[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/pinctrl/samsung/Kconfig b/src/kernel/linux/v4.14/drivers/pinctrl/samsung/Kconfig
new file mode 100644
index 0000000..0357f97
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/pinctrl/samsung/Kconfig
@@ -0,0 +1,38 @@
+#
+# Samsung Pin control drivers
+#
+config PINCTRL_SAMSUNG
+ bool
+ select PINMUX
+ select PINCONF
+
+config PINCTRL_EXYNOS
+ bool "Pinctrl driver data for Samsung EXYNOS SoCs other than 5440"
+ depends on OF && GPIOLIB && (ARCH_EXYNOS || ARCH_S5PV210)
+ select PINCTRL_SAMSUNG
+ select PINCTRL_EXYNOS_ARM if ARM && (ARCH_EXYNOS || ARCH_S5PV210)
+ select PINCTRL_EXYNOS_ARM64 if ARM64 && ARCH_EXYNOS
+
+config PINCTRL_EXYNOS_ARM
+ bool "ARMv7-specific pinctrl driver data for Exynos (except Exynos5440)" if COMPILE_TEST
+ depends on PINCTRL_EXYNOS
+
+config PINCTRL_EXYNOS_ARM64
+ bool "ARMv8-specific pinctrl driver data for Exynos" if COMPILE_TEST
+ depends on PINCTRL_EXYNOS
+
+config PINCTRL_EXYNOS5440
+ bool "Samsung EXYNOS5440 SoC pinctrl driver"
+ depends on SOC_EXYNOS5440
+ select PINMUX
+ select PINCONF
+
+config PINCTRL_S3C24XX
+ bool "Samsung S3C24XX SoC pinctrl driver"
+ depends on ARCH_S3C24XX
+ select PINCTRL_SAMSUNG
+
+config PINCTRL_S3C64XX
+ bool "Samsung S3C64XX SoC pinctrl driver"
+ depends on ARCH_S3C64XX
+ select PINCTRL_SAMSUNG
diff --git a/src/kernel/linux/v4.14/drivers/pinctrl/samsung/Makefile b/src/kernel/linux/v4.14/drivers/pinctrl/samsung/Makefile
new file mode 100644
index 0000000..df426561
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/pinctrl/samsung/Makefile
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0
+# Samsung pin control drivers
+
+obj-$(CONFIG_PINCTRL_SAMSUNG) += pinctrl-samsung.o
+obj-$(CONFIG_PINCTRL_EXYNOS) += pinctrl-exynos.o
+obj-$(CONFIG_PINCTRL_EXYNOS_ARM) += pinctrl-exynos-arm.o
+obj-$(CONFIG_PINCTRL_EXYNOS_ARM64) += pinctrl-exynos-arm64.o
+obj-$(CONFIG_PINCTRL_EXYNOS5440) += pinctrl-exynos5440.o
+obj-$(CONFIG_PINCTRL_S3C24XX) += pinctrl-s3c24xx.o
+obj-$(CONFIG_PINCTRL_S3C64XX) += pinctrl-s3c64xx.o
diff --git a/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-exynos-arm.c b/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-exynos-arm.c
new file mode 100644
index 0000000..07eb4f0
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-exynos-arm.c
@@ -0,0 +1,856 @@
+/*
+ * Exynos specific support for Samsung pinctrl/gpiolib driver with eint support.
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ * Copyright (c) 2012 Linaro Ltd
+ * http://www.linaro.org
+ *
+ * Author: Thomas Abraham <thomas.ab@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This file contains the Samsung Exynos specific information required by the
+ * the Samsung pinctrl/gpiolib driver. It also includes the implementation of
+ * external gpio and wakeup interrupt support.
+ */
+
+#include <linux/device.h>
+#include <linux/of_address.h>
+#include <linux/slab.h>
+#include <linux/err.h>
+#include <linux/soc/samsung/exynos-regs-pmu.h>
+
+#include "pinctrl-samsung.h"
+#include "pinctrl-exynos.h"
+
+static const struct samsung_pin_bank_type bank_type_off = {
+ .fld_width = { 4, 1, 2, 2, 2, 2, },
+ .reg_offset = { 0x00, 0x04, 0x08, 0x0c, 0x10, 0x14, },
+};
+
+static const struct samsung_pin_bank_type bank_type_alive = {
+ .fld_width = { 4, 1, 2, 2, },
+ .reg_offset = { 0x00, 0x04, 0x08, 0x0c, },
+};
+
+/* Retention control for S5PV210 are located at the end of clock controller */
+#define S5P_OTHERS 0xE000
+
+#define S5P_OTHERS_RET_IO (1 << 31)
+#define S5P_OTHERS_RET_CF (1 << 30)
+#define S5P_OTHERS_RET_MMC (1 << 29)
+#define S5P_OTHERS_RET_UART (1 << 28)
+
+static void s5pv210_retention_disable(struct samsung_pinctrl_drv_data *drvdata)
+{
+ void __iomem *clk_base = (void __iomem *)drvdata->retention_ctrl->priv;
+ u32 tmp;
+
+ tmp = __raw_readl(clk_base + S5P_OTHERS);
+ tmp |= (S5P_OTHERS_RET_IO | S5P_OTHERS_RET_CF | S5P_OTHERS_RET_MMC |
+ S5P_OTHERS_RET_UART);
+ __raw_writel(tmp, clk_base + S5P_OTHERS);
+}
+
+static struct samsung_retention_ctrl *
+s5pv210_retention_init(struct samsung_pinctrl_drv_data *drvdata,
+ const struct samsung_retention_data *data)
+{
+ struct samsung_retention_ctrl *ctrl;
+ struct device_node *np;
+ void __iomem *clk_base;
+
+ ctrl = devm_kzalloc(drvdata->dev, sizeof(*ctrl), GFP_KERNEL);
+ if (!ctrl)
+ return ERR_PTR(-ENOMEM);
+
+ np = of_find_compatible_node(NULL, NULL, "samsung,s5pv210-clock");
+ if (!np) {
+ pr_err("%s: failed to find clock controller DT node\n",
+ __func__);
+ return ERR_PTR(-ENODEV);
+ }
+
+ clk_base = of_iomap(np, 0);
+ of_node_put(np);
+ if (!clk_base) {
+ pr_err("%s: failed to map clock registers\n", __func__);
+ return ERR_PTR(-EINVAL);
+ }
+
+ ctrl->priv = (void __force *)clk_base;
+ ctrl->disable = s5pv210_retention_disable;
+
+ return ctrl;
+}
+
+static const struct samsung_retention_data s5pv210_retention_data __initconst = {
+ .init = s5pv210_retention_init,
+};
+
+/* pin banks of s5pv210 pin-controller */
+static const struct samsung_pin_bank_data s5pv210_pin_bank[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpa0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(4, 0x020, "gpa1", 0x04),
+ EXYNOS_PIN_BANK_EINTG(8, 0x040, "gpb", 0x08),
+ EXYNOS_PIN_BANK_EINTG(5, 0x060, "gpc0", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(5, 0x080, "gpc1", 0x10),
+ EXYNOS_PIN_BANK_EINTG(4, 0x0a0, "gpd0", 0x14),
+ EXYNOS_PIN_BANK_EINTG(6, 0x0c0, "gpd1", 0x18),
+ EXYNOS_PIN_BANK_EINTG(8, 0x0e0, "gpe0", 0x1c),
+ EXYNOS_PIN_BANK_EINTG(5, 0x100, "gpe1", 0x20),
+ EXYNOS_PIN_BANK_EINTG(8, 0x120, "gpf0", 0x24),
+ EXYNOS_PIN_BANK_EINTG(8, 0x140, "gpf1", 0x28),
+ EXYNOS_PIN_BANK_EINTG(8, 0x160, "gpf2", 0x2c),
+ EXYNOS_PIN_BANK_EINTG(6, 0x180, "gpf3", 0x30),
+ EXYNOS_PIN_BANK_EINTG(7, 0x1a0, "gpg0", 0x34),
+ EXYNOS_PIN_BANK_EINTG(7, 0x1c0, "gpg1", 0x38),
+ EXYNOS_PIN_BANK_EINTG(7, 0x1e0, "gpg2", 0x3c),
+ EXYNOS_PIN_BANK_EINTG(7, 0x200, "gpg3", 0x40),
+ EXYNOS_PIN_BANK_EINTG(8, 0x240, "gpj0", 0x44),
+ EXYNOS_PIN_BANK_EINTG(6, 0x260, "gpj1", 0x48),
+ EXYNOS_PIN_BANK_EINTG(8, 0x280, "gpj2", 0x4c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x2a0, "gpj3", 0x50),
+ EXYNOS_PIN_BANK_EINTG(5, 0x2c0, "gpj4", 0x54),
+ EXYNOS_PIN_BANK_EINTN(7, 0x220, "gpi"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x2e0, "mp01"),
+ EXYNOS_PIN_BANK_EINTN(4, 0x300, "mp02"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x320, "mp03"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x340, "mp04"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x360, "mp05"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x380, "mp06"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x3a0, "mp07"),
+ EXYNOS_PIN_BANK_EINTW(8, 0xc00, "gph0", 0x00),
+ EXYNOS_PIN_BANK_EINTW(8, 0xc20, "gph1", 0x04),
+ EXYNOS_PIN_BANK_EINTW(8, 0xc40, "gph2", 0x08),
+ EXYNOS_PIN_BANK_EINTW(8, 0xc60, "gph3", 0x0c),
+};
+
+static const struct samsung_pin_ctrl s5pv210_pin_ctrl[] __initconst = {
+ {
+ /* pin-controller instance 0 data */
+ .pin_banks = s5pv210_pin_bank,
+ .nr_banks = ARRAY_SIZE(s5pv210_pin_bank),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .eint_wkup_init = exynos_eint_wkup_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ .retention_data = &s5pv210_retention_data,
+ },
+};
+
+const struct samsung_pinctrl_of_match_data s5pv210_of_data __initconst = {
+ .ctrl = s5pv210_pin_ctrl,
+ .num_ctrl = ARRAY_SIZE(s5pv210_pin_ctrl),
+};
+
+/* Pad retention control code for accessing PMU regmap */
+static atomic_t exynos_shared_retention_refcnt;
+
+/* pin banks of exynos3250 pin-controller 0 */
+static const struct samsung_pin_bank_data exynos3250_pin_banks0[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpa0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(6, 0x020, "gpa1", 0x04),
+ EXYNOS_PIN_BANK_EINTG(8, 0x040, "gpb", 0x08),
+ EXYNOS_PIN_BANK_EINTG(5, 0x060, "gpc0", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(5, 0x080, "gpc1", 0x10),
+ EXYNOS_PIN_BANK_EINTG(4, 0x0a0, "gpd0", 0x14),
+ EXYNOS_PIN_BANK_EINTG(4, 0x0c0, "gpd1", 0x18),
+};
+
+/* pin banks of exynos3250 pin-controller 1 */
+static const struct samsung_pin_bank_data exynos3250_pin_banks1[] __initconst = {
+ EXYNOS_PIN_BANK_EINTN(8, 0x120, "gpe0"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x140, "gpe1"),
+ EXYNOS_PIN_BANK_EINTN(3, 0x180, "gpe2"),
+ EXYNOS_PIN_BANK_EINTG(8, 0x040, "gpk0", 0x08),
+ EXYNOS_PIN_BANK_EINTG(7, 0x060, "gpk1", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(7, 0x080, "gpk2", 0x10),
+ EXYNOS_PIN_BANK_EINTG(4, 0x0c0, "gpl0", 0x18),
+ EXYNOS_PIN_BANK_EINTG(8, 0x260, "gpm0", 0x24),
+ EXYNOS_PIN_BANK_EINTG(7, 0x280, "gpm1", 0x28),
+ EXYNOS_PIN_BANK_EINTG(5, 0x2a0, "gpm2", 0x2c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x2c0, "gpm3", 0x30),
+ EXYNOS_PIN_BANK_EINTG(8, 0x2e0, "gpm4", 0x34),
+ EXYNOS_PIN_BANK_EINTW(8, 0xc00, "gpx0", 0x00),
+ EXYNOS_PIN_BANK_EINTW(8, 0xc20, "gpx1", 0x04),
+ EXYNOS_PIN_BANK_EINTW(8, 0xc40, "gpx2", 0x08),
+ EXYNOS_PIN_BANK_EINTW(8, 0xc60, "gpx3", 0x0c),
+};
+
+/*
+ * PMU pad retention groups for Exynos3250 doesn't match pin banks, so handle
+ * them all together
+ */
+static const u32 exynos3250_retention_regs[] = {
+ S5P_PAD_RET_MAUDIO_OPTION,
+ S5P_PAD_RET_GPIO_OPTION,
+ S5P_PAD_RET_UART_OPTION,
+ S5P_PAD_RET_MMCA_OPTION,
+ S5P_PAD_RET_MMCB_OPTION,
+ S5P_PAD_RET_EBIA_OPTION,
+ S5P_PAD_RET_EBIB_OPTION,
+ S5P_PAD_RET_MMC2_OPTION,
+ S5P_PAD_RET_SPI_OPTION,
+};
+
+static const struct samsung_retention_data exynos3250_retention_data __initconst = {
+ .regs = exynos3250_retention_regs,
+ .nr_regs = ARRAY_SIZE(exynos3250_retention_regs),
+ .value = EXYNOS_WAKEUP_FROM_LOWPWR,
+ .refcnt = &exynos_shared_retention_refcnt,
+ .init = exynos_retention_init,
+};
+
+/*
+ * Samsung pinctrl driver data for Exynos3250 SoC. Exynos3250 SoC includes
+ * two gpio/pin-mux/pinconfig controllers.
+ */
+static const struct samsung_pin_ctrl exynos3250_pin_ctrl[] __initconst = {
+ {
+ /* pin-controller instance 0 data */
+ .pin_banks = exynos3250_pin_banks0,
+ .nr_banks = ARRAY_SIZE(exynos3250_pin_banks0),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ .retention_data = &exynos3250_retention_data,
+ }, {
+ /* pin-controller instance 1 data */
+ .pin_banks = exynos3250_pin_banks1,
+ .nr_banks = ARRAY_SIZE(exynos3250_pin_banks1),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .eint_wkup_init = exynos_eint_wkup_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ .retention_data = &exynos3250_retention_data,
+ },
+};
+
+const struct samsung_pinctrl_of_match_data exynos3250_of_data __initconst = {
+ .ctrl = exynos3250_pin_ctrl,
+ .num_ctrl = ARRAY_SIZE(exynos3250_pin_ctrl),
+};
+
+/* pin banks of exynos4210 pin-controller 0 */
+static const struct samsung_pin_bank_data exynos4210_pin_banks0[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpa0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(6, 0x020, "gpa1", 0x04),
+ EXYNOS_PIN_BANK_EINTG(8, 0x040, "gpb", 0x08),
+ EXYNOS_PIN_BANK_EINTG(5, 0x060, "gpc0", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(5, 0x080, "gpc1", 0x10),
+ EXYNOS_PIN_BANK_EINTG(4, 0x0A0, "gpd0", 0x14),
+ EXYNOS_PIN_BANK_EINTG(4, 0x0C0, "gpd1", 0x18),
+ EXYNOS_PIN_BANK_EINTG(5, 0x0E0, "gpe0", 0x1c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x100, "gpe1", 0x20),
+ EXYNOS_PIN_BANK_EINTG(6, 0x120, "gpe2", 0x24),
+ EXYNOS_PIN_BANK_EINTG(8, 0x140, "gpe3", 0x28),
+ EXYNOS_PIN_BANK_EINTG(8, 0x160, "gpe4", 0x2c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x180, "gpf0", 0x30),
+ EXYNOS_PIN_BANK_EINTG(8, 0x1A0, "gpf1", 0x34),
+ EXYNOS_PIN_BANK_EINTG(8, 0x1C0, "gpf2", 0x38),
+ EXYNOS_PIN_BANK_EINTG(6, 0x1E0, "gpf3", 0x3c),
+};
+
+/* pin banks of exynos4210 pin-controller 1 */
+static const struct samsung_pin_bank_data exynos4210_pin_banks1[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpj0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(5, 0x020, "gpj1", 0x04),
+ EXYNOS_PIN_BANK_EINTG(7, 0x040, "gpk0", 0x08),
+ EXYNOS_PIN_BANK_EINTG(7, 0x060, "gpk1", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(7, 0x080, "gpk2", 0x10),
+ EXYNOS_PIN_BANK_EINTG(7, 0x0A0, "gpk3", 0x14),
+ EXYNOS_PIN_BANK_EINTG(8, 0x0C0, "gpl0", 0x18),
+ EXYNOS_PIN_BANK_EINTG(3, 0x0E0, "gpl1", 0x1c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x100, "gpl2", 0x20),
+ EXYNOS_PIN_BANK_EINTN(6, 0x120, "gpy0"),
+ EXYNOS_PIN_BANK_EINTN(4, 0x140, "gpy1"),
+ EXYNOS_PIN_BANK_EINTN(6, 0x160, "gpy2"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x180, "gpy3"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x1A0, "gpy4"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x1C0, "gpy5"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x1E0, "gpy6"),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC00, "gpx0", 0x00),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC20, "gpx1", 0x04),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC40, "gpx2", 0x08),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC60, "gpx3", 0x0c),
+};
+
+/* pin banks of exynos4210 pin-controller 2 */
+static const struct samsung_pin_bank_data exynos4210_pin_banks2[] __initconst = {
+ EXYNOS_PIN_BANK_EINTN(7, 0x000, "gpz"),
+};
+
+/* PMU pad retention groups registers for Exynos4 (without audio) */
+static const u32 exynos4_retention_regs[] = {
+ S5P_PAD_RET_GPIO_OPTION,
+ S5P_PAD_RET_UART_OPTION,
+ S5P_PAD_RET_MMCA_OPTION,
+ S5P_PAD_RET_MMCB_OPTION,
+ S5P_PAD_RET_EBIA_OPTION,
+ S5P_PAD_RET_EBIB_OPTION,
+};
+
+static const struct samsung_retention_data exynos4_retention_data __initconst = {
+ .regs = exynos4_retention_regs,
+ .nr_regs = ARRAY_SIZE(exynos4_retention_regs),
+ .value = EXYNOS_WAKEUP_FROM_LOWPWR,
+ .refcnt = &exynos_shared_retention_refcnt,
+ .init = exynos_retention_init,
+};
+
+/* PMU retention control for audio pins can be tied to audio pin bank */
+static const u32 exynos4_audio_retention_regs[] = {
+ S5P_PAD_RET_MAUDIO_OPTION,
+};
+
+static const struct samsung_retention_data exynos4_audio_retention_data __initconst = {
+ .regs = exynos4_audio_retention_regs,
+ .nr_regs = ARRAY_SIZE(exynos4_audio_retention_regs),
+ .value = EXYNOS_WAKEUP_FROM_LOWPWR,
+ .init = exynos_retention_init,
+};
+
+/*
+ * Samsung pinctrl driver data for Exynos4210 SoC. Exynos4210 SoC includes
+ * three gpio/pin-mux/pinconfig controllers.
+ */
+static const struct samsung_pin_ctrl exynos4210_pin_ctrl[] __initconst = {
+ {
+ /* pin-controller instance 0 data */
+ .pin_banks = exynos4210_pin_banks0,
+ .nr_banks = ARRAY_SIZE(exynos4210_pin_banks0),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ .retention_data = &exynos4_retention_data,
+ }, {
+ /* pin-controller instance 1 data */
+ .pin_banks = exynos4210_pin_banks1,
+ .nr_banks = ARRAY_SIZE(exynos4210_pin_banks1),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .eint_wkup_init = exynos_eint_wkup_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ .retention_data = &exynos4_retention_data,
+ }, {
+ /* pin-controller instance 2 data */
+ .pin_banks = exynos4210_pin_banks2,
+ .nr_banks = ARRAY_SIZE(exynos4210_pin_banks2),
+ .retention_data = &exynos4_audio_retention_data,
+ },
+};
+
+const struct samsung_pinctrl_of_match_data exynos4210_of_data __initconst = {
+ .ctrl = exynos4210_pin_ctrl,
+ .num_ctrl = ARRAY_SIZE(exynos4210_pin_ctrl),
+};
+
+/* pin banks of exynos4x12 pin-controller 0 */
+static const struct samsung_pin_bank_data exynos4x12_pin_banks0[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpa0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(6, 0x020, "gpa1", 0x04),
+ EXYNOS_PIN_BANK_EINTG(8, 0x040, "gpb", 0x08),
+ EXYNOS_PIN_BANK_EINTG(5, 0x060, "gpc0", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(5, 0x080, "gpc1", 0x10),
+ EXYNOS_PIN_BANK_EINTG(4, 0x0A0, "gpd0", 0x14),
+ EXYNOS_PIN_BANK_EINTG(4, 0x0C0, "gpd1", 0x18),
+ EXYNOS_PIN_BANK_EINTG(8, 0x180, "gpf0", 0x30),
+ EXYNOS_PIN_BANK_EINTG(8, 0x1A0, "gpf1", 0x34),
+ EXYNOS_PIN_BANK_EINTG(8, 0x1C0, "gpf2", 0x38),
+ EXYNOS_PIN_BANK_EINTG(6, 0x1E0, "gpf3", 0x3c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x240, "gpj0", 0x40),
+ EXYNOS_PIN_BANK_EINTG(5, 0x260, "gpj1", 0x44),
+};
+
+/* pin banks of exynos4x12 pin-controller 1 */
+static const struct samsung_pin_bank_data exynos4x12_pin_banks1[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(7, 0x040, "gpk0", 0x08),
+ EXYNOS_PIN_BANK_EINTG(7, 0x060, "gpk1", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(7, 0x080, "gpk2", 0x10),
+ EXYNOS_PIN_BANK_EINTG(7, 0x0A0, "gpk3", 0x14),
+ EXYNOS_PIN_BANK_EINTG(7, 0x0C0, "gpl0", 0x18),
+ EXYNOS_PIN_BANK_EINTG(2, 0x0E0, "gpl1", 0x1c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x100, "gpl2", 0x20),
+ EXYNOS_PIN_BANK_EINTG(8, 0x260, "gpm0", 0x24),
+ EXYNOS_PIN_BANK_EINTG(7, 0x280, "gpm1", 0x28),
+ EXYNOS_PIN_BANK_EINTG(5, 0x2A0, "gpm2", 0x2c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x2C0, "gpm3", 0x30),
+ EXYNOS_PIN_BANK_EINTG(8, 0x2E0, "gpm4", 0x34),
+ EXYNOS_PIN_BANK_EINTN(6, 0x120, "gpy0"),
+ EXYNOS_PIN_BANK_EINTN(4, 0x140, "gpy1"),
+ EXYNOS_PIN_BANK_EINTN(6, 0x160, "gpy2"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x180, "gpy3"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x1A0, "gpy4"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x1C0, "gpy5"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x1E0, "gpy6"),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC00, "gpx0", 0x00),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC20, "gpx1", 0x04),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC40, "gpx2", 0x08),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC60, "gpx3", 0x0c),
+};
+
+/* pin banks of exynos4x12 pin-controller 2 */
+static const struct samsung_pin_bank_data exynos4x12_pin_banks2[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(7, 0x000, "gpz", 0x00),
+};
+
+/* pin banks of exynos4x12 pin-controller 3 */
+static const struct samsung_pin_bank_data exynos4x12_pin_banks3[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpv0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(8, 0x020, "gpv1", 0x04),
+ EXYNOS_PIN_BANK_EINTG(8, 0x040, "gpv2", 0x08),
+ EXYNOS_PIN_BANK_EINTG(8, 0x060, "gpv3", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(2, 0x080, "gpv4", 0x10),
+};
+
+/*
+ * Samsung pinctrl driver data for Exynos4x12 SoC. Exynos4x12 SoC includes
+ * four gpio/pin-mux/pinconfig controllers.
+ */
+static const struct samsung_pin_ctrl exynos4x12_pin_ctrl[] __initconst = {
+ {
+ /* pin-controller instance 0 data */
+ .pin_banks = exynos4x12_pin_banks0,
+ .nr_banks = ARRAY_SIZE(exynos4x12_pin_banks0),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ .retention_data = &exynos4_retention_data,
+ }, {
+ /* pin-controller instance 1 data */
+ .pin_banks = exynos4x12_pin_banks1,
+ .nr_banks = ARRAY_SIZE(exynos4x12_pin_banks1),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .eint_wkup_init = exynos_eint_wkup_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ .retention_data = &exynos4_retention_data,
+ }, {
+ /* pin-controller instance 2 data */
+ .pin_banks = exynos4x12_pin_banks2,
+ .nr_banks = ARRAY_SIZE(exynos4x12_pin_banks2),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ .retention_data = &exynos4_audio_retention_data,
+ }, {
+ /* pin-controller instance 3 data */
+ .pin_banks = exynos4x12_pin_banks3,
+ .nr_banks = ARRAY_SIZE(exynos4x12_pin_banks3),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ },
+};
+
+const struct samsung_pinctrl_of_match_data exynos4x12_of_data __initconst = {
+ .ctrl = exynos4x12_pin_ctrl,
+ .num_ctrl = ARRAY_SIZE(exynos4x12_pin_ctrl),
+};
+
+/* pin banks of exynos5250 pin-controller 0 */
+static const struct samsung_pin_bank_data exynos5250_pin_banks0[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpa0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(6, 0x020, "gpa1", 0x04),
+ EXYNOS_PIN_BANK_EINTG(8, 0x040, "gpa2", 0x08),
+ EXYNOS_PIN_BANK_EINTG(5, 0x060, "gpb0", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(5, 0x080, "gpb1", 0x10),
+ EXYNOS_PIN_BANK_EINTG(4, 0x0A0, "gpb2", 0x14),
+ EXYNOS_PIN_BANK_EINTG(4, 0x0C0, "gpb3", 0x18),
+ EXYNOS_PIN_BANK_EINTG(7, 0x0E0, "gpc0", 0x1c),
+ EXYNOS_PIN_BANK_EINTG(4, 0x100, "gpc1", 0x20),
+ EXYNOS_PIN_BANK_EINTG(7, 0x120, "gpc2", 0x24),
+ EXYNOS_PIN_BANK_EINTG(7, 0x140, "gpc3", 0x28),
+ EXYNOS_PIN_BANK_EINTG(4, 0x160, "gpd0", 0x2c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x180, "gpd1", 0x30),
+ EXYNOS_PIN_BANK_EINTG(7, 0x2E0, "gpc4", 0x34),
+ EXYNOS_PIN_BANK_EINTN(6, 0x1A0, "gpy0"),
+ EXYNOS_PIN_BANK_EINTN(4, 0x1C0, "gpy1"),
+ EXYNOS_PIN_BANK_EINTN(6, 0x1E0, "gpy2"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x200, "gpy3"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x220, "gpy4"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x240, "gpy5"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x260, "gpy6"),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC00, "gpx0", 0x00),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC20, "gpx1", 0x04),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC40, "gpx2", 0x08),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC60, "gpx3", 0x0c),
+};
+
+/* pin banks of exynos5250 pin-controller 1 */
+static const struct samsung_pin_bank_data exynos5250_pin_banks1[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpe0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(2, 0x020, "gpe1", 0x04),
+ EXYNOS_PIN_BANK_EINTG(4, 0x040, "gpf0", 0x08),
+ EXYNOS_PIN_BANK_EINTG(4, 0x060, "gpf1", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x080, "gpg0", 0x10),
+ EXYNOS_PIN_BANK_EINTG(8, 0x0A0, "gpg1", 0x14),
+ EXYNOS_PIN_BANK_EINTG(2, 0x0C0, "gpg2", 0x18),
+ EXYNOS_PIN_BANK_EINTG(4, 0x0E0, "gph0", 0x1c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x100, "gph1", 0x20),
+};
+
+/* pin banks of exynos5250 pin-controller 2 */
+static const struct samsung_pin_bank_data exynos5250_pin_banks2[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpv0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(8, 0x020, "gpv1", 0x04),
+ EXYNOS_PIN_BANK_EINTG(8, 0x060, "gpv2", 0x08),
+ EXYNOS_PIN_BANK_EINTG(8, 0x080, "gpv3", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(2, 0x0C0, "gpv4", 0x10),
+};
+
+/* pin banks of exynos5250 pin-controller 3 */
+static const struct samsung_pin_bank_data exynos5250_pin_banks3[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(7, 0x000, "gpz", 0x00),
+};
+
+/*
+ * Samsung pinctrl driver data for Exynos5250 SoC. Exynos5250 SoC includes
+ * four gpio/pin-mux/pinconfig controllers.
+ */
+static const struct samsung_pin_ctrl exynos5250_pin_ctrl[] __initconst = {
+ {
+ /* pin-controller instance 0 data */
+ .pin_banks = exynos5250_pin_banks0,
+ .nr_banks = ARRAY_SIZE(exynos5250_pin_banks0),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .eint_wkup_init = exynos_eint_wkup_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ .retention_data = &exynos4_retention_data,
+ }, {
+ /* pin-controller instance 1 data */
+ .pin_banks = exynos5250_pin_banks1,
+ .nr_banks = ARRAY_SIZE(exynos5250_pin_banks1),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ .retention_data = &exynos4_retention_data,
+ }, {
+ /* pin-controller instance 2 data */
+ .pin_banks = exynos5250_pin_banks2,
+ .nr_banks = ARRAY_SIZE(exynos5250_pin_banks2),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ }, {
+ /* pin-controller instance 3 data */
+ .pin_banks = exynos5250_pin_banks3,
+ .nr_banks = ARRAY_SIZE(exynos5250_pin_banks3),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ .retention_data = &exynos4_audio_retention_data,
+ },
+};
+
+const struct samsung_pinctrl_of_match_data exynos5250_of_data __initconst = {
+ .ctrl = exynos5250_pin_ctrl,
+ .num_ctrl = ARRAY_SIZE(exynos5250_pin_ctrl),
+};
+
+/* pin banks of exynos5260 pin-controller 0 */
+static const struct samsung_pin_bank_data exynos5260_pin_banks0[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(4, 0x000, "gpa0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(7, 0x020, "gpa1", 0x04),
+ EXYNOS_PIN_BANK_EINTG(8, 0x040, "gpa2", 0x08),
+ EXYNOS_PIN_BANK_EINTG(5, 0x060, "gpb0", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(4, 0x080, "gpb1", 0x10),
+ EXYNOS_PIN_BANK_EINTG(5, 0x0a0, "gpb2", 0x14),
+ EXYNOS_PIN_BANK_EINTG(8, 0x0c0, "gpb3", 0x18),
+ EXYNOS_PIN_BANK_EINTG(8, 0x0e0, "gpb4", 0x1c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x100, "gpb5", 0x20),
+ EXYNOS_PIN_BANK_EINTG(8, 0x120, "gpd0", 0x24),
+ EXYNOS_PIN_BANK_EINTG(7, 0x140, "gpd1", 0x28),
+ EXYNOS_PIN_BANK_EINTG(5, 0x160, "gpd2", 0x2c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x180, "gpe0", 0x30),
+ EXYNOS_PIN_BANK_EINTG(5, 0x1a0, "gpe1", 0x34),
+ EXYNOS_PIN_BANK_EINTG(4, 0x1c0, "gpf0", 0x38),
+ EXYNOS_PIN_BANK_EINTG(8, 0x1e0, "gpf1", 0x3c),
+ EXYNOS_PIN_BANK_EINTG(2, 0x200, "gpk0", 0x40),
+ EXYNOS_PIN_BANK_EINTW(8, 0xc00, "gpx0", 0x00),
+ EXYNOS_PIN_BANK_EINTW(8, 0xc20, "gpx1", 0x04),
+ EXYNOS_PIN_BANK_EINTW(8, 0xc40, "gpx2", 0x08),
+ EXYNOS_PIN_BANK_EINTW(8, 0xc60, "gpx3", 0x0c),
+};
+
+/* pin banks of exynos5260 pin-controller 1 */
+static const struct samsung_pin_bank_data exynos5260_pin_banks1[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(7, 0x000, "gpc0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(6, 0x020, "gpc1", 0x04),
+ EXYNOS_PIN_BANK_EINTG(7, 0x040, "gpc2", 0x08),
+ EXYNOS_PIN_BANK_EINTG(4, 0x060, "gpc3", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(4, 0x080, "gpc4", 0x10),
+};
+
+/* pin banks of exynos5260 pin-controller 2 */
+static const struct samsung_pin_bank_data exynos5260_pin_banks2[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(7, 0x000, "gpz0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(4, 0x020, "gpz1", 0x04),
+};
+
+/*
+ * Samsung pinctrl driver data for Exynos5260 SoC. Exynos5260 SoC includes
+ * three gpio/pin-mux/pinconfig controllers.
+ */
+static const struct samsung_pin_ctrl exynos5260_pin_ctrl[] __initconst = {
+ {
+ /* pin-controller instance 0 data */
+ .pin_banks = exynos5260_pin_banks0,
+ .nr_banks = ARRAY_SIZE(exynos5260_pin_banks0),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .eint_wkup_init = exynos_eint_wkup_init,
+ }, {
+ /* pin-controller instance 1 data */
+ .pin_banks = exynos5260_pin_banks1,
+ .nr_banks = ARRAY_SIZE(exynos5260_pin_banks1),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ }, {
+ /* pin-controller instance 2 data */
+ .pin_banks = exynos5260_pin_banks2,
+ .nr_banks = ARRAY_SIZE(exynos5260_pin_banks2),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ },
+};
+
+const struct samsung_pinctrl_of_match_data exynos5260_of_data __initconst = {
+ .ctrl = exynos5260_pin_ctrl,
+ .num_ctrl = ARRAY_SIZE(exynos5260_pin_ctrl),
+};
+
+/* pin banks of exynos5410 pin-controller 0 */
+static const struct samsung_pin_bank_data exynos5410_pin_banks0[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpa0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(6, 0x020, "gpa1", 0x04),
+ EXYNOS_PIN_BANK_EINTG(8, 0x040, "gpa2", 0x08),
+ EXYNOS_PIN_BANK_EINTG(5, 0x060, "gpb0", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(5, 0x080, "gpb1", 0x10),
+ EXYNOS_PIN_BANK_EINTG(4, 0x0A0, "gpb2", 0x14),
+ EXYNOS_PIN_BANK_EINTG(4, 0x0C0, "gpb3", 0x18),
+ EXYNOS_PIN_BANK_EINTG(7, 0x0E0, "gpc0", 0x1c),
+ EXYNOS_PIN_BANK_EINTG(4, 0x100, "gpc3", 0x20),
+ EXYNOS_PIN_BANK_EINTG(7, 0x120, "gpc1", 0x24),
+ EXYNOS_PIN_BANK_EINTG(7, 0x140, "gpc2", 0x28),
+ EXYNOS_PIN_BANK_EINTG(8, 0x180, "gpd1", 0x2c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x1A0, "gpe0", 0x30),
+ EXYNOS_PIN_BANK_EINTG(2, 0x1C0, "gpe1", 0x34),
+ EXYNOS_PIN_BANK_EINTG(6, 0x1E0, "gpf0", 0x38),
+ EXYNOS_PIN_BANK_EINTG(8, 0x200, "gpf1", 0x3c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x220, "gpg0", 0x40),
+ EXYNOS_PIN_BANK_EINTG(8, 0x240, "gpg1", 0x44),
+ EXYNOS_PIN_BANK_EINTG(2, 0x260, "gpg2", 0x48),
+ EXYNOS_PIN_BANK_EINTG(4, 0x280, "gph0", 0x4c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x2A0, "gph1", 0x50),
+ EXYNOS_PIN_BANK_EINTN(2, 0x160, "gpm5"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x2C0, "gpm7"),
+ EXYNOS_PIN_BANK_EINTN(6, 0x2E0, "gpy0"),
+ EXYNOS_PIN_BANK_EINTN(4, 0x300, "gpy1"),
+ EXYNOS_PIN_BANK_EINTN(6, 0x320, "gpy2"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x340, "gpy3"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x360, "gpy4"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x380, "gpy5"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x3A0, "gpy6"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x3C0, "gpy7"),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC00, "gpx0", 0x00),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC20, "gpx1", 0x04),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC40, "gpx2", 0x08),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC60, "gpx3", 0x0c),
+};
+
+/* pin banks of exynos5410 pin-controller 1 */
+static const struct samsung_pin_bank_data exynos5410_pin_banks1[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(5, 0x000, "gpj0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(8, 0x020, "gpj1", 0x04),
+ EXYNOS_PIN_BANK_EINTG(8, 0x040, "gpj2", 0x08),
+ EXYNOS_PIN_BANK_EINTG(8, 0x060, "gpj3", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(2, 0x080, "gpj4", 0x10),
+ EXYNOS_PIN_BANK_EINTG(8, 0x0A0, "gpk0", 0x14),
+ EXYNOS_PIN_BANK_EINTG(8, 0x0C0, "gpk1", 0x18),
+ EXYNOS_PIN_BANK_EINTG(8, 0x0E0, "gpk2", 0x1c),
+ EXYNOS_PIN_BANK_EINTG(7, 0x100, "gpk3", 0x20),
+};
+
+/* pin banks of exynos5410 pin-controller 2 */
+static const struct samsung_pin_bank_data exynos5410_pin_banks2[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpv0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(8, 0x020, "gpv1", 0x04),
+ EXYNOS_PIN_BANK_EINTG(8, 0x060, "gpv2", 0x08),
+ EXYNOS_PIN_BANK_EINTG(8, 0x080, "gpv3", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(2, 0x0C0, "gpv4", 0x10),
+};
+
+/* pin banks of exynos5410 pin-controller 3 */
+static const struct samsung_pin_bank_data exynos5410_pin_banks3[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(7, 0x000, "gpz", 0x00),
+};
+
+/*
+ * Samsung pinctrl driver data for Exynos5410 SoC. Exynos5410 SoC includes
+ * four gpio/pin-mux/pinconfig controllers.
+ */
+static const struct samsung_pin_ctrl exynos5410_pin_ctrl[] __initconst = {
+ {
+ /* pin-controller instance 0 data */
+ .pin_banks = exynos5410_pin_banks0,
+ .nr_banks = ARRAY_SIZE(exynos5410_pin_banks0),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .eint_wkup_init = exynos_eint_wkup_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ }, {
+ /* pin-controller instance 1 data */
+ .pin_banks = exynos5410_pin_banks1,
+ .nr_banks = ARRAY_SIZE(exynos5410_pin_banks1),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ }, {
+ /* pin-controller instance 2 data */
+ .pin_banks = exynos5410_pin_banks2,
+ .nr_banks = ARRAY_SIZE(exynos5410_pin_banks2),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ }, {
+ /* pin-controller instance 3 data */
+ .pin_banks = exynos5410_pin_banks3,
+ .nr_banks = ARRAY_SIZE(exynos5410_pin_banks3),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ },
+};
+
+const struct samsung_pinctrl_of_match_data exynos5410_of_data __initconst = {
+ .ctrl = exynos5410_pin_ctrl,
+ .num_ctrl = ARRAY_SIZE(exynos5410_pin_ctrl),
+};
+
+/* pin banks of exynos5420 pin-controller 0 */
+static const struct samsung_pin_bank_data exynos5420_pin_banks0[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpy7", 0x00),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC00, "gpx0", 0x00),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC20, "gpx1", 0x04),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC40, "gpx2", 0x08),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC60, "gpx3", 0x0c),
+};
+
+/* pin banks of exynos5420 pin-controller 1 */
+static const struct samsung_pin_bank_data exynos5420_pin_banks1[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpc0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(8, 0x020, "gpc1", 0x04),
+ EXYNOS_PIN_BANK_EINTG(7, 0x040, "gpc2", 0x08),
+ EXYNOS_PIN_BANK_EINTG(4, 0x060, "gpc3", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(2, 0x080, "gpc4", 0x10),
+ EXYNOS_PIN_BANK_EINTG(8, 0x0A0, "gpd1", 0x14),
+ EXYNOS_PIN_BANK_EINTN(6, 0x0C0, "gpy0"),
+ EXYNOS_PIN_BANK_EINTN(4, 0x0E0, "gpy1"),
+ EXYNOS_PIN_BANK_EINTN(6, 0x100, "gpy2"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x120, "gpy3"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x140, "gpy4"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x160, "gpy5"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x180, "gpy6"),
+};
+
+/* pin banks of exynos5420 pin-controller 2 */
+static const struct samsung_pin_bank_data exynos5420_pin_banks2[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpe0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(2, 0x020, "gpe1", 0x04),
+ EXYNOS_PIN_BANK_EINTG(6, 0x040, "gpf0", 0x08),
+ EXYNOS_PIN_BANK_EINTG(8, 0x060, "gpf1", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x080, "gpg0", 0x10),
+ EXYNOS_PIN_BANK_EINTG(8, 0x0A0, "gpg1", 0x14),
+ EXYNOS_PIN_BANK_EINTG(2, 0x0C0, "gpg2", 0x18),
+ EXYNOS_PIN_BANK_EINTG(4, 0x0E0, "gpj4", 0x1c),
+};
+
+/* pin banks of exynos5420 pin-controller 3 */
+static const struct samsung_pin_bank_data exynos5420_pin_banks3[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpa0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(6, 0x020, "gpa1", 0x04),
+ EXYNOS_PIN_BANK_EINTG(8, 0x040, "gpa2", 0x08),
+ EXYNOS_PIN_BANK_EINTG(5, 0x060, "gpb0", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(5, 0x080, "gpb1", 0x10),
+ EXYNOS_PIN_BANK_EINTG(4, 0x0A0, "gpb2", 0x14),
+ EXYNOS_PIN_BANK_EINTG(8, 0x0C0, "gpb3", 0x18),
+ EXYNOS_PIN_BANK_EINTG(2, 0x0E0, "gpb4", 0x1c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x100, "gph0", 0x20),
+};
+
+/* pin banks of exynos5420 pin-controller 4 */
+static const struct samsung_pin_bank_data exynos5420_pin_banks4[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(7, 0x000, "gpz", 0x00),
+};
+
+/* PMU pad retention groups registers for Exynos5420 (without audio) */
+static const u32 exynos5420_retention_regs[] = {
+ EXYNOS_PAD_RET_DRAM_OPTION,
+ EXYNOS_PAD_RET_JTAG_OPTION,
+ EXYNOS5420_PAD_RET_GPIO_OPTION,
+ EXYNOS5420_PAD_RET_UART_OPTION,
+ EXYNOS5420_PAD_RET_MMCA_OPTION,
+ EXYNOS5420_PAD_RET_MMCB_OPTION,
+ EXYNOS5420_PAD_RET_MMCC_OPTION,
+ EXYNOS5420_PAD_RET_HSI_OPTION,
+ EXYNOS_PAD_RET_EBIA_OPTION,
+ EXYNOS_PAD_RET_EBIB_OPTION,
+ EXYNOS5420_PAD_RET_SPI_OPTION,
+ EXYNOS5420_PAD_RET_DRAM_COREBLK_OPTION,
+};
+
+static const struct samsung_retention_data exynos5420_retention_data __initconst = {
+ .regs = exynos5420_retention_regs,
+ .nr_regs = ARRAY_SIZE(exynos5420_retention_regs),
+ .value = EXYNOS_WAKEUP_FROM_LOWPWR,
+ .refcnt = &exynos_shared_retention_refcnt,
+ .init = exynos_retention_init,
+};
+
+/*
+ * Samsung pinctrl driver data for Exynos5420 SoC. Exynos5420 SoC includes
+ * four gpio/pin-mux/pinconfig controllers.
+ */
+static const struct samsung_pin_ctrl exynos5420_pin_ctrl[] __initconst = {
+ {
+ /* pin-controller instance 0 data */
+ .pin_banks = exynos5420_pin_banks0,
+ .nr_banks = ARRAY_SIZE(exynos5420_pin_banks0),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .eint_wkup_init = exynos_eint_wkup_init,
+ .retention_data = &exynos5420_retention_data,
+ }, {
+ /* pin-controller instance 1 data */
+ .pin_banks = exynos5420_pin_banks1,
+ .nr_banks = ARRAY_SIZE(exynos5420_pin_banks1),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .retention_data = &exynos5420_retention_data,
+ }, {
+ /* pin-controller instance 2 data */
+ .pin_banks = exynos5420_pin_banks2,
+ .nr_banks = ARRAY_SIZE(exynos5420_pin_banks2),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .retention_data = &exynos5420_retention_data,
+ }, {
+ /* pin-controller instance 3 data */
+ .pin_banks = exynos5420_pin_banks3,
+ .nr_banks = ARRAY_SIZE(exynos5420_pin_banks3),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .retention_data = &exynos5420_retention_data,
+ }, {
+ /* pin-controller instance 4 data */
+ .pin_banks = exynos5420_pin_banks4,
+ .nr_banks = ARRAY_SIZE(exynos5420_pin_banks4),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .retention_data = &exynos4_audio_retention_data,
+ },
+};
+
+const struct samsung_pinctrl_of_match_data exynos5420_of_data __initconst = {
+ .ctrl = exynos5420_pin_ctrl,
+ .num_ctrl = ARRAY_SIZE(exynos5420_pin_ctrl),
+};
diff --git a/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-exynos-arm64.c b/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-exynos-arm64.c
new file mode 100644
index 0000000..0ab88fc
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-exynos-arm64.c
@@ -0,0 +1,409 @@
+/*
+ * Exynos ARMv8 specific support for Samsung pinctrl/gpiolib driver
+ * with eint support.
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ * Copyright (c) 2012 Linaro Ltd
+ * http://www.linaro.org
+ * Copyright (c) 2017 Krzysztof Kozlowski <krzk@kernel.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This file contains the Samsung Exynos specific information required by the
+ * the Samsung pinctrl/gpiolib driver. It also includes the implementation of
+ * external gpio and wakeup interrupt support.
+ */
+
+#include <linux/slab.h>
+#include <linux/soc/samsung/exynos-regs-pmu.h>
+
+#include "pinctrl-samsung.h"
+#include "pinctrl-exynos.h"
+
+static const struct samsung_pin_bank_type bank_type_off = {
+ .fld_width = { 4, 1, 2, 2, 2, 2, },
+ .reg_offset = { 0x00, 0x04, 0x08, 0x0c, 0x10, 0x14, },
+};
+
+static const struct samsung_pin_bank_type bank_type_alive = {
+ .fld_width = { 4, 1, 2, 2, },
+ .reg_offset = { 0x00, 0x04, 0x08, 0x0c, },
+};
+
+/* Exynos5433 has the 4bit widths for PINCFG_TYPE_DRV bitfields. */
+static const struct samsung_pin_bank_type exynos5433_bank_type_off = {
+ .fld_width = { 4, 1, 2, 4, 2, 2, },
+ .reg_offset = { 0x00, 0x04, 0x08, 0x0c, 0x10, 0x14, },
+};
+
+static const struct samsung_pin_bank_type exynos5433_bank_type_alive = {
+ .fld_width = { 4, 1, 2, 4, },
+ .reg_offset = { 0x00, 0x04, 0x08, 0x0c, },
+};
+
+/* Pad retention control code for accessing PMU regmap */
+static atomic_t exynos_shared_retention_refcnt;
+
+/* pin banks of exynos5433 pin-controller - ALIVE */
+static const struct samsung_pin_bank_data exynos5433_pin_banks0[] __initconst = {
+ EXYNOS5433_PIN_BANK_EINTW(8, 0x000, "gpa0", 0x00),
+ EXYNOS5433_PIN_BANK_EINTW(8, 0x020, "gpa1", 0x04),
+ EXYNOS5433_PIN_BANK_EINTW(8, 0x040, "gpa2", 0x08),
+ EXYNOS5433_PIN_BANK_EINTW(8, 0x060, "gpa3", 0x0c),
+ EXYNOS5433_PIN_BANK_EINTW_EXT(8, 0x020, "gpf1", 0x1004, 1),
+ EXYNOS5433_PIN_BANK_EINTW_EXT(4, 0x040, "gpf2", 0x1008, 1),
+ EXYNOS5433_PIN_BANK_EINTW_EXT(4, 0x060, "gpf3", 0x100c, 1),
+ EXYNOS5433_PIN_BANK_EINTW_EXT(8, 0x080, "gpf4", 0x1010, 1),
+ EXYNOS5433_PIN_BANK_EINTW_EXT(8, 0x0a0, "gpf5", 0x1014, 1),
+};
+
+/* pin banks of exynos5433 pin-controller - AUD */
+static const struct samsung_pin_bank_data exynos5433_pin_banks1[] __initconst = {
+ EXYNOS5433_PIN_BANK_EINTG(7, 0x000, "gpz0", 0x00),
+ EXYNOS5433_PIN_BANK_EINTG(4, 0x020, "gpz1", 0x04),
+};
+
+/* pin banks of exynos5433 pin-controller - CPIF */
+static const struct samsung_pin_bank_data exynos5433_pin_banks2[] __initconst = {
+ EXYNOS5433_PIN_BANK_EINTG(2, 0x000, "gpv6", 0x00),
+};
+
+/* pin banks of exynos5433 pin-controller - eSE */
+static const struct samsung_pin_bank_data exynos5433_pin_banks3[] __initconst = {
+ EXYNOS5433_PIN_BANK_EINTG(3, 0x000, "gpj2", 0x00),
+};
+
+/* pin banks of exynos5433 pin-controller - FINGER */
+static const struct samsung_pin_bank_data exynos5433_pin_banks4[] __initconst = {
+ EXYNOS5433_PIN_BANK_EINTG(4, 0x000, "gpd5", 0x00),
+};
+
+/* pin banks of exynos5433 pin-controller - FSYS */
+static const struct samsung_pin_bank_data exynos5433_pin_banks5[] __initconst = {
+ EXYNOS5433_PIN_BANK_EINTG(6, 0x000, "gph1", 0x00),
+ EXYNOS5433_PIN_BANK_EINTG(7, 0x020, "gpr4", 0x04),
+ EXYNOS5433_PIN_BANK_EINTG(5, 0x040, "gpr0", 0x08),
+ EXYNOS5433_PIN_BANK_EINTG(8, 0x060, "gpr1", 0x0c),
+ EXYNOS5433_PIN_BANK_EINTG(2, 0x080, "gpr2", 0x10),
+ EXYNOS5433_PIN_BANK_EINTG(8, 0x0a0, "gpr3", 0x14),
+};
+
+/* pin banks of exynos5433 pin-controller - IMEM */
+static const struct samsung_pin_bank_data exynos5433_pin_banks6[] __initconst = {
+ EXYNOS5433_PIN_BANK_EINTG(8, 0x000, "gpf0", 0x00),
+};
+
+/* pin banks of exynos5433 pin-controller - NFC */
+static const struct samsung_pin_bank_data exynos5433_pin_banks7[] __initconst = {
+ EXYNOS5433_PIN_BANK_EINTG(3, 0x000, "gpj0", 0x00),
+};
+
+/* pin banks of exynos5433 pin-controller - PERIC */
+static const struct samsung_pin_bank_data exynos5433_pin_banks8[] __initconst = {
+ EXYNOS5433_PIN_BANK_EINTG(6, 0x000, "gpv7", 0x00),
+ EXYNOS5433_PIN_BANK_EINTG(5, 0x020, "gpb0", 0x04),
+ EXYNOS5433_PIN_BANK_EINTG(8, 0x040, "gpc0", 0x08),
+ EXYNOS5433_PIN_BANK_EINTG(2, 0x060, "gpc1", 0x0c),
+ EXYNOS5433_PIN_BANK_EINTG(6, 0x080, "gpc2", 0x10),
+ EXYNOS5433_PIN_BANK_EINTG(8, 0x0a0, "gpc3", 0x14),
+ EXYNOS5433_PIN_BANK_EINTG(2, 0x0c0, "gpg0", 0x18),
+ EXYNOS5433_PIN_BANK_EINTG(4, 0x0e0, "gpd0", 0x1c),
+ EXYNOS5433_PIN_BANK_EINTG(6, 0x100, "gpd1", 0x20),
+ EXYNOS5433_PIN_BANK_EINTG(8, 0x120, "gpd2", 0x24),
+ EXYNOS5433_PIN_BANK_EINTG(5, 0x140, "gpd4", 0x28),
+ EXYNOS5433_PIN_BANK_EINTG(2, 0x160, "gpd8", 0x2c),
+ EXYNOS5433_PIN_BANK_EINTG(7, 0x180, "gpd6", 0x30),
+ EXYNOS5433_PIN_BANK_EINTG(3, 0x1a0, "gpd7", 0x34),
+ EXYNOS5433_PIN_BANK_EINTG(5, 0x1c0, "gpg1", 0x38),
+ EXYNOS5433_PIN_BANK_EINTG(2, 0x1e0, "gpg2", 0x3c),
+ EXYNOS5433_PIN_BANK_EINTG(8, 0x200, "gpg3", 0x40),
+};
+
+/* pin banks of exynos5433 pin-controller - TOUCH */
+static const struct samsung_pin_bank_data exynos5433_pin_banks9[] __initconst = {
+ EXYNOS5433_PIN_BANK_EINTG(3, 0x000, "gpj1", 0x00),
+};
+
+/* PMU pin retention groups registers for Exynos5433 (without audio & fsys) */
+static const u32 exynos5433_retention_regs[] = {
+ EXYNOS5433_PAD_RETENTION_TOP_OPTION,
+ EXYNOS5433_PAD_RETENTION_UART_OPTION,
+ EXYNOS5433_PAD_RETENTION_EBIA_OPTION,
+ EXYNOS5433_PAD_RETENTION_EBIB_OPTION,
+ EXYNOS5433_PAD_RETENTION_SPI_OPTION,
+ EXYNOS5433_PAD_RETENTION_MIF_OPTION,
+ EXYNOS5433_PAD_RETENTION_USBXTI_OPTION,
+ EXYNOS5433_PAD_RETENTION_BOOTLDO_OPTION,
+ EXYNOS5433_PAD_RETENTION_UFS_OPTION,
+ EXYNOS5433_PAD_RETENTION_FSYSGENIO_OPTION,
+};
+
+static const struct samsung_retention_data exynos5433_retention_data __initconst = {
+ .regs = exynos5433_retention_regs,
+ .nr_regs = ARRAY_SIZE(exynos5433_retention_regs),
+ .value = EXYNOS_WAKEUP_FROM_LOWPWR,
+ .refcnt = &exynos_shared_retention_refcnt,
+ .init = exynos_retention_init,
+};
+
+/* PMU retention control for audio pins can be tied to audio pin bank */
+static const u32 exynos5433_audio_retention_regs[] = {
+ EXYNOS5433_PAD_RETENTION_AUD_OPTION,
+};
+
+static const struct samsung_retention_data exynos5433_audio_retention_data __initconst = {
+ .regs = exynos5433_audio_retention_regs,
+ .nr_regs = ARRAY_SIZE(exynos5433_audio_retention_regs),
+ .value = EXYNOS_WAKEUP_FROM_LOWPWR,
+ .init = exynos_retention_init,
+};
+
+/* PMU retention control for mmc pins can be tied to fsys pin bank */
+static const u32 exynos5433_fsys_retention_regs[] = {
+ EXYNOS5433_PAD_RETENTION_MMC0_OPTION,
+ EXYNOS5433_PAD_RETENTION_MMC1_OPTION,
+ EXYNOS5433_PAD_RETENTION_MMC2_OPTION,
+};
+
+static const struct samsung_retention_data exynos5433_fsys_retention_data __initconst = {
+ .regs = exynos5433_fsys_retention_regs,
+ .nr_regs = ARRAY_SIZE(exynos5433_fsys_retention_regs),
+ .value = EXYNOS_WAKEUP_FROM_LOWPWR,
+ .init = exynos_retention_init,
+};
+
+/*
+ * Samsung pinctrl driver data for Exynos5433 SoC. Exynos5433 SoC includes
+ * ten gpio/pin-mux/pinconfig controllers.
+ */
+static const struct samsung_pin_ctrl exynos5433_pin_ctrl[] __initconst = {
+ {
+ /* pin-controller instance 0 data */
+ .pin_banks = exynos5433_pin_banks0,
+ .nr_banks = ARRAY_SIZE(exynos5433_pin_banks0),
+ .eint_wkup_init = exynos_eint_wkup_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ .nr_ext_resources = 1,
+ .retention_data = &exynos5433_retention_data,
+ }, {
+ /* pin-controller instance 1 data */
+ .pin_banks = exynos5433_pin_banks1,
+ .nr_banks = ARRAY_SIZE(exynos5433_pin_banks1),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ .retention_data = &exynos5433_audio_retention_data,
+ }, {
+ /* pin-controller instance 2 data */
+ .pin_banks = exynos5433_pin_banks2,
+ .nr_banks = ARRAY_SIZE(exynos5433_pin_banks2),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ .retention_data = &exynos5433_retention_data,
+ }, {
+ /* pin-controller instance 3 data */
+ .pin_banks = exynos5433_pin_banks3,
+ .nr_banks = ARRAY_SIZE(exynos5433_pin_banks3),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ .retention_data = &exynos5433_retention_data,
+ }, {
+ /* pin-controller instance 4 data */
+ .pin_banks = exynos5433_pin_banks4,
+ .nr_banks = ARRAY_SIZE(exynos5433_pin_banks4),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ .retention_data = &exynos5433_retention_data,
+ }, {
+ /* pin-controller instance 5 data */
+ .pin_banks = exynos5433_pin_banks5,
+ .nr_banks = ARRAY_SIZE(exynos5433_pin_banks5),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ .retention_data = &exynos5433_fsys_retention_data,
+ }, {
+ /* pin-controller instance 6 data */
+ .pin_banks = exynos5433_pin_banks6,
+ .nr_banks = ARRAY_SIZE(exynos5433_pin_banks6),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ .retention_data = &exynos5433_retention_data,
+ }, {
+ /* pin-controller instance 7 data */
+ .pin_banks = exynos5433_pin_banks7,
+ .nr_banks = ARRAY_SIZE(exynos5433_pin_banks7),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ .retention_data = &exynos5433_retention_data,
+ }, {
+ /* pin-controller instance 8 data */
+ .pin_banks = exynos5433_pin_banks8,
+ .nr_banks = ARRAY_SIZE(exynos5433_pin_banks8),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ .retention_data = &exynos5433_retention_data,
+ }, {
+ /* pin-controller instance 9 data */
+ .pin_banks = exynos5433_pin_banks9,
+ .nr_banks = ARRAY_SIZE(exynos5433_pin_banks9),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
+ .retention_data = &exynos5433_retention_data,
+ },
+};
+
+const struct samsung_pinctrl_of_match_data exynos5433_of_data __initconst = {
+ .ctrl = exynos5433_pin_ctrl,
+ .num_ctrl = ARRAY_SIZE(exynos5433_pin_ctrl),
+};
+
+/* pin banks of exynos7 pin-controller - ALIVE */
+static const struct samsung_pin_bank_data exynos7_pin_banks0[] __initconst = {
+ EXYNOS_PIN_BANK_EINTW(8, 0x000, "gpa0", 0x00),
+ EXYNOS_PIN_BANK_EINTW(8, 0x020, "gpa1", 0x04),
+ EXYNOS_PIN_BANK_EINTW(8, 0x040, "gpa2", 0x08),
+ EXYNOS_PIN_BANK_EINTW(8, 0x060, "gpa3", 0x0c),
+};
+
+/* pin banks of exynos7 pin-controller - BUS0 */
+static const struct samsung_pin_bank_data exynos7_pin_banks1[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(5, 0x000, "gpb0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(8, 0x020, "gpc0", 0x04),
+ EXYNOS_PIN_BANK_EINTG(2, 0x040, "gpc1", 0x08),
+ EXYNOS_PIN_BANK_EINTG(6, 0x060, "gpc2", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x080, "gpc3", 0x10),
+ EXYNOS_PIN_BANK_EINTG(4, 0x0a0, "gpd0", 0x14),
+ EXYNOS_PIN_BANK_EINTG(6, 0x0c0, "gpd1", 0x18),
+ EXYNOS_PIN_BANK_EINTG(8, 0x0e0, "gpd2", 0x1c),
+ EXYNOS_PIN_BANK_EINTG(5, 0x100, "gpd4", 0x20),
+ EXYNOS_PIN_BANK_EINTG(4, 0x120, "gpd5", 0x24),
+ EXYNOS_PIN_BANK_EINTG(6, 0x140, "gpd6", 0x28),
+ EXYNOS_PIN_BANK_EINTG(3, 0x160, "gpd7", 0x2c),
+ EXYNOS_PIN_BANK_EINTG(2, 0x180, "gpd8", 0x30),
+ EXYNOS_PIN_BANK_EINTG(2, 0x1a0, "gpg0", 0x34),
+ EXYNOS_PIN_BANK_EINTG(4, 0x1c0, "gpg3", 0x38),
+};
+
+/* pin banks of exynos7 pin-controller - NFC */
+static const struct samsung_pin_bank_data exynos7_pin_banks2[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(3, 0x000, "gpj0", 0x00),
+};
+
+/* pin banks of exynos7 pin-controller - TOUCH */
+static const struct samsung_pin_bank_data exynos7_pin_banks3[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(3, 0x000, "gpj1", 0x00),
+};
+
+/* pin banks of exynos7 pin-controller - FF */
+static const struct samsung_pin_bank_data exynos7_pin_banks4[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(4, 0x000, "gpg4", 0x00),
+};
+
+/* pin banks of exynos7 pin-controller - ESE */
+static const struct samsung_pin_bank_data exynos7_pin_banks5[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(5, 0x000, "gpv7", 0x00),
+};
+
+/* pin banks of exynos7 pin-controller - FSYS0 */
+static const struct samsung_pin_bank_data exynos7_pin_banks6[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(7, 0x000, "gpr4", 0x00),
+};
+
+/* pin banks of exynos7 pin-controller - FSYS1 */
+static const struct samsung_pin_bank_data exynos7_pin_banks7[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(4, 0x000, "gpr0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(8, 0x020, "gpr1", 0x04),
+ EXYNOS_PIN_BANK_EINTG(5, 0x040, "gpr2", 0x08),
+ EXYNOS_PIN_BANK_EINTG(8, 0x060, "gpr3", 0x0c),
+};
+
+/* pin banks of exynos7 pin-controller - BUS1 */
+static const struct samsung_pin_bank_data exynos7_pin_banks8[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(8, 0x020, "gpf0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(8, 0x040, "gpf1", 0x04),
+ EXYNOS_PIN_BANK_EINTG(4, 0x060, "gpf2", 0x08),
+ EXYNOS_PIN_BANK_EINTG(5, 0x080, "gpf3", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x0a0, "gpf4", 0x10),
+ EXYNOS_PIN_BANK_EINTG(8, 0x0c0, "gpf5", 0x14),
+ EXYNOS_PIN_BANK_EINTG(5, 0x0e0, "gpg1", 0x18),
+ EXYNOS_PIN_BANK_EINTG(5, 0x100, "gpg2", 0x1c),
+ EXYNOS_PIN_BANK_EINTG(6, 0x120, "gph1", 0x20),
+ EXYNOS_PIN_BANK_EINTG(3, 0x140, "gpv6", 0x24),
+};
+
+static const struct samsung_pin_bank_data exynos7_pin_banks9[] __initconst = {
+ EXYNOS_PIN_BANK_EINTG(7, 0x000, "gpz0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(4, 0x020, "gpz1", 0x04),
+};
+
+static const struct samsung_pin_ctrl exynos7_pin_ctrl[] __initconst = {
+ {
+ /* pin-controller instance 0 Alive data */
+ .pin_banks = exynos7_pin_banks0,
+ .nr_banks = ARRAY_SIZE(exynos7_pin_banks0),
+ .eint_wkup_init = exynos_eint_wkup_init,
+ }, {
+ /* pin-controller instance 1 BUS0 data */
+ .pin_banks = exynos7_pin_banks1,
+ .nr_banks = ARRAY_SIZE(exynos7_pin_banks1),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ }, {
+ /* pin-controller instance 2 NFC data */
+ .pin_banks = exynos7_pin_banks2,
+ .nr_banks = ARRAY_SIZE(exynos7_pin_banks2),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ }, {
+ /* pin-controller instance 3 TOUCH data */
+ .pin_banks = exynos7_pin_banks3,
+ .nr_banks = ARRAY_SIZE(exynos7_pin_banks3),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ }, {
+ /* pin-controller instance 4 FF data */
+ .pin_banks = exynos7_pin_banks4,
+ .nr_banks = ARRAY_SIZE(exynos7_pin_banks4),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ }, {
+ /* pin-controller instance 5 ESE data */
+ .pin_banks = exynos7_pin_banks5,
+ .nr_banks = ARRAY_SIZE(exynos7_pin_banks5),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ }, {
+ /* pin-controller instance 6 FSYS0 data */
+ .pin_banks = exynos7_pin_banks6,
+ .nr_banks = ARRAY_SIZE(exynos7_pin_banks6),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ }, {
+ /* pin-controller instance 7 FSYS1 data */
+ .pin_banks = exynos7_pin_banks7,
+ .nr_banks = ARRAY_SIZE(exynos7_pin_banks7),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ }, {
+ /* pin-controller instance 8 BUS1 data */
+ .pin_banks = exynos7_pin_banks8,
+ .nr_banks = ARRAY_SIZE(exynos7_pin_banks8),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ }, {
+ /* pin-controller instance 9 AUD data */
+ .pin_banks = exynos7_pin_banks9,
+ .nr_banks = ARRAY_SIZE(exynos7_pin_banks9),
+ .eint_gpio_init = exynos_eint_gpio_init,
+ },
+};
+
+const struct samsung_pinctrl_of_match_data exynos7_of_data __initconst = {
+ .ctrl = exynos7_pin_ctrl,
+ .num_ctrl = ARRAY_SIZE(exynos7_pin_ctrl),
+};
diff --git a/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-exynos.c b/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-exynos.c
new file mode 100644
index 0000000..6925a3d
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-exynos.c
@@ -0,0 +1,672 @@
+/*
+ * Exynos specific support for Samsung pinctrl/gpiolib driver with eint support.
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ * Copyright (c) 2012 Linaro Ltd
+ * http://www.linaro.org
+ *
+ * Author: Thomas Abraham <thomas.ab@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This file contains the Samsung Exynos specific information required by the
+ * the Samsung pinctrl/gpiolib driver. It also includes the implementation of
+ * external gpio and wakeup interrupt support.
+ */
+
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/irqdomain.h>
+#include <linux/irq.h>
+#include <linux/irqchip/chained_irq.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/regmap.h>
+#include <linux/err.h>
+#include <linux/soc/samsung/exynos-pmu.h>
+
+#include <dt-bindings/pinctrl/samsung.h>
+
+#include "pinctrl-samsung.h"
+#include "pinctrl-exynos.h"
+
+struct exynos_irq_chip {
+ struct irq_chip chip;
+
+ u32 eint_con;
+ u32 eint_mask;
+ u32 eint_pend;
+};
+
+static inline struct exynos_irq_chip *to_exynos_irq_chip(struct irq_chip *chip)
+{
+ return container_of(chip, struct exynos_irq_chip, chip);
+}
+
+static void exynos_irq_mask(struct irq_data *irqd)
+{
+ struct irq_chip *chip = irq_data_get_irq_chip(irqd);
+ struct exynos_irq_chip *our_chip = to_exynos_irq_chip(chip);
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
+ unsigned long reg_mask = our_chip->eint_mask + bank->eint_offset;
+ unsigned long mask;
+ unsigned long flags;
+
+ spin_lock_irqsave(&bank->slock, flags);
+
+ mask = readl(bank->eint_base + reg_mask);
+ mask |= 1 << irqd->hwirq;
+ writel(mask, bank->eint_base + reg_mask);
+
+ spin_unlock_irqrestore(&bank->slock, flags);
+}
+
+static void exynos_irq_ack(struct irq_data *irqd)
+{
+ struct irq_chip *chip = irq_data_get_irq_chip(irqd);
+ struct exynos_irq_chip *our_chip = to_exynos_irq_chip(chip);
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
+ unsigned long reg_pend = our_chip->eint_pend + bank->eint_offset;
+
+ writel(1 << irqd->hwirq, bank->eint_base + reg_pend);
+}
+
+static void exynos_irq_unmask(struct irq_data *irqd)
+{
+ struct irq_chip *chip = irq_data_get_irq_chip(irqd);
+ struct exynos_irq_chip *our_chip = to_exynos_irq_chip(chip);
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
+ unsigned long reg_mask = our_chip->eint_mask + bank->eint_offset;
+ unsigned long mask;
+ unsigned long flags;
+
+ /*
+ * Ack level interrupts right before unmask
+ *
+ * If we don't do this we'll get a double-interrupt. Level triggered
+ * interrupts must not fire an interrupt if the level is not
+ * _currently_ active, even if it was active while the interrupt was
+ * masked.
+ */
+ if (irqd_get_trigger_type(irqd) & IRQ_TYPE_LEVEL_MASK)
+ exynos_irq_ack(irqd);
+
+ spin_lock_irqsave(&bank->slock, flags);
+
+ mask = readl(bank->eint_base + reg_mask);
+ mask &= ~(1 << irqd->hwirq);
+ writel(mask, bank->eint_base + reg_mask);
+
+ spin_unlock_irqrestore(&bank->slock, flags);
+}
+
+static int exynos_irq_set_type(struct irq_data *irqd, unsigned int type)
+{
+ struct irq_chip *chip = irq_data_get_irq_chip(irqd);
+ struct exynos_irq_chip *our_chip = to_exynos_irq_chip(chip);
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
+ unsigned int shift = EXYNOS_EINT_CON_LEN * irqd->hwirq;
+ unsigned int con, trig_type;
+ unsigned long reg_con = our_chip->eint_con + bank->eint_offset;
+
+ switch (type) {
+ case IRQ_TYPE_EDGE_RISING:
+ trig_type = EXYNOS_EINT_EDGE_RISING;
+ break;
+ case IRQ_TYPE_EDGE_FALLING:
+ trig_type = EXYNOS_EINT_EDGE_FALLING;
+ break;
+ case IRQ_TYPE_EDGE_BOTH:
+ trig_type = EXYNOS_EINT_EDGE_BOTH;
+ break;
+ case IRQ_TYPE_LEVEL_HIGH:
+ trig_type = EXYNOS_EINT_LEVEL_HIGH;
+ break;
+ case IRQ_TYPE_LEVEL_LOW:
+ trig_type = EXYNOS_EINT_LEVEL_LOW;
+ break;
+ default:
+ pr_err("unsupported external interrupt type\n");
+ return -EINVAL;
+ }
+
+ if (type & IRQ_TYPE_EDGE_BOTH)
+ irq_set_handler_locked(irqd, handle_edge_irq);
+ else
+ irq_set_handler_locked(irqd, handle_level_irq);
+
+ con = readl(bank->eint_base + reg_con);
+ con &= ~(EXYNOS_EINT_CON_MASK << shift);
+ con |= trig_type << shift;
+ writel(con, bank->eint_base + reg_con);
+
+ return 0;
+}
+
+static int exynos_irq_request_resources(struct irq_data *irqd)
+{
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
+ const struct samsung_pin_bank_type *bank_type = bank->type;
+ unsigned long reg_con, flags;
+ unsigned int shift, mask, con;
+ int ret;
+
+ ret = gpiochip_lock_as_irq(&bank->gpio_chip, irqd->hwirq);
+ if (ret) {
+ dev_err(bank->gpio_chip.parent,
+ "unable to lock pin %s-%lu IRQ\n",
+ bank->name, irqd->hwirq);
+ return ret;
+ }
+
+ reg_con = bank->pctl_offset + bank_type->reg_offset[PINCFG_TYPE_FUNC];
+ shift = irqd->hwirq * bank_type->fld_width[PINCFG_TYPE_FUNC];
+ mask = (1 << bank_type->fld_width[PINCFG_TYPE_FUNC]) - 1;
+
+ spin_lock_irqsave(&bank->slock, flags);
+
+ con = readl(bank->pctl_base + reg_con);
+ con &= ~(mask << shift);
+ con |= EXYNOS_PIN_FUNC_EINT << shift;
+ writel(con, bank->pctl_base + reg_con);
+
+ spin_unlock_irqrestore(&bank->slock, flags);
+
+ return 0;
+}
+
+static void exynos_irq_release_resources(struct irq_data *irqd)
+{
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
+ const struct samsung_pin_bank_type *bank_type = bank->type;
+ unsigned long reg_con, flags;
+ unsigned int shift, mask, con;
+
+ reg_con = bank->pctl_offset + bank_type->reg_offset[PINCFG_TYPE_FUNC];
+ shift = irqd->hwirq * bank_type->fld_width[PINCFG_TYPE_FUNC];
+ mask = (1 << bank_type->fld_width[PINCFG_TYPE_FUNC]) - 1;
+
+ spin_lock_irqsave(&bank->slock, flags);
+
+ con = readl(bank->pctl_base + reg_con);
+ con &= ~(mask << shift);
+ con |= EXYNOS_PIN_FUNC_INPUT << shift;
+ writel(con, bank->pctl_base + reg_con);
+
+ spin_unlock_irqrestore(&bank->slock, flags);
+
+ gpiochip_unlock_as_irq(&bank->gpio_chip, irqd->hwirq);
+}
+
+/*
+ * irq_chip for gpio interrupts.
+ */
+static struct exynos_irq_chip exynos_gpio_irq_chip = {
+ .chip = {
+ .name = "exynos_gpio_irq_chip",
+ .irq_unmask = exynos_irq_unmask,
+ .irq_mask = exynos_irq_mask,
+ .irq_ack = exynos_irq_ack,
+ .irq_set_type = exynos_irq_set_type,
+ .irq_request_resources = exynos_irq_request_resources,
+ .irq_release_resources = exynos_irq_release_resources,
+ },
+ .eint_con = EXYNOS_GPIO_ECON_OFFSET,
+ .eint_mask = EXYNOS_GPIO_EMASK_OFFSET,
+ .eint_pend = EXYNOS_GPIO_EPEND_OFFSET,
+};
+
+static int exynos_eint_irq_map(struct irq_domain *h, unsigned int virq,
+ irq_hw_number_t hw)
+{
+ struct samsung_pin_bank *b = h->host_data;
+
+ irq_set_chip_data(virq, b);
+ irq_set_chip_and_handler(virq, &b->irq_chip->chip,
+ handle_level_irq);
+ return 0;
+}
+
+/*
+ * irq domain callbacks for external gpio and wakeup interrupt controllers.
+ */
+static const struct irq_domain_ops exynos_eint_irqd_ops = {
+ .map = exynos_eint_irq_map,
+ .xlate = irq_domain_xlate_twocell,
+};
+
+static irqreturn_t exynos_eint_gpio_irq(int irq, void *data)
+{
+ struct samsung_pinctrl_drv_data *d = data;
+ struct samsung_pin_bank *bank = d->pin_banks;
+ unsigned int svc, group, pin, virq;
+
+ svc = readl(bank->eint_base + EXYNOS_SVC_OFFSET);
+ group = EXYNOS_SVC_GROUP(svc);
+ pin = svc & EXYNOS_SVC_NUM_MASK;
+
+ if (!group)
+ return IRQ_HANDLED;
+ bank += (group - 1);
+
+ virq = irq_linear_revmap(bank->irq_domain, pin);
+ if (!virq)
+ return IRQ_NONE;
+ generic_handle_irq(virq);
+ return IRQ_HANDLED;
+}
+
+struct exynos_eint_gpio_save {
+ u32 eint_con;
+ u32 eint_fltcon0;
+ u32 eint_fltcon1;
+ u32 eint_mask;
+};
+
+/*
+ * exynos_eint_gpio_init() - setup handling of external gpio interrupts.
+ * @d: driver data of samsung pinctrl driver.
+ */
+int exynos_eint_gpio_init(struct samsung_pinctrl_drv_data *d)
+{
+ struct samsung_pin_bank *bank;
+ struct device *dev = d->dev;
+ int ret;
+ int i;
+
+ if (!d->irq) {
+ dev_err(dev, "irq number not available\n");
+ return -EINVAL;
+ }
+
+ ret = devm_request_irq(dev, d->irq, exynos_eint_gpio_irq,
+ 0, dev_name(dev), d);
+ if (ret) {
+ dev_err(dev, "irq request failed\n");
+ return -ENXIO;
+ }
+
+ bank = d->pin_banks;
+ for (i = 0; i < d->nr_banks; ++i, ++bank) {
+ if (bank->eint_type != EINT_TYPE_GPIO)
+ continue;
+ bank->irq_domain = irq_domain_add_linear(bank->of_node,
+ bank->nr_pins, &exynos_eint_irqd_ops, bank);
+ if (!bank->irq_domain) {
+ dev_err(dev, "gpio irq domain add failed\n");
+ ret = -ENXIO;
+ goto err_domains;
+ }
+
+ bank->soc_priv = devm_kzalloc(d->dev,
+ sizeof(struct exynos_eint_gpio_save), GFP_KERNEL);
+ if (!bank->soc_priv) {
+ irq_domain_remove(bank->irq_domain);
+ ret = -ENOMEM;
+ goto err_domains;
+ }
+
+ bank->irq_chip = &exynos_gpio_irq_chip;
+ }
+
+ return 0;
+
+err_domains:
+ for (--i, --bank; i >= 0; --i, --bank) {
+ if (bank->eint_type != EINT_TYPE_GPIO)
+ continue;
+ irq_domain_remove(bank->irq_domain);
+ }
+
+ return ret;
+}
+
+static u32 exynos_eint_wake_mask = 0xffffffff;
+
+u32 exynos_get_eint_wake_mask(void)
+{
+ return exynos_eint_wake_mask;
+}
+
+static int exynos_wkup_irq_set_wake(struct irq_data *irqd, unsigned int on)
+{
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
+ unsigned long bit = 1UL << (2 * bank->eint_offset + irqd->hwirq);
+
+ pr_info("wake %s for irq %d\n", on ? "enabled" : "disabled", irqd->irq);
+
+ if (!on)
+ exynos_eint_wake_mask |= bit;
+ else
+ exynos_eint_wake_mask &= ~bit;
+
+ return 0;
+}
+
+/*
+ * irq_chip for wakeup interrupts
+ */
+static const struct exynos_irq_chip exynos4210_wkup_irq_chip __initconst = {
+ .chip = {
+ .name = "exynos4210_wkup_irq_chip",
+ .irq_unmask = exynos_irq_unmask,
+ .irq_mask = exynos_irq_mask,
+ .irq_ack = exynos_irq_ack,
+ .irq_set_type = exynos_irq_set_type,
+ .irq_set_wake = exynos_wkup_irq_set_wake,
+ .irq_request_resources = exynos_irq_request_resources,
+ .irq_release_resources = exynos_irq_release_resources,
+ },
+ .eint_con = EXYNOS_WKUP_ECON_OFFSET,
+ .eint_mask = EXYNOS_WKUP_EMASK_OFFSET,
+ .eint_pend = EXYNOS_WKUP_EPEND_OFFSET,
+};
+
+static const struct exynos_irq_chip exynos7_wkup_irq_chip __initconst = {
+ .chip = {
+ .name = "exynos7_wkup_irq_chip",
+ .irq_unmask = exynos_irq_unmask,
+ .irq_mask = exynos_irq_mask,
+ .irq_ack = exynos_irq_ack,
+ .irq_set_type = exynos_irq_set_type,
+ .irq_set_wake = exynos_wkup_irq_set_wake,
+ .irq_request_resources = exynos_irq_request_resources,
+ .irq_release_resources = exynos_irq_release_resources,
+ },
+ .eint_con = EXYNOS7_WKUP_ECON_OFFSET,
+ .eint_mask = EXYNOS7_WKUP_EMASK_OFFSET,
+ .eint_pend = EXYNOS7_WKUP_EPEND_OFFSET,
+};
+
+/* list of external wakeup controllers supported */
+static const struct of_device_id exynos_wkup_irq_ids[] = {
+ { .compatible = "samsung,exynos4210-wakeup-eint",
+ .data = &exynos4210_wkup_irq_chip },
+ { .compatible = "samsung,exynos7-wakeup-eint",
+ .data = &exynos7_wkup_irq_chip },
+ { }
+};
+
+/* interrupt handler for wakeup interrupts 0..15 */
+static void exynos_irq_eint0_15(struct irq_desc *desc)
+{
+ struct exynos_weint_data *eintd = irq_desc_get_handler_data(desc);
+ struct samsung_pin_bank *bank = eintd->bank;
+ struct irq_chip *chip = irq_desc_get_chip(desc);
+ int eint_irq;
+
+ chained_irq_enter(chip, desc);
+
+ eint_irq = irq_linear_revmap(bank->irq_domain, eintd->irq);
+ generic_handle_irq(eint_irq);
+
+ chained_irq_exit(chip, desc);
+}
+
+static inline void exynos_irq_demux_eint(unsigned long pend,
+ struct irq_domain *domain)
+{
+ unsigned int irq;
+
+ while (pend) {
+ irq = fls(pend) - 1;
+ generic_handle_irq(irq_find_mapping(domain, irq));
+ pend &= ~(1 << irq);
+ }
+}
+
+/* interrupt handler for wakeup interrupt 16 */
+static void exynos_irq_demux_eint16_31(struct irq_desc *desc)
+{
+ struct irq_chip *chip = irq_desc_get_chip(desc);
+ struct exynos_muxed_weint_data *eintd = irq_desc_get_handler_data(desc);
+ unsigned long pend;
+ unsigned long mask;
+ int i;
+
+ chained_irq_enter(chip, desc);
+
+ for (i = 0; i < eintd->nr_banks; ++i) {
+ struct samsung_pin_bank *b = eintd->banks[i];
+ pend = readl(b->eint_base + b->irq_chip->eint_pend
+ + b->eint_offset);
+ mask = readl(b->eint_base + b->irq_chip->eint_mask
+ + b->eint_offset);
+ exynos_irq_demux_eint(pend & ~mask, b->irq_domain);
+ }
+
+ chained_irq_exit(chip, desc);
+}
+
+/*
+ * exynos_eint_wkup_init() - setup handling of external wakeup interrupts.
+ * @d: driver data of samsung pinctrl driver.
+ */
+int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
+{
+ struct device *dev = d->dev;
+ struct device_node *wkup_np = NULL;
+ struct device_node *np;
+ struct samsung_pin_bank *bank;
+ struct exynos_weint_data *weint_data;
+ struct exynos_muxed_weint_data *muxed_data;
+ struct exynos_irq_chip *irq_chip;
+ unsigned int muxed_banks = 0;
+ unsigned int i;
+ int idx, irq;
+
+ for_each_child_of_node(dev->of_node, np) {
+ const struct of_device_id *match;
+
+ match = of_match_node(exynos_wkup_irq_ids, np);
+ if (match) {
+ irq_chip = kmemdup(match->data,
+ sizeof(*irq_chip), GFP_KERNEL);
+ if (!irq_chip) {
+ of_node_put(np);
+ return -ENOMEM;
+ }
+ wkup_np = np;
+ break;
+ }
+ }
+ if (!wkup_np)
+ return -ENODEV;
+
+ bank = d->pin_banks;
+ for (i = 0; i < d->nr_banks; ++i, ++bank) {
+ if (bank->eint_type != EINT_TYPE_WKUP)
+ continue;
+
+ bank->irq_domain = irq_domain_add_linear(bank->of_node,
+ bank->nr_pins, &exynos_eint_irqd_ops, bank);
+ if (!bank->irq_domain) {
+ dev_err(dev, "wkup irq domain add failed\n");
+ return -ENXIO;
+ }
+
+ bank->irq_chip = irq_chip;
+
+ if (!of_find_property(bank->of_node, "interrupts", NULL)) {
+ bank->eint_type = EINT_TYPE_WKUP_MUX;
+ ++muxed_banks;
+ continue;
+ }
+
+ weint_data = devm_kzalloc(dev, bank->nr_pins
+ * sizeof(*weint_data), GFP_KERNEL);
+ if (!weint_data)
+ return -ENOMEM;
+
+ for (idx = 0; idx < bank->nr_pins; ++idx) {
+ irq = irq_of_parse_and_map(bank->of_node, idx);
+ if (!irq) {
+ dev_err(dev, "irq number for eint-%s-%d not found\n",
+ bank->name, idx);
+ continue;
+ }
+ weint_data[idx].irq = idx;
+ weint_data[idx].bank = bank;
+ irq_set_chained_handler_and_data(irq,
+ exynos_irq_eint0_15,
+ &weint_data[idx]);
+ }
+ }
+
+ if (!muxed_banks)
+ return 0;
+
+ irq = irq_of_parse_and_map(wkup_np, 0);
+ if (!irq) {
+ dev_err(dev, "irq number for muxed EINTs not found\n");
+ return 0;
+ }
+
+ muxed_data = devm_kzalloc(dev, sizeof(*muxed_data)
+ + muxed_banks*sizeof(struct samsung_pin_bank *), GFP_KERNEL);
+ if (!muxed_data)
+ return -ENOMEM;
+
+ irq_set_chained_handler_and_data(irq, exynos_irq_demux_eint16_31,
+ muxed_data);
+
+ bank = d->pin_banks;
+ idx = 0;
+ for (i = 0; i < d->nr_banks; ++i, ++bank) {
+ if (bank->eint_type != EINT_TYPE_WKUP_MUX)
+ continue;
+
+ muxed_data->banks[idx++] = bank;
+ }
+ muxed_data->nr_banks = muxed_banks;
+
+ return 0;
+}
+
+static void exynos_pinctrl_suspend_bank(
+ struct samsung_pinctrl_drv_data *drvdata,
+ struct samsung_pin_bank *bank)
+{
+ struct exynos_eint_gpio_save *save = bank->soc_priv;
+ void __iomem *regs = bank->eint_base;
+
+ save->eint_con = readl(regs + EXYNOS_GPIO_ECON_OFFSET
+ + bank->eint_offset);
+ save->eint_fltcon0 = readl(regs + EXYNOS_GPIO_EFLTCON_OFFSET
+ + 2 * bank->eint_offset);
+ save->eint_fltcon1 = readl(regs + EXYNOS_GPIO_EFLTCON_OFFSET
+ + 2 * bank->eint_offset + 4);
+ save->eint_mask = readl(regs + bank->irq_chip->eint_mask
+ + bank->eint_offset);
+
+ pr_debug("%s: save con %#010x\n", bank->name, save->eint_con);
+ pr_debug("%s: save fltcon0 %#010x\n", bank->name, save->eint_fltcon0);
+ pr_debug("%s: save fltcon1 %#010x\n", bank->name, save->eint_fltcon1);
+ pr_debug("%s: save mask %#010x\n", bank->name, save->eint_mask);
+}
+
+void exynos_pinctrl_suspend(struct samsung_pinctrl_drv_data *drvdata)
+{
+ struct samsung_pin_bank *bank = drvdata->pin_banks;
+ int i;
+
+ for (i = 0; i < drvdata->nr_banks; ++i, ++bank)
+ if (bank->eint_type == EINT_TYPE_GPIO)
+ exynos_pinctrl_suspend_bank(drvdata, bank);
+}
+
+static void exynos_pinctrl_resume_bank(
+ struct samsung_pinctrl_drv_data *drvdata,
+ struct samsung_pin_bank *bank)
+{
+ struct exynos_eint_gpio_save *save = bank->soc_priv;
+ void __iomem *regs = bank->eint_base;
+
+ pr_debug("%s: con %#010x => %#010x\n", bank->name,
+ readl(regs + EXYNOS_GPIO_ECON_OFFSET
+ + bank->eint_offset), save->eint_con);
+ pr_debug("%s: fltcon0 %#010x => %#010x\n", bank->name,
+ readl(regs + EXYNOS_GPIO_EFLTCON_OFFSET
+ + 2 * bank->eint_offset), save->eint_fltcon0);
+ pr_debug("%s: fltcon1 %#010x => %#010x\n", bank->name,
+ readl(regs + EXYNOS_GPIO_EFLTCON_OFFSET
+ + 2 * bank->eint_offset + 4), save->eint_fltcon1);
+ pr_debug("%s: mask %#010x => %#010x\n", bank->name,
+ readl(regs + bank->irq_chip->eint_mask
+ + bank->eint_offset), save->eint_mask);
+
+ writel(save->eint_con, regs + EXYNOS_GPIO_ECON_OFFSET
+ + bank->eint_offset);
+ writel(save->eint_fltcon0, regs + EXYNOS_GPIO_EFLTCON_OFFSET
+ + 2 * bank->eint_offset);
+ writel(save->eint_fltcon1, regs + EXYNOS_GPIO_EFLTCON_OFFSET
+ + 2 * bank->eint_offset + 4);
+ writel(save->eint_mask, regs + bank->irq_chip->eint_mask
+ + bank->eint_offset);
+}
+
+void exynos_pinctrl_resume(struct samsung_pinctrl_drv_data *drvdata)
+{
+ struct samsung_pin_bank *bank = drvdata->pin_banks;
+ int i;
+
+ for (i = 0; i < drvdata->nr_banks; ++i, ++bank)
+ if (bank->eint_type == EINT_TYPE_GPIO)
+ exynos_pinctrl_resume_bank(drvdata, bank);
+}
+
+static void exynos_retention_enable(struct samsung_pinctrl_drv_data *drvdata)
+{
+ if (drvdata->retention_ctrl->refcnt)
+ atomic_inc(drvdata->retention_ctrl->refcnt);
+}
+
+static void exynos_retention_disable(struct samsung_pinctrl_drv_data *drvdata)
+{
+ struct samsung_retention_ctrl *ctrl = drvdata->retention_ctrl;
+ struct regmap *pmu_regs = ctrl->priv;
+ int i;
+
+ if (ctrl->refcnt && !atomic_dec_and_test(ctrl->refcnt))
+ return;
+
+ for (i = 0; i < ctrl->nr_regs; i++)
+ regmap_write(pmu_regs, ctrl->regs[i], ctrl->value);
+}
+
+struct samsung_retention_ctrl *
+exynos_retention_init(struct samsung_pinctrl_drv_data *drvdata,
+ const struct samsung_retention_data *data)
+{
+ struct samsung_retention_ctrl *ctrl;
+ struct regmap *pmu_regs;
+ int i;
+
+ ctrl = devm_kzalloc(drvdata->dev, sizeof(*ctrl), GFP_KERNEL);
+ if (!ctrl)
+ return ERR_PTR(-ENOMEM);
+
+ pmu_regs = exynos_get_pmu_regmap();
+ if (IS_ERR(pmu_regs))
+ return ERR_CAST(pmu_regs);
+
+ ctrl->priv = pmu_regs;
+ ctrl->regs = data->regs;
+ ctrl->nr_regs = data->nr_regs;
+ ctrl->value = data->value;
+ ctrl->refcnt = data->refcnt;
+ ctrl->enable = exynos_retention_enable;
+ ctrl->disable = exynos_retention_disable;
+
+ /* Ensure that retention is disabled on driver init */
+ for (i = 0; i < ctrl->nr_regs; i++)
+ regmap_write(pmu_regs, ctrl->regs[i], ctrl->value);
+
+ return ctrl;
+}
diff --git a/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-exynos.h b/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-exynos.h
new file mode 100644
index 0000000..7639b92
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-exynos.h
@@ -0,0 +1,145 @@
+/*
+ * Exynos specific definitions for Samsung pinctrl and gpiolib driver.
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ * Copyright (c) 2012 Linaro Ltd
+ * http://www.linaro.org
+ *
+ * This file contains the Exynos specific definitions for the Samsung
+ * pinctrl/gpiolib interface drivers.
+ *
+ * Author: Thomas Abraham <thomas.ab@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __PINCTRL_SAMSUNG_EXYNOS_H
+#define __PINCTRL_SAMSUNG_EXYNOS_H
+
+/* External GPIO and wakeup interrupt related definitions */
+#define EXYNOS_GPIO_ECON_OFFSET 0x700
+#define EXYNOS_GPIO_EFLTCON_OFFSET 0x800
+#define EXYNOS_GPIO_EMASK_OFFSET 0x900
+#define EXYNOS_GPIO_EPEND_OFFSET 0xA00
+#define EXYNOS_WKUP_ECON_OFFSET 0xE00
+#define EXYNOS_WKUP_EMASK_OFFSET 0xF00
+#define EXYNOS_WKUP_EPEND_OFFSET 0xF40
+#define EXYNOS7_WKUP_ECON_OFFSET 0x700
+#define EXYNOS7_WKUP_EMASK_OFFSET 0x900
+#define EXYNOS7_WKUP_EPEND_OFFSET 0xA00
+#define EXYNOS_SVC_OFFSET 0xB08
+
+/* helpers to access interrupt service register */
+#define EXYNOS_SVC_GROUP_SHIFT 3
+#define EXYNOS_SVC_GROUP_MASK 0x1f
+#define EXYNOS_SVC_NUM_MASK 7
+#define EXYNOS_SVC_GROUP(x) ((x >> EXYNOS_SVC_GROUP_SHIFT) & \
+ EXYNOS_SVC_GROUP_MASK)
+
+/* Exynos specific external interrupt trigger types */
+#define EXYNOS_EINT_LEVEL_LOW 0
+#define EXYNOS_EINT_LEVEL_HIGH 1
+#define EXYNOS_EINT_EDGE_FALLING 2
+#define EXYNOS_EINT_EDGE_RISING 3
+#define EXYNOS_EINT_EDGE_BOTH 4
+#define EXYNOS_EINT_CON_MASK 0xF
+#define EXYNOS_EINT_CON_LEN 4
+
+#define EXYNOS_EINT_MAX_PER_BANK 8
+#define EXYNOS_EINT_NR_WKUP_EINT
+
+#define EXYNOS_PIN_BANK_EINTN(pins, reg, id) \
+ { \
+ .type = &bank_type_off, \
+ .pctl_offset = reg, \
+ .nr_pins = pins, \
+ .eint_type = EINT_TYPE_NONE, \
+ .name = id \
+ }
+
+#define EXYNOS_PIN_BANK_EINTG(pins, reg, id, offs) \
+ { \
+ .type = &bank_type_off, \
+ .pctl_offset = reg, \
+ .nr_pins = pins, \
+ .eint_type = EINT_TYPE_GPIO, \
+ .eint_offset = offs, \
+ .name = id \
+ }
+
+#define EXYNOS_PIN_BANK_EINTW(pins, reg, id, offs) \
+ { \
+ .type = &bank_type_alive, \
+ .pctl_offset = reg, \
+ .nr_pins = pins, \
+ .eint_type = EINT_TYPE_WKUP, \
+ .eint_offset = offs, \
+ .name = id \
+ }
+
+#define EXYNOS5433_PIN_BANK_EINTG(pins, reg, id, offs) \
+ { \
+ .type = &exynos5433_bank_type_off, \
+ .pctl_offset = reg, \
+ .nr_pins = pins, \
+ .eint_type = EINT_TYPE_GPIO, \
+ .eint_offset = offs, \
+ .name = id \
+ }
+
+#define EXYNOS5433_PIN_BANK_EINTW(pins, reg, id, offs) \
+ { \
+ .type = &exynos5433_bank_type_alive, \
+ .pctl_offset = reg, \
+ .nr_pins = pins, \
+ .eint_type = EINT_TYPE_WKUP, \
+ .eint_offset = offs, \
+ .name = id \
+ }
+
+#define EXYNOS5433_PIN_BANK_EINTW_EXT(pins, reg, id, offs, pctl_idx) \
+ { \
+ .type = &exynos5433_bank_type_alive, \
+ .pctl_offset = reg, \
+ .nr_pins = pins, \
+ .eint_type = EINT_TYPE_WKUP, \
+ .eint_offset = offs, \
+ .name = id, \
+ .pctl_res_idx = pctl_idx, \
+ } \
+
+/**
+ * struct exynos_weint_data: irq specific data for all the wakeup interrupts
+ * generated by the external wakeup interrupt controller.
+ * @irq: interrupt number within the domain.
+ * @bank: bank responsible for this interrupt
+ */
+struct exynos_weint_data {
+ unsigned int irq;
+ struct samsung_pin_bank *bank;
+};
+
+/**
+ * struct exynos_muxed_weint_data: irq specific data for muxed wakeup interrupts
+ * generated by the external wakeup interrupt controller.
+ * @nr_banks: count of banks being part of the mux
+ * @banks: array of banks being part of the mux
+ */
+struct exynos_muxed_weint_data {
+ unsigned int nr_banks;
+ struct samsung_pin_bank *banks[];
+};
+
+int exynos_eint_gpio_init(struct samsung_pinctrl_drv_data *d);
+int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d);
+void exynos_pinctrl_suspend(struct samsung_pinctrl_drv_data *drvdata);
+void exynos_pinctrl_resume(struct samsung_pinctrl_drv_data *drvdata);
+struct samsung_retention_ctrl *
+exynos_retention_init(struct samsung_pinctrl_drv_data *drvdata,
+ const struct samsung_retention_data *data);
+
+#endif /* __PINCTRL_SAMSUNG_EXYNOS_H */
diff --git a/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-exynos5440.c b/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-exynos5440.c
new file mode 100644
index 0000000..32a3a9f
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-exynos5440.c
@@ -0,0 +1,1010 @@
+/*
+ * pin-controller/pin-mux/pin-config/gpio-driver for Samsung's EXYNOS5440 SoC.
+ *
+ * Author: Thomas Abraham <thomas.ab@samsung.com>
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/err.h>
+#include <linux/gpio/driver.h>
+#include <linux/device.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/interrupt.h>
+#include <linux/irqdomain.h>
+#include <linux/of_irq.h>
+#include "../core.h"
+
+/* EXYNOS5440 GPIO and Pinctrl register offsets */
+#define GPIO_MUX 0x00
+#define GPIO_IE 0x04
+#define GPIO_INT 0x08
+#define GPIO_TYPE 0x0C
+#define GPIO_VAL 0x10
+#define GPIO_OE 0x14
+#define GPIO_IN 0x18
+#define GPIO_PE 0x1C
+#define GPIO_PS 0x20
+#define GPIO_SR 0x24
+#define GPIO_DS0 0x28
+#define GPIO_DS1 0x2C
+
+#define EXYNOS5440_MAX_PINS 23
+#define EXYNOS5440_MAX_GPIO_INT 8
+#define PIN_NAME_LENGTH 10
+
+#define GROUP_SUFFIX "-grp"
+#define FUNCTION_SUFFIX "-mux"
+
+/*
+ * pin configuration type and its value are packed together into a 16-bits.
+ * The upper 8-bits represent the configuration type and the lower 8-bits
+ * hold the value of the configuration type.
+ */
+#define PINCFG_TYPE_MASK 0xFF
+#define PINCFG_VALUE_SHIFT 8
+#define PINCFG_VALUE_MASK (0xFF << PINCFG_VALUE_SHIFT)
+#define PINCFG_PACK(type, value) (((value) << PINCFG_VALUE_SHIFT) | type)
+#define PINCFG_UNPACK_TYPE(cfg) ((cfg) & PINCFG_TYPE_MASK)
+#define PINCFG_UNPACK_VALUE(cfg) (((cfg) & PINCFG_VALUE_MASK) >> \
+ PINCFG_VALUE_SHIFT)
+
+/**
+ * enum pincfg_type - possible pin configuration types supported.
+ * @PINCFG_TYPE_PUD: Pull up/down configuration.
+ * @PINCFG_TYPE_DRV: Drive strength configuration.
+ * @PINCFG_TYPE_SKEW_RATE: Skew rate configuration.
+ * @PINCFG_TYPE_INPUT_TYPE: Pin input type configuration.
+ */
+enum pincfg_type {
+ PINCFG_TYPE_PUD,
+ PINCFG_TYPE_DRV,
+ PINCFG_TYPE_SKEW_RATE,
+ PINCFG_TYPE_INPUT_TYPE
+};
+
+/**
+ * struct exynos5440_pin_group: represent group of pins for pincfg setting.
+ * @name: name of the pin group, used to lookup the group.
+ * @pins: the pins included in this group.
+ * @num_pins: number of pins included in this group.
+ */
+struct exynos5440_pin_group {
+ const char *name;
+ const unsigned int *pins;
+ u8 num_pins;
+};
+
+/**
+ * struct exynos5440_pmx_func: represent a pin function.
+ * @name: name of the pin function, used to lookup the function.
+ * @groups: one or more names of pin groups that provide this function.
+ * @num_groups: number of groups included in @groups.
+ * @function: the function number to be programmed when selected.
+ */
+struct exynos5440_pmx_func {
+ const char *name;
+ const char **groups;
+ u8 num_groups;
+ unsigned long function;
+};
+
+/**
+ * struct exynos5440_pinctrl_priv_data: driver's private runtime data.
+ * @reg_base: ioremapped based address of the register space.
+ * @gc: gpio chip registered with gpiolib.
+ * @pin_groups: list of pin groups parsed from device tree.
+ * @nr_groups: number of pin groups available.
+ * @pmx_functions: list of pin functions parsed from device tree.
+ * @nr_functions: number of pin functions available.
+ * @range: gpio range to register with pinctrl
+ */
+struct exynos5440_pinctrl_priv_data {
+ void __iomem *reg_base;
+ struct gpio_chip *gc;
+ struct irq_domain *irq_domain;
+
+ const struct exynos5440_pin_group *pin_groups;
+ unsigned int nr_groups;
+ const struct exynos5440_pmx_func *pmx_functions;
+ unsigned int nr_functions;
+ struct pinctrl_gpio_range range;
+};
+
+/**
+ * struct exynos5440_gpio_intr_data: private data for gpio interrupts.
+ * @priv: driver's private runtime data.
+ * @gpio_int: gpio interrupt number.
+ */
+struct exynos5440_gpio_intr_data {
+ struct exynos5440_pinctrl_priv_data *priv;
+ unsigned int gpio_int;
+};
+
+/* list of all possible config options supported */
+static struct pin_config {
+ char *prop_cfg;
+ unsigned int cfg_type;
+} pcfgs[] = {
+ { "samsung,exynos5440-pin-pud", PINCFG_TYPE_PUD },
+ { "samsung,exynos5440-pin-drv", PINCFG_TYPE_DRV },
+ { "samsung,exynos5440-pin-skew-rate", PINCFG_TYPE_SKEW_RATE },
+ { "samsung,exynos5440-pin-input-type", PINCFG_TYPE_INPUT_TYPE },
+};
+
+/* check if the selector is a valid pin group selector */
+static int exynos5440_get_group_count(struct pinctrl_dev *pctldev)
+{
+ struct exynos5440_pinctrl_priv_data *priv;
+
+ priv = pinctrl_dev_get_drvdata(pctldev);
+ return priv->nr_groups;
+}
+
+/* return the name of the group selected by the group selector */
+static const char *exynos5440_get_group_name(struct pinctrl_dev *pctldev,
+ unsigned selector)
+{
+ struct exynos5440_pinctrl_priv_data *priv;
+
+ priv = pinctrl_dev_get_drvdata(pctldev);
+ return priv->pin_groups[selector].name;
+}
+
+/* return the pin numbers associated with the specified group */
+static int exynos5440_get_group_pins(struct pinctrl_dev *pctldev,
+ unsigned selector, const unsigned **pins, unsigned *num_pins)
+{
+ struct exynos5440_pinctrl_priv_data *priv;
+
+ priv = pinctrl_dev_get_drvdata(pctldev);
+ *pins = priv->pin_groups[selector].pins;
+ *num_pins = priv->pin_groups[selector].num_pins;
+ return 0;
+}
+
+/* create pinctrl_map entries by parsing device tree nodes */
+static int exynos5440_dt_node_to_map(struct pinctrl_dev *pctldev,
+ struct device_node *np, struct pinctrl_map **maps,
+ unsigned *nmaps)
+{
+ struct device *dev = pctldev->dev;
+ struct pinctrl_map *map;
+ unsigned long *cfg = NULL;
+ char *gname, *fname;
+ int cfg_cnt = 0, map_cnt = 0, idx = 0;
+
+ /* count the number of config options specfied in the node */
+ for (idx = 0; idx < ARRAY_SIZE(pcfgs); idx++)
+ if (of_find_property(np, pcfgs[idx].prop_cfg, NULL))
+ cfg_cnt++;
+
+ /*
+ * Find out the number of map entries to create. All the config options
+ * can be accomadated into a single config map entry.
+ */
+ if (cfg_cnt)
+ map_cnt = 1;
+ if (of_find_property(np, "samsung,exynos5440-pin-function", NULL))
+ map_cnt++;
+ if (!map_cnt) {
+ dev_err(dev, "node %s does not have either config or function "
+ "configurations\n", np->name);
+ return -EINVAL;
+ }
+
+ /* Allocate memory for pin-map entries */
+ map = kzalloc(sizeof(*map) * map_cnt, GFP_KERNEL);
+ if (!map)
+ return -ENOMEM;
+ *nmaps = 0;
+
+ /*
+ * Allocate memory for pin group name. The pin group name is derived
+ * from the node name from which these map entries are be created.
+ */
+ gname = kasprintf(GFP_KERNEL, "%s%s", np->name, GROUP_SUFFIX);
+ if (!gname)
+ goto free_map;
+
+ /*
+ * don't have config options? then skip over to creating function
+ * map entries.
+ */
+ if (!cfg_cnt)
+ goto skip_cfgs;
+
+ /* Allocate memory for config entries */
+ cfg = kzalloc(sizeof(*cfg) * cfg_cnt, GFP_KERNEL);
+ if (!cfg)
+ goto free_gname;
+
+ /* Prepare a list of config settings */
+ for (idx = 0, cfg_cnt = 0; idx < ARRAY_SIZE(pcfgs); idx++) {
+ u32 value;
+ if (!of_property_read_u32(np, pcfgs[idx].prop_cfg, &value))
+ cfg[cfg_cnt++] =
+ PINCFG_PACK(pcfgs[idx].cfg_type, value);
+ }
+
+ /* create the config map entry */
+ map[*nmaps].data.configs.group_or_pin = gname;
+ map[*nmaps].data.configs.configs = cfg;
+ map[*nmaps].data.configs.num_configs = cfg_cnt;
+ map[*nmaps].type = PIN_MAP_TYPE_CONFIGS_GROUP;
+ *nmaps += 1;
+
+skip_cfgs:
+ /* create the function map entry */
+ if (of_find_property(np, "samsung,exynos5440-pin-function", NULL)) {
+ fname = kasprintf(GFP_KERNEL,
+ "%s%s", np->name, FUNCTION_SUFFIX);
+ if (!fname)
+ goto free_cfg;
+
+ map[*nmaps].data.mux.group = gname;
+ map[*nmaps].data.mux.function = fname;
+ map[*nmaps].type = PIN_MAP_TYPE_MUX_GROUP;
+ *nmaps += 1;
+ }
+
+ *maps = map;
+ return 0;
+
+free_cfg:
+ kfree(cfg);
+free_gname:
+ kfree(gname);
+free_map:
+ kfree(map);
+ return -ENOMEM;
+}
+
+/* free the memory allocated to hold the pin-map table */
+static void exynos5440_dt_free_map(struct pinctrl_dev *pctldev,
+ struct pinctrl_map *map, unsigned num_maps)
+{
+ int idx;
+
+ for (idx = 0; idx < num_maps; idx++) {
+ if (map[idx].type == PIN_MAP_TYPE_MUX_GROUP) {
+ kfree(map[idx].data.mux.function);
+ if (!idx)
+ kfree(map[idx].data.mux.group);
+ } else if (map->type == PIN_MAP_TYPE_CONFIGS_GROUP) {
+ kfree(map[idx].data.configs.configs);
+ if (!idx)
+ kfree(map[idx].data.configs.group_or_pin);
+ }
+ }
+
+ kfree(map);
+}
+
+/* list of pinctrl callbacks for the pinctrl core */
+static const struct pinctrl_ops exynos5440_pctrl_ops = {
+ .get_groups_count = exynos5440_get_group_count,
+ .get_group_name = exynos5440_get_group_name,
+ .get_group_pins = exynos5440_get_group_pins,
+ .dt_node_to_map = exynos5440_dt_node_to_map,
+ .dt_free_map = exynos5440_dt_free_map,
+};
+
+/* check if the selector is a valid pin function selector */
+static int exynos5440_get_functions_count(struct pinctrl_dev *pctldev)
+{
+ struct exynos5440_pinctrl_priv_data *priv;
+
+ priv = pinctrl_dev_get_drvdata(pctldev);
+ return priv->nr_functions;
+}
+
+/* return the name of the pin function specified */
+static const char *exynos5440_pinmux_get_fname(struct pinctrl_dev *pctldev,
+ unsigned selector)
+{
+ struct exynos5440_pinctrl_priv_data *priv;
+
+ priv = pinctrl_dev_get_drvdata(pctldev);
+ return priv->pmx_functions[selector].name;
+}
+
+/* return the groups associated for the specified function selector */
+static int exynos5440_pinmux_get_groups(struct pinctrl_dev *pctldev,
+ unsigned selector, const char * const **groups,
+ unsigned * const num_groups)
+{
+ struct exynos5440_pinctrl_priv_data *priv;
+
+ priv = pinctrl_dev_get_drvdata(pctldev);
+ *groups = priv->pmx_functions[selector].groups;
+ *num_groups = priv->pmx_functions[selector].num_groups;
+ return 0;
+}
+
+/* enable or disable a pinmux function */
+static void exynos5440_pinmux_setup(struct pinctrl_dev *pctldev, unsigned selector,
+ unsigned group, bool enable)
+{
+ struct exynos5440_pinctrl_priv_data *priv;
+ void __iomem *base;
+ u32 function;
+ u32 data;
+
+ priv = pinctrl_dev_get_drvdata(pctldev);
+ base = priv->reg_base;
+ function = priv->pmx_functions[selector].function;
+
+ data = readl(base + GPIO_MUX);
+ if (enable)
+ data |= (1 << function);
+ else
+ data &= ~(1 << function);
+ writel(data, base + GPIO_MUX);
+}
+
+/* enable a specified pinmux by writing to registers */
+static int exynos5440_pinmux_set_mux(struct pinctrl_dev *pctldev,
+ unsigned selector,
+ unsigned group)
+{
+ exynos5440_pinmux_setup(pctldev, selector, group, true);
+ return 0;
+}
+
+/*
+ * The calls to gpio_direction_output() and gpio_direction_input()
+ * leads to this function call (via the pinctrl_gpio_direction_{input|output}()
+ * function called from the gpiolib interface).
+ */
+static int exynos5440_pinmux_gpio_set_direction(struct pinctrl_dev *pctldev,
+ struct pinctrl_gpio_range *range, unsigned offset, bool input)
+{
+ return 0;
+}
+
+/* list of pinmux callbacks for the pinmux vertical in pinctrl core */
+static const struct pinmux_ops exynos5440_pinmux_ops = {
+ .get_functions_count = exynos5440_get_functions_count,
+ .get_function_name = exynos5440_pinmux_get_fname,
+ .get_function_groups = exynos5440_pinmux_get_groups,
+ .set_mux = exynos5440_pinmux_set_mux,
+ .gpio_set_direction = exynos5440_pinmux_gpio_set_direction,
+};
+
+/* set the pin config settings for a specified pin */
+static int exynos5440_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
+ unsigned long *configs,
+ unsigned num_configs)
+{
+ struct exynos5440_pinctrl_priv_data *priv;
+ void __iomem *base;
+ enum pincfg_type cfg_type;
+ u32 cfg_value;
+ u32 data;
+ int i;
+
+ priv = pinctrl_dev_get_drvdata(pctldev);
+ base = priv->reg_base;
+
+ for (i = 0; i < num_configs; i++) {
+ cfg_type = PINCFG_UNPACK_TYPE(configs[i]);
+ cfg_value = PINCFG_UNPACK_VALUE(configs[i]);
+
+ switch (cfg_type) {
+ case PINCFG_TYPE_PUD:
+ /* first set pull enable/disable bit */
+ data = readl(base + GPIO_PE);
+ data &= ~(1 << pin);
+ if (cfg_value)
+ data |= (1 << pin);
+ writel(data, base + GPIO_PE);
+
+ /* then set pull up/down bit */
+ data = readl(base + GPIO_PS);
+ data &= ~(1 << pin);
+ if (cfg_value == 2)
+ data |= (1 << pin);
+ writel(data, base + GPIO_PS);
+ break;
+
+ case PINCFG_TYPE_DRV:
+ /* set the first bit of the drive strength */
+ data = readl(base + GPIO_DS0);
+ data &= ~(1 << pin);
+ data |= ((cfg_value & 1) << pin);
+ writel(data, base + GPIO_DS0);
+ cfg_value >>= 1;
+
+ /* set the second bit of the driver strength */
+ data = readl(base + GPIO_DS1);
+ data &= ~(1 << pin);
+ data |= ((cfg_value & 1) << pin);
+ writel(data, base + GPIO_DS1);
+ break;
+ case PINCFG_TYPE_SKEW_RATE:
+ data = readl(base + GPIO_SR);
+ data &= ~(1 << pin);
+ data |= ((cfg_value & 1) << pin);
+ writel(data, base + GPIO_SR);
+ break;
+ case PINCFG_TYPE_INPUT_TYPE:
+ data = readl(base + GPIO_TYPE);
+ data &= ~(1 << pin);
+ data |= ((cfg_value & 1) << pin);
+ writel(data, base + GPIO_TYPE);
+ break;
+ default:
+ WARN_ON(1);
+ return -EINVAL;
+ }
+ } /* for each config */
+
+ return 0;
+}
+
+/* get the pin config settings for a specified pin */
+static int exynos5440_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin,
+ unsigned long *config)
+{
+ struct exynos5440_pinctrl_priv_data *priv;
+ void __iomem *base;
+ enum pincfg_type cfg_type = PINCFG_UNPACK_TYPE(*config);
+ u32 data;
+
+ priv = pinctrl_dev_get_drvdata(pctldev);
+ base = priv->reg_base;
+
+ switch (cfg_type) {
+ case PINCFG_TYPE_PUD:
+ data = readl(base + GPIO_PE);
+ data = (data >> pin) & 1;
+ if (!data)
+ *config = 0;
+ else
+ *config = ((readl(base + GPIO_PS) >> pin) & 1) + 1;
+ break;
+ case PINCFG_TYPE_DRV:
+ data = readl(base + GPIO_DS0);
+ data = (data >> pin) & 1;
+ *config = data;
+ data = readl(base + GPIO_DS1);
+ data = (data >> pin) & 1;
+ *config |= (data << 1);
+ break;
+ case PINCFG_TYPE_SKEW_RATE:
+ data = readl(base + GPIO_SR);
+ *config = (data >> pin) & 1;
+ break;
+ case PINCFG_TYPE_INPUT_TYPE:
+ data = readl(base + GPIO_TYPE);
+ *config = (data >> pin) & 1;
+ break;
+ default:
+ WARN_ON(1);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/* set the pin config settings for a specified pin group */
+static int exynos5440_pinconf_group_set(struct pinctrl_dev *pctldev,
+ unsigned group, unsigned long *configs,
+ unsigned num_configs)
+{
+ struct exynos5440_pinctrl_priv_data *priv;
+ const unsigned int *pins;
+ unsigned int cnt;
+
+ priv = pinctrl_dev_get_drvdata(pctldev);
+ pins = priv->pin_groups[group].pins;
+
+ for (cnt = 0; cnt < priv->pin_groups[group].num_pins; cnt++)
+ exynos5440_pinconf_set(pctldev, pins[cnt], configs,
+ num_configs);
+
+ return 0;
+}
+
+/* get the pin config settings for a specified pin group */
+static int exynos5440_pinconf_group_get(struct pinctrl_dev *pctldev,
+ unsigned int group, unsigned long *config)
+{
+ struct exynos5440_pinctrl_priv_data *priv;
+ const unsigned int *pins;
+
+ priv = pinctrl_dev_get_drvdata(pctldev);
+ pins = priv->pin_groups[group].pins;
+ exynos5440_pinconf_get(pctldev, pins[0], config);
+ return 0;
+}
+
+/* list of pinconfig callbacks for pinconfig vertical in the pinctrl code */
+static const struct pinconf_ops exynos5440_pinconf_ops = {
+ .pin_config_get = exynos5440_pinconf_get,
+ .pin_config_set = exynos5440_pinconf_set,
+ .pin_config_group_get = exynos5440_pinconf_group_get,
+ .pin_config_group_set = exynos5440_pinconf_group_set,
+};
+
+/* gpiolib gpio_set callback function */
+static void exynos5440_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
+{
+ struct exynos5440_pinctrl_priv_data *priv = gpiochip_get_data(gc);
+ void __iomem *base = priv->reg_base;
+ u32 data;
+
+ data = readl(base + GPIO_VAL);
+ data &= ~(1 << offset);
+ if (value)
+ data |= 1 << offset;
+ writel(data, base + GPIO_VAL);
+}
+
+/* gpiolib gpio_get callback function */
+static int exynos5440_gpio_get(struct gpio_chip *gc, unsigned offset)
+{
+ struct exynos5440_pinctrl_priv_data *priv = gpiochip_get_data(gc);
+ void __iomem *base = priv->reg_base;
+ u32 data;
+
+ data = readl(base + GPIO_IN);
+ data >>= offset;
+ data &= 1;
+ return data;
+}
+
+/* gpiolib gpio_direction_input callback function */
+static int exynos5440_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
+{
+ struct exynos5440_pinctrl_priv_data *priv = gpiochip_get_data(gc);
+ void __iomem *base = priv->reg_base;
+ u32 data;
+
+ /* first disable the data output enable on this pin */
+ data = readl(base + GPIO_OE);
+ data &= ~(1 << offset);
+ writel(data, base + GPIO_OE);
+
+ /* now enable input on this pin */
+ data = readl(base + GPIO_IE);
+ data |= 1 << offset;
+ writel(data, base + GPIO_IE);
+ return 0;
+}
+
+/* gpiolib gpio_direction_output callback function */
+static int exynos5440_gpio_direction_output(struct gpio_chip *gc, unsigned offset,
+ int value)
+{
+ struct exynos5440_pinctrl_priv_data *priv = gpiochip_get_data(gc);
+ void __iomem *base = priv->reg_base;
+ u32 data;
+
+ exynos5440_gpio_set(gc, offset, value);
+
+ /* first disable the data input enable on this pin */
+ data = readl(base + GPIO_IE);
+ data &= ~(1 << offset);
+ writel(data, base + GPIO_IE);
+
+ /* now enable output on this pin */
+ data = readl(base + GPIO_OE);
+ data |= 1 << offset;
+ writel(data, base + GPIO_OE);
+ return 0;
+}
+
+/* gpiolib gpio_to_irq callback function */
+static int exynos5440_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
+{
+ struct exynos5440_pinctrl_priv_data *priv = gpiochip_get_data(gc);
+ unsigned int virq;
+
+ if (offset < 16 || offset > 23)
+ return -ENXIO;
+
+ if (!priv->irq_domain)
+ return -ENXIO;
+
+ virq = irq_create_mapping(priv->irq_domain, offset - 16);
+ return virq ? : -ENXIO;
+}
+
+/* parse the pin numbers listed in the 'samsung,exynos5440-pins' property */
+static int exynos5440_pinctrl_parse_dt_pins(struct platform_device *pdev,
+ struct device_node *cfg_np, unsigned int **pin_list,
+ unsigned int *npins)
+{
+ struct device *dev = &pdev->dev;
+ struct property *prop;
+
+ prop = of_find_property(cfg_np, "samsung,exynos5440-pins", NULL);
+ if (!prop)
+ return -ENOENT;
+
+ *npins = prop->length / sizeof(unsigned long);
+ if (!*npins) {
+ dev_err(dev, "invalid pin list in %s node", cfg_np->name);
+ return -EINVAL;
+ }
+
+ *pin_list = devm_kzalloc(dev, *npins * sizeof(**pin_list), GFP_KERNEL);
+ if (!*pin_list)
+ return -ENOMEM;
+
+ return of_property_read_u32_array(cfg_np, "samsung,exynos5440-pins",
+ *pin_list, *npins);
+}
+
+/*
+ * Parse the information about all the available pin groups and pin functions
+ * from device node of the pin-controller.
+ */
+static int exynos5440_pinctrl_parse_dt(struct platform_device *pdev,
+ struct exynos5440_pinctrl_priv_data *priv)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *dev_np = dev->of_node;
+ struct device_node *cfg_np;
+ struct exynos5440_pin_group *groups, *grp;
+ struct exynos5440_pmx_func *functions, *func;
+ unsigned *pin_list;
+ unsigned int npins, grp_cnt, func_idx = 0;
+ char *gname, *fname;
+ int ret;
+
+ grp_cnt = of_get_child_count(dev_np);
+ if (!grp_cnt)
+ return -EINVAL;
+
+ groups = devm_kzalloc(dev, grp_cnt * sizeof(*groups), GFP_KERNEL);
+ if (!groups)
+ return -EINVAL;
+
+ grp = groups;
+
+ functions = devm_kzalloc(dev, grp_cnt * sizeof(*functions), GFP_KERNEL);
+ if (!functions)
+ return -EINVAL;
+
+ func = functions;
+
+ /*
+ * Iterate over all the child nodes of the pin controller node
+ * and create pin groups and pin function lists.
+ */
+ for_each_child_of_node(dev_np, cfg_np) {
+ u32 function;
+
+ ret = exynos5440_pinctrl_parse_dt_pins(pdev, cfg_np,
+ &pin_list, &npins);
+ if (ret) {
+ gname = NULL;
+ goto skip_to_pin_function;
+ }
+
+ /* derive pin group name from the node name */
+ gname = devm_kasprintf(dev, GFP_KERNEL,
+ "%s%s", cfg_np->name, GROUP_SUFFIX);
+ if (!gname)
+ return -ENOMEM;
+
+ grp->name = gname;
+ grp->pins = pin_list;
+ grp->num_pins = npins;
+ grp++;
+
+skip_to_pin_function:
+ ret = of_property_read_u32(cfg_np, "samsung,exynos5440-pin-function",
+ &function);
+ if (ret)
+ continue;
+
+ /* derive function name from the node name */
+ fname = devm_kasprintf(dev, GFP_KERNEL,
+ "%s%s", cfg_np->name, FUNCTION_SUFFIX);
+ if (!fname)
+ return -ENOMEM;
+
+ func->name = fname;
+ func->groups = devm_kzalloc(dev, sizeof(char *), GFP_KERNEL);
+ if (!func->groups)
+ return -ENOMEM;
+ func->groups[0] = gname;
+ func->num_groups = gname ? 1 : 0;
+ func->function = function;
+ func++;
+ func_idx++;
+ }
+
+ priv->pin_groups = groups;
+ priv->nr_groups = grp_cnt;
+ priv->pmx_functions = functions;
+ priv->nr_functions = func_idx;
+ return 0;
+}
+
+/* register the pinctrl interface with the pinctrl subsystem */
+static int exynos5440_pinctrl_register(struct platform_device *pdev,
+ struct exynos5440_pinctrl_priv_data *priv)
+{
+ struct device *dev = &pdev->dev;
+ struct pinctrl_desc *ctrldesc;
+ struct pinctrl_dev *pctl_dev;
+ struct pinctrl_pin_desc *pindesc, *pdesc;
+ char *pin_names;
+ int pin, ret;
+
+ ctrldesc = devm_kzalloc(dev, sizeof(*ctrldesc), GFP_KERNEL);
+ if (!ctrldesc)
+ return -ENOMEM;
+
+ ctrldesc->name = "exynos5440-pinctrl";
+ ctrldesc->owner = THIS_MODULE;
+ ctrldesc->pctlops = &exynos5440_pctrl_ops;
+ ctrldesc->pmxops = &exynos5440_pinmux_ops;
+ ctrldesc->confops = &exynos5440_pinconf_ops;
+
+ pindesc = devm_kzalloc(&pdev->dev, sizeof(*pindesc) *
+ EXYNOS5440_MAX_PINS, GFP_KERNEL);
+ if (!pindesc)
+ return -ENOMEM;
+ ctrldesc->pins = pindesc;
+ ctrldesc->npins = EXYNOS5440_MAX_PINS;
+
+ /* dynamically populate the pin number and pin name for pindesc */
+ for (pin = 0, pdesc = pindesc; pin < ctrldesc->npins; pin++, pdesc++)
+ pdesc->number = pin;
+
+ /*
+ * allocate space for storing the dynamically generated names for all
+ * the pins which belong to this pin-controller.
+ */
+ pin_names = devm_kzalloc(&pdev->dev, sizeof(char) * PIN_NAME_LENGTH *
+ ctrldesc->npins, GFP_KERNEL);
+ if (!pin_names)
+ return -ENOMEM;
+
+ /* for each pin, set the name of the pin */
+ for (pin = 0; pin < ctrldesc->npins; pin++) {
+ snprintf(pin_names, 6, "gpio%02d", pin);
+ pdesc = pindesc + pin;
+ pdesc->name = pin_names;
+ pin_names += PIN_NAME_LENGTH;
+ }
+
+ ret = exynos5440_pinctrl_parse_dt(pdev, priv);
+ if (ret)
+ return ret;
+
+ pctl_dev = devm_pinctrl_register(&pdev->dev, ctrldesc, priv);
+ if (IS_ERR(pctl_dev)) {
+ dev_err(&pdev->dev, "could not register pinctrl driver\n");
+ return PTR_ERR(pctl_dev);
+ }
+
+ priv->range.name = "exynos5440-pctrl-gpio-range";
+ priv->range.id = 0;
+ priv->range.base = 0;
+ priv->range.npins = EXYNOS5440_MAX_PINS;
+ priv->range.gc = priv->gc;
+ pinctrl_add_gpio_range(pctl_dev, &priv->range);
+ return 0;
+}
+
+/* register the gpiolib interface with the gpiolib subsystem */
+static int exynos5440_gpiolib_register(struct platform_device *pdev,
+ struct exynos5440_pinctrl_priv_data *priv)
+{
+ struct gpio_chip *gc;
+ int ret;
+
+ gc = devm_kzalloc(&pdev->dev, sizeof(*gc), GFP_KERNEL);
+ if (!gc)
+ return -ENOMEM;
+
+ priv->gc = gc;
+ gc->base = 0;
+ gc->ngpio = EXYNOS5440_MAX_PINS;
+ gc->parent = &pdev->dev;
+ gc->set = exynos5440_gpio_set;
+ gc->get = exynos5440_gpio_get;
+ gc->direction_input = exynos5440_gpio_direction_input;
+ gc->direction_output = exynos5440_gpio_direction_output;
+ gc->to_irq = exynos5440_gpio_to_irq;
+ gc->label = "gpiolib-exynos5440";
+ gc->owner = THIS_MODULE;
+ ret = gpiochip_add_data(gc, priv);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to register gpio_chip %s, error "
+ "code: %d\n", gc->label, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+/* unregister the gpiolib interface with the gpiolib subsystem */
+static int exynos5440_gpiolib_unregister(struct platform_device *pdev,
+ struct exynos5440_pinctrl_priv_data *priv)
+{
+ gpiochip_remove(priv->gc);
+ return 0;
+}
+
+static void exynos5440_gpio_irq_unmask(struct irq_data *irqd)
+{
+ struct exynos5440_pinctrl_priv_data *d;
+ unsigned long gpio_int;
+
+ d = irq_data_get_irq_chip_data(irqd);
+ gpio_int = readl(d->reg_base + GPIO_INT);
+ gpio_int |= 1 << irqd->hwirq;
+ writel(gpio_int, d->reg_base + GPIO_INT);
+}
+
+static void exynos5440_gpio_irq_mask(struct irq_data *irqd)
+{
+ struct exynos5440_pinctrl_priv_data *d;
+ unsigned long gpio_int;
+
+ d = irq_data_get_irq_chip_data(irqd);
+ gpio_int = readl(d->reg_base + GPIO_INT);
+ gpio_int &= ~(1 << irqd->hwirq);
+ writel(gpio_int, d->reg_base + GPIO_INT);
+}
+
+/* irq_chip for gpio interrupts */
+static struct irq_chip exynos5440_gpio_irq_chip = {
+ .name = "exynos5440_gpio_irq_chip",
+ .irq_unmask = exynos5440_gpio_irq_unmask,
+ .irq_mask = exynos5440_gpio_irq_mask,
+};
+
+/* interrupt handler for GPIO interrupts 0..7 */
+static irqreturn_t exynos5440_gpio_irq(int irq, void *data)
+{
+ struct exynos5440_gpio_intr_data *intd = data;
+ struct exynos5440_pinctrl_priv_data *d = intd->priv;
+ int virq;
+
+ virq = irq_linear_revmap(d->irq_domain, intd->gpio_int);
+ if (!virq)
+ return IRQ_NONE;
+ generic_handle_irq(virq);
+ return IRQ_HANDLED;
+}
+
+static int exynos5440_gpio_irq_map(struct irq_domain *h, unsigned int virq,
+ irq_hw_number_t hw)
+{
+ struct exynos5440_pinctrl_priv_data *d = h->host_data;
+
+ irq_set_chip_data(virq, d);
+ irq_set_chip_and_handler(virq, &exynos5440_gpio_irq_chip,
+ handle_level_irq);
+ return 0;
+}
+
+/* irq domain callbacks for gpio interrupt controller */
+static const struct irq_domain_ops exynos5440_gpio_irqd_ops = {
+ .map = exynos5440_gpio_irq_map,
+ .xlate = irq_domain_xlate_twocell,
+};
+
+/* setup handling of gpio interrupts */
+static int exynos5440_gpio_irq_init(struct platform_device *pdev,
+ struct exynos5440_pinctrl_priv_data *priv)
+{
+ struct device *dev = &pdev->dev;
+ struct exynos5440_gpio_intr_data *intd;
+ int i, irq, ret;
+
+ intd = devm_kzalloc(dev, sizeof(*intd) * EXYNOS5440_MAX_GPIO_INT,
+ GFP_KERNEL);
+ if (!intd)
+ return -ENOMEM;
+
+ for (i = 0; i < EXYNOS5440_MAX_GPIO_INT; i++) {
+ irq = irq_of_parse_and_map(dev->of_node, i);
+ if (irq <= 0) {
+ dev_err(dev, "irq parsing failed\n");
+ return -EINVAL;
+ }
+
+ intd->gpio_int = i;
+ intd->priv = priv;
+ ret = devm_request_irq(dev, irq, exynos5440_gpio_irq,
+ 0, dev_name(dev), intd++);
+ if (ret) {
+ dev_err(dev, "irq request failed\n");
+ return -ENXIO;
+ }
+ }
+
+ priv->irq_domain = irq_domain_add_linear(dev->of_node,
+ EXYNOS5440_MAX_GPIO_INT,
+ &exynos5440_gpio_irqd_ops, priv);
+ if (!priv->irq_domain) {
+ dev_err(dev, "failed to create irq domain\n");
+ return -ENXIO;
+ }
+
+ return 0;
+}
+
+static int exynos5440_pinctrl_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct exynos5440_pinctrl_priv_data *priv;
+ struct resource *res;
+ int ret;
+
+ if (!dev->of_node) {
+ dev_err(dev, "device tree node not found\n");
+ return -ENODEV;
+ }
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ priv->reg_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(priv->reg_base))
+ return PTR_ERR(priv->reg_base);
+
+ ret = exynos5440_gpiolib_register(pdev, priv);
+ if (ret)
+ return ret;
+
+ ret = exynos5440_pinctrl_register(pdev, priv);
+ if (ret) {
+ exynos5440_gpiolib_unregister(pdev, priv);
+ return ret;
+ }
+
+ ret = exynos5440_gpio_irq_init(pdev, priv);
+ if (ret) {
+ dev_err(dev, "failed to setup gpio interrupts\n");
+ return ret;
+ }
+
+ platform_set_drvdata(pdev, priv);
+ dev_info(dev, "EXYNOS5440 pinctrl driver registered\n");
+ return 0;
+}
+
+static const struct of_device_id exynos5440_pinctrl_dt_match[] = {
+ { .compatible = "samsung,exynos5440-pinctrl" },
+ {},
+};
+
+static struct platform_driver exynos5440_pinctrl_driver = {
+ .probe = exynos5440_pinctrl_probe,
+ .driver = {
+ .name = "exynos5440-pinctrl",
+ .of_match_table = exynos5440_pinctrl_dt_match,
+ .suppress_bind_attrs = true,
+ },
+};
+
+static int __init exynos5440_pinctrl_drv_register(void)
+{
+ return platform_driver_register(&exynos5440_pinctrl_driver);
+}
+postcore_initcall(exynos5440_pinctrl_drv_register);
diff --git a/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-s3c24xx.c b/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-s3c24xx.c
new file mode 100644
index 0000000..46b1a9b
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-s3c24xx.c
@@ -0,0 +1,668 @@
+/*
+ * S3C24XX specific support for Samsung pinctrl/gpiolib driver.
+ *
+ * Copyright (c) 2013 Heiko Stuebner <heiko@sntech.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This file contains the SamsungS3C24XX specific information required by the
+ * Samsung pinctrl/gpiolib driver. It also includes the implementation of
+ * external gpio and wakeup interrupt support.
+ */
+
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/irqdomain.h>
+#include <linux/irq.h>
+#include <linux/of_irq.h>
+#include <linux/irqchip/chained_irq.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/err.h>
+
+#include "pinctrl-samsung.h"
+
+#define NUM_EINT 24
+#define NUM_EINT_IRQ 6
+#define EINT_MAX_PER_GROUP 8
+
+#define EINTPEND_REG 0xa8
+#define EINTMASK_REG 0xa4
+
+#define EINT_GROUP(i) ((int)((i) / EINT_MAX_PER_GROUP))
+#define EINT_REG(i) ((EINT_GROUP(i) * 4) + 0x88)
+#define EINT_OFFS(i) ((i) % EINT_MAX_PER_GROUP * 4)
+
+#define EINT_LEVEL_LOW 0
+#define EINT_LEVEL_HIGH 1
+#define EINT_EDGE_FALLING 2
+#define EINT_EDGE_RISING 4
+#define EINT_EDGE_BOTH 6
+#define EINT_MASK 0xf
+
+static const struct samsung_pin_bank_type bank_type_1bit = {
+ .fld_width = { 1, 1, },
+ .reg_offset = { 0x00, 0x04, },
+};
+
+static const struct samsung_pin_bank_type bank_type_2bit = {
+ .fld_width = { 2, 1, 2, },
+ .reg_offset = { 0x00, 0x04, 0x08, },
+};
+
+#define PIN_BANK_A(pins, reg, id) \
+ { \
+ .type = &bank_type_1bit, \
+ .pctl_offset = reg, \
+ .nr_pins = pins, \
+ .eint_type = EINT_TYPE_NONE, \
+ .name = id \
+ }
+
+#define PIN_BANK_2BIT(pins, reg, id) \
+ { \
+ .type = &bank_type_2bit, \
+ .pctl_offset = reg, \
+ .nr_pins = pins, \
+ .eint_type = EINT_TYPE_NONE, \
+ .name = id \
+ }
+
+#define PIN_BANK_2BIT_EINTW(pins, reg, id, eoffs, emask)\
+ { \
+ .type = &bank_type_2bit, \
+ .pctl_offset = reg, \
+ .nr_pins = pins, \
+ .eint_type = EINT_TYPE_WKUP, \
+ .eint_func = 2, \
+ .eint_mask = emask, \
+ .eint_offset = eoffs, \
+ .name = id \
+ }
+
+/**
+ * struct s3c24xx_eint_data: EINT common data
+ * @drvdata: pin controller driver data
+ * @domains: IRQ domains of particular EINT interrupts
+ * @parents: mapped parent irqs in the main interrupt controller
+ */
+struct s3c24xx_eint_data {
+ struct samsung_pinctrl_drv_data *drvdata;
+ struct irq_domain *domains[NUM_EINT];
+ int parents[NUM_EINT_IRQ];
+};
+
+/**
+ * struct s3c24xx_eint_domain_data: per irq-domain data
+ * @bank: pin bank related to the domain
+ * @eint_data: common data
+ * eint0_3_parent_only: live eints 0-3 only in the main intc
+ */
+struct s3c24xx_eint_domain_data {
+ struct samsung_pin_bank *bank;
+ struct s3c24xx_eint_data *eint_data;
+ bool eint0_3_parent_only;
+};
+
+static int s3c24xx_eint_get_trigger(unsigned int type)
+{
+ switch (type) {
+ case IRQ_TYPE_EDGE_RISING:
+ return EINT_EDGE_RISING;
+ break;
+ case IRQ_TYPE_EDGE_FALLING:
+ return EINT_EDGE_FALLING;
+ break;
+ case IRQ_TYPE_EDGE_BOTH:
+ return EINT_EDGE_BOTH;
+ break;
+ case IRQ_TYPE_LEVEL_HIGH:
+ return EINT_LEVEL_HIGH;
+ break;
+ case IRQ_TYPE_LEVEL_LOW:
+ return EINT_LEVEL_LOW;
+ break;
+ default:
+ return -EINVAL;
+ }
+}
+
+static void s3c24xx_eint_set_handler(struct irq_data *d, unsigned int type)
+{
+ /* Edge- and level-triggered interrupts need different handlers */
+ if (type & IRQ_TYPE_EDGE_BOTH)
+ irq_set_handler_locked(d, handle_edge_irq);
+ else
+ irq_set_handler_locked(d, handle_level_irq);
+}
+
+static void s3c24xx_eint_set_function(struct samsung_pinctrl_drv_data *d,
+ struct samsung_pin_bank *bank, int pin)
+{
+ const struct samsung_pin_bank_type *bank_type = bank->type;
+ unsigned long flags;
+ void __iomem *reg;
+ u8 shift;
+ u32 mask;
+ u32 val;
+
+ /* Make sure that pin is configured as interrupt */
+ reg = d->virt_base + bank->pctl_offset;
+ shift = pin * bank_type->fld_width[PINCFG_TYPE_FUNC];
+ mask = (1 << bank_type->fld_width[PINCFG_TYPE_FUNC]) - 1;
+
+ spin_lock_irqsave(&bank->slock, flags);
+
+ val = readl(reg);
+ val &= ~(mask << shift);
+ val |= bank->eint_func << shift;
+ writel(val, reg);
+
+ spin_unlock_irqrestore(&bank->slock, flags);
+}
+
+static int s3c24xx_eint_type(struct irq_data *data, unsigned int type)
+{
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
+ struct samsung_pinctrl_drv_data *d = bank->drvdata;
+ int index = bank->eint_offset + data->hwirq;
+ void __iomem *reg;
+ int trigger;
+ u8 shift;
+ u32 val;
+
+ trigger = s3c24xx_eint_get_trigger(type);
+ if (trigger < 0) {
+ dev_err(d->dev, "unsupported external interrupt type\n");
+ return -EINVAL;
+ }
+
+ s3c24xx_eint_set_handler(data, type);
+
+ /* Set up interrupt trigger */
+ reg = d->virt_base + EINT_REG(index);
+ shift = EINT_OFFS(index);
+
+ val = readl(reg);
+ val &= ~(EINT_MASK << shift);
+ val |= trigger << shift;
+ writel(val, reg);
+
+ s3c24xx_eint_set_function(d, bank, data->hwirq);
+
+ return 0;
+}
+
+/* Handling of EINTs 0-3 on all except S3C2412 and S3C2413 */
+
+static void s3c2410_eint0_3_ack(struct irq_data *data)
+{
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
+ struct s3c24xx_eint_domain_data *ddata = bank->irq_domain->host_data;
+ struct s3c24xx_eint_data *eint_data = ddata->eint_data;
+ int parent_irq = eint_data->parents[data->hwirq];
+ struct irq_chip *parent_chip = irq_get_chip(parent_irq);
+
+ parent_chip->irq_ack(irq_get_irq_data(parent_irq));
+}
+
+static void s3c2410_eint0_3_mask(struct irq_data *data)
+{
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
+ struct s3c24xx_eint_domain_data *ddata = bank->irq_domain->host_data;
+ struct s3c24xx_eint_data *eint_data = ddata->eint_data;
+ int parent_irq = eint_data->parents[data->hwirq];
+ struct irq_chip *parent_chip = irq_get_chip(parent_irq);
+
+ parent_chip->irq_mask(irq_get_irq_data(parent_irq));
+}
+
+static void s3c2410_eint0_3_unmask(struct irq_data *data)
+{
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
+ struct s3c24xx_eint_domain_data *ddata = bank->irq_domain->host_data;
+ struct s3c24xx_eint_data *eint_data = ddata->eint_data;
+ int parent_irq = eint_data->parents[data->hwirq];
+ struct irq_chip *parent_chip = irq_get_chip(parent_irq);
+
+ parent_chip->irq_unmask(irq_get_irq_data(parent_irq));
+}
+
+static struct irq_chip s3c2410_eint0_3_chip = {
+ .name = "s3c2410-eint0_3",
+ .irq_ack = s3c2410_eint0_3_ack,
+ .irq_mask = s3c2410_eint0_3_mask,
+ .irq_unmask = s3c2410_eint0_3_unmask,
+ .irq_set_type = s3c24xx_eint_type,
+};
+
+static void s3c2410_demux_eint0_3(struct irq_desc *desc)
+{
+ struct irq_data *data = irq_desc_get_irq_data(desc);
+ struct s3c24xx_eint_data *eint_data = irq_desc_get_handler_data(desc);
+ unsigned int virq;
+
+ /* the first 4 eints have a simple 1 to 1 mapping */
+ virq = irq_linear_revmap(eint_data->domains[data->hwirq], data->hwirq);
+ /* Something must be really wrong if an unmapped EINT is unmasked */
+ BUG_ON(!virq);
+
+ generic_handle_irq(virq);
+}
+
+/* Handling of EINTs 0-3 on S3C2412 and S3C2413 */
+
+static void s3c2412_eint0_3_ack(struct irq_data *data)
+{
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
+ struct samsung_pinctrl_drv_data *d = bank->drvdata;
+
+ unsigned long bitval = 1UL << data->hwirq;
+ writel(bitval, d->virt_base + EINTPEND_REG);
+}
+
+static void s3c2412_eint0_3_mask(struct irq_data *data)
+{
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
+ struct samsung_pinctrl_drv_data *d = bank->drvdata;
+ unsigned long mask;
+
+ mask = readl(d->virt_base + EINTMASK_REG);
+ mask |= (1UL << data->hwirq);
+ writel(mask, d->virt_base + EINTMASK_REG);
+}
+
+static void s3c2412_eint0_3_unmask(struct irq_data *data)
+{
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
+ struct samsung_pinctrl_drv_data *d = bank->drvdata;
+ unsigned long mask;
+
+ mask = readl(d->virt_base + EINTMASK_REG);
+ mask &= ~(1UL << data->hwirq);
+ writel(mask, d->virt_base + EINTMASK_REG);
+}
+
+static struct irq_chip s3c2412_eint0_3_chip = {
+ .name = "s3c2412-eint0_3",
+ .irq_ack = s3c2412_eint0_3_ack,
+ .irq_mask = s3c2412_eint0_3_mask,
+ .irq_unmask = s3c2412_eint0_3_unmask,
+ .irq_set_type = s3c24xx_eint_type,
+};
+
+static void s3c2412_demux_eint0_3(struct irq_desc *desc)
+{
+ struct s3c24xx_eint_data *eint_data = irq_desc_get_handler_data(desc);
+ struct irq_data *data = irq_desc_get_irq_data(desc);
+ struct irq_chip *chip = irq_data_get_irq_chip(data);
+ unsigned int virq;
+
+ chained_irq_enter(chip, desc);
+
+ /* the first 4 eints have a simple 1 to 1 mapping */
+ virq = irq_linear_revmap(eint_data->domains[data->hwirq], data->hwirq);
+ /* Something must be really wrong if an unmapped EINT is unmasked */
+ BUG_ON(!virq);
+
+ generic_handle_irq(virq);
+
+ chained_irq_exit(chip, desc);
+}
+
+/* Handling of all other eints */
+
+static void s3c24xx_eint_ack(struct irq_data *data)
+{
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
+ struct samsung_pinctrl_drv_data *d = bank->drvdata;
+ unsigned char index = bank->eint_offset + data->hwirq;
+
+ writel(1UL << index, d->virt_base + EINTPEND_REG);
+}
+
+static void s3c24xx_eint_mask(struct irq_data *data)
+{
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
+ struct samsung_pinctrl_drv_data *d = bank->drvdata;
+ unsigned char index = bank->eint_offset + data->hwirq;
+ unsigned long mask;
+
+ mask = readl(d->virt_base + EINTMASK_REG);
+ mask |= (1UL << index);
+ writel(mask, d->virt_base + EINTMASK_REG);
+}
+
+static void s3c24xx_eint_unmask(struct irq_data *data)
+{
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
+ struct samsung_pinctrl_drv_data *d = bank->drvdata;
+ unsigned char index = bank->eint_offset + data->hwirq;
+ unsigned long mask;
+
+ mask = readl(d->virt_base + EINTMASK_REG);
+ mask &= ~(1UL << index);
+ writel(mask, d->virt_base + EINTMASK_REG);
+}
+
+static struct irq_chip s3c24xx_eint_chip = {
+ .name = "s3c-eint",
+ .irq_ack = s3c24xx_eint_ack,
+ .irq_mask = s3c24xx_eint_mask,
+ .irq_unmask = s3c24xx_eint_unmask,
+ .irq_set_type = s3c24xx_eint_type,
+};
+
+static inline void s3c24xx_demux_eint(struct irq_desc *desc,
+ u32 offset, u32 range)
+{
+ struct s3c24xx_eint_data *data = irq_desc_get_handler_data(desc);
+ struct irq_chip *chip = irq_desc_get_chip(desc);
+ struct samsung_pinctrl_drv_data *d = data->drvdata;
+ unsigned int pend, mask;
+
+ chained_irq_enter(chip, desc);
+
+ pend = readl(d->virt_base + EINTPEND_REG);
+ mask = readl(d->virt_base + EINTMASK_REG);
+
+ pend &= ~mask;
+ pend &= range;
+
+ while (pend) {
+ unsigned int virq, irq;
+
+ irq = __ffs(pend);
+ pend &= ~(1 << irq);
+ virq = irq_linear_revmap(data->domains[irq], irq - offset);
+ /* Something is really wrong if an unmapped EINT is unmasked */
+ BUG_ON(!virq);
+
+ generic_handle_irq(virq);
+ }
+
+ chained_irq_exit(chip, desc);
+}
+
+static void s3c24xx_demux_eint4_7(struct irq_desc *desc)
+{
+ s3c24xx_demux_eint(desc, 0, 0xf0);
+}
+
+static void s3c24xx_demux_eint8_23(struct irq_desc *desc)
+{
+ s3c24xx_demux_eint(desc, 8, 0xffff00);
+}
+
+static irq_flow_handler_t s3c2410_eint_handlers[NUM_EINT_IRQ] = {
+ s3c2410_demux_eint0_3,
+ s3c2410_demux_eint0_3,
+ s3c2410_demux_eint0_3,
+ s3c2410_demux_eint0_3,
+ s3c24xx_demux_eint4_7,
+ s3c24xx_demux_eint8_23,
+};
+
+static irq_flow_handler_t s3c2412_eint_handlers[NUM_EINT_IRQ] = {
+ s3c2412_demux_eint0_3,
+ s3c2412_demux_eint0_3,
+ s3c2412_demux_eint0_3,
+ s3c2412_demux_eint0_3,
+ s3c24xx_demux_eint4_7,
+ s3c24xx_demux_eint8_23,
+};
+
+static int s3c24xx_gpf_irq_map(struct irq_domain *h, unsigned int virq,
+ irq_hw_number_t hw)
+{
+ struct s3c24xx_eint_domain_data *ddata = h->host_data;
+ struct samsung_pin_bank *bank = ddata->bank;
+
+ if (!(bank->eint_mask & (1 << (bank->eint_offset + hw))))
+ return -EINVAL;
+
+ if (hw <= 3) {
+ if (ddata->eint0_3_parent_only)
+ irq_set_chip_and_handler(virq, &s3c2410_eint0_3_chip,
+ handle_edge_irq);
+ else
+ irq_set_chip_and_handler(virq, &s3c2412_eint0_3_chip,
+ handle_edge_irq);
+ } else {
+ irq_set_chip_and_handler(virq, &s3c24xx_eint_chip,
+ handle_edge_irq);
+ }
+ irq_set_chip_data(virq, bank);
+ return 0;
+}
+
+static const struct irq_domain_ops s3c24xx_gpf_irq_ops = {
+ .map = s3c24xx_gpf_irq_map,
+ .xlate = irq_domain_xlate_twocell,
+};
+
+static int s3c24xx_gpg_irq_map(struct irq_domain *h, unsigned int virq,
+ irq_hw_number_t hw)
+{
+ struct s3c24xx_eint_domain_data *ddata = h->host_data;
+ struct samsung_pin_bank *bank = ddata->bank;
+
+ if (!(bank->eint_mask & (1 << (bank->eint_offset + hw))))
+ return -EINVAL;
+
+ irq_set_chip_and_handler(virq, &s3c24xx_eint_chip, handle_edge_irq);
+ irq_set_chip_data(virq, bank);
+ return 0;
+}
+
+static const struct irq_domain_ops s3c24xx_gpg_irq_ops = {
+ .map = s3c24xx_gpg_irq_map,
+ .xlate = irq_domain_xlate_twocell,
+};
+
+static const struct of_device_id s3c24xx_eint_irq_ids[] = {
+ { .compatible = "samsung,s3c2410-wakeup-eint", .data = (void *)1 },
+ { .compatible = "samsung,s3c2412-wakeup-eint", .data = (void *)0 },
+ { }
+};
+
+static int s3c24xx_eint_init(struct samsung_pinctrl_drv_data *d)
+{
+ struct device *dev = d->dev;
+ const struct of_device_id *match;
+ struct device_node *eint_np = NULL;
+ struct device_node *np;
+ struct samsung_pin_bank *bank;
+ struct s3c24xx_eint_data *eint_data;
+ const struct irq_domain_ops *ops;
+ unsigned int i;
+ bool eint0_3_parent_only;
+ irq_flow_handler_t *handlers;
+
+ for_each_child_of_node(dev->of_node, np) {
+ match = of_match_node(s3c24xx_eint_irq_ids, np);
+ if (match) {
+ eint_np = np;
+ eint0_3_parent_only = (bool)match->data;
+ break;
+ }
+ }
+ if (!eint_np)
+ return -ENODEV;
+
+ eint_data = devm_kzalloc(dev, sizeof(*eint_data), GFP_KERNEL);
+ if (!eint_data) {
+ of_node_put(eint_np);
+ return -ENOMEM;
+ }
+
+ eint_data->drvdata = d;
+
+ handlers = eint0_3_parent_only ? s3c2410_eint_handlers
+ : s3c2412_eint_handlers;
+ for (i = 0; i < NUM_EINT_IRQ; ++i) {
+ unsigned int irq;
+
+ irq = irq_of_parse_and_map(eint_np, i);
+ if (!irq) {
+ dev_err(dev, "failed to get wakeup EINT IRQ %d\n", i);
+ of_node_put(eint_np);
+ return -ENXIO;
+ }
+
+ eint_data->parents[i] = irq;
+ irq_set_chained_handler_and_data(irq, handlers[i], eint_data);
+ }
+ of_node_put(eint_np);
+
+ bank = d->pin_banks;
+ for (i = 0; i < d->nr_banks; ++i, ++bank) {
+ struct s3c24xx_eint_domain_data *ddata;
+ unsigned int mask;
+ unsigned int irq;
+ unsigned int pin;
+
+ if (bank->eint_type != EINT_TYPE_WKUP)
+ continue;
+
+ ddata = devm_kzalloc(dev, sizeof(*ddata), GFP_KERNEL);
+ if (!ddata)
+ return -ENOMEM;
+
+ ddata->bank = bank;
+ ddata->eint_data = eint_data;
+ ddata->eint0_3_parent_only = eint0_3_parent_only;
+
+ ops = (bank->eint_offset == 0) ? &s3c24xx_gpf_irq_ops
+ : &s3c24xx_gpg_irq_ops;
+
+ bank->irq_domain = irq_domain_add_linear(bank->of_node,
+ bank->nr_pins, ops, ddata);
+ if (!bank->irq_domain) {
+ dev_err(dev, "wkup irq domain add failed\n");
+ return -ENXIO;
+ }
+
+ irq = bank->eint_offset;
+ mask = bank->eint_mask;
+ for (pin = 0; mask; ++pin, mask >>= 1) {
+ if (irq >= NUM_EINT)
+ break;
+ if (!(mask & 1))
+ continue;
+ eint_data->domains[irq] = bank->irq_domain;
+ ++irq;
+ }
+ }
+
+ return 0;
+}
+
+static const struct samsung_pin_bank_data s3c2412_pin_banks[] __initconst = {
+ PIN_BANK_A(23, 0x000, "gpa"),
+ PIN_BANK_2BIT(11, 0x010, "gpb"),
+ PIN_BANK_2BIT(16, 0x020, "gpc"),
+ PIN_BANK_2BIT(16, 0x030, "gpd"),
+ PIN_BANK_2BIT(16, 0x040, "gpe"),
+ PIN_BANK_2BIT_EINTW(8, 0x050, "gpf", 0, 0xff),
+ PIN_BANK_2BIT_EINTW(16, 0x060, "gpg", 8, 0xffff00),
+ PIN_BANK_2BIT(11, 0x070, "gph"),
+ PIN_BANK_2BIT(13, 0x080, "gpj"),
+};
+
+static const struct samsung_pin_ctrl s3c2412_pin_ctrl[] __initconst = {
+ {
+ .pin_banks = s3c2412_pin_banks,
+ .nr_banks = ARRAY_SIZE(s3c2412_pin_banks),
+ .eint_wkup_init = s3c24xx_eint_init,
+ },
+};
+
+const struct samsung_pinctrl_of_match_data s3c2412_of_data __initconst = {
+ .ctrl = s3c2412_pin_ctrl,
+ .num_ctrl = ARRAY_SIZE(s3c2412_pin_ctrl),
+};
+
+static const struct samsung_pin_bank_data s3c2416_pin_banks[] __initconst = {
+ PIN_BANK_A(27, 0x000, "gpa"),
+ PIN_BANK_2BIT(11, 0x010, "gpb"),
+ PIN_BANK_2BIT(16, 0x020, "gpc"),
+ PIN_BANK_2BIT(16, 0x030, "gpd"),
+ PIN_BANK_2BIT(16, 0x040, "gpe"),
+ PIN_BANK_2BIT_EINTW(8, 0x050, "gpf", 0, 0xff),
+ PIN_BANK_2BIT_EINTW(8, 0x060, "gpg", 8, 0xff00),
+ PIN_BANK_2BIT(15, 0x070, "gph"),
+ PIN_BANK_2BIT(16, 0x0e0, "gpk"),
+ PIN_BANK_2BIT(14, 0x0f0, "gpl"),
+ PIN_BANK_2BIT(2, 0x100, "gpm"),
+};
+
+static const struct samsung_pin_ctrl s3c2416_pin_ctrl[] __initconst = {
+ {
+ .pin_banks = s3c2416_pin_banks,
+ .nr_banks = ARRAY_SIZE(s3c2416_pin_banks),
+ .eint_wkup_init = s3c24xx_eint_init,
+ },
+};
+
+const struct samsung_pinctrl_of_match_data s3c2416_of_data __initconst = {
+ .ctrl = s3c2416_pin_ctrl,
+ .num_ctrl = ARRAY_SIZE(s3c2416_pin_ctrl),
+};
+
+static const struct samsung_pin_bank_data s3c2440_pin_banks[] __initconst = {
+ PIN_BANK_A(25, 0x000, "gpa"),
+ PIN_BANK_2BIT(11, 0x010, "gpb"),
+ PIN_BANK_2BIT(16, 0x020, "gpc"),
+ PIN_BANK_2BIT(16, 0x030, "gpd"),
+ PIN_BANK_2BIT(16, 0x040, "gpe"),
+ PIN_BANK_2BIT_EINTW(8, 0x050, "gpf", 0, 0xff),
+ PIN_BANK_2BIT_EINTW(16, 0x060, "gpg", 8, 0xffff00),
+ PIN_BANK_2BIT(11, 0x070, "gph"),
+ PIN_BANK_2BIT(13, 0x0d0, "gpj"),
+};
+
+static const struct samsung_pin_ctrl s3c2440_pin_ctrl[] __initconst = {
+ {
+ .pin_banks = s3c2440_pin_banks,
+ .nr_banks = ARRAY_SIZE(s3c2440_pin_banks),
+ .eint_wkup_init = s3c24xx_eint_init,
+ },
+};
+
+const struct samsung_pinctrl_of_match_data s3c2440_of_data __initconst = {
+ .ctrl = s3c2440_pin_ctrl,
+ .num_ctrl = ARRAY_SIZE(s3c2440_pin_ctrl),
+};
+
+static const struct samsung_pin_bank_data s3c2450_pin_banks[] __initconst = {
+ PIN_BANK_A(28, 0x000, "gpa"),
+ PIN_BANK_2BIT(11, 0x010, "gpb"),
+ PIN_BANK_2BIT(16, 0x020, "gpc"),
+ PIN_BANK_2BIT(16, 0x030, "gpd"),
+ PIN_BANK_2BIT(16, 0x040, "gpe"),
+ PIN_BANK_2BIT_EINTW(8, 0x050, "gpf", 0, 0xff),
+ PIN_BANK_2BIT_EINTW(16, 0x060, "gpg", 8, 0xffff00),
+ PIN_BANK_2BIT(15, 0x070, "gph"),
+ PIN_BANK_2BIT(16, 0x0d0, "gpj"),
+ PIN_BANK_2BIT(16, 0x0e0, "gpk"),
+ PIN_BANK_2BIT(15, 0x0f0, "gpl"),
+ PIN_BANK_2BIT(2, 0x100, "gpm"),
+};
+
+static const struct samsung_pin_ctrl s3c2450_pin_ctrl[] __initconst = {
+ {
+ .pin_banks = s3c2450_pin_banks,
+ .nr_banks = ARRAY_SIZE(s3c2450_pin_banks),
+ .eint_wkup_init = s3c24xx_eint_init,
+ },
+};
+
+const struct samsung_pinctrl_of_match_data s3c2450_of_data __initconst = {
+ .ctrl = s3c2450_pin_ctrl,
+ .num_ctrl = ARRAY_SIZE(s3c2450_pin_ctrl),
+};
diff --git a/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-s3c64xx.c b/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-s3c64xx.c
new file mode 100644
index 0000000..cf3a3af
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-s3c64xx.c
@@ -0,0 +1,814 @@
+/*
+ * S3C64xx specific support for pinctrl-samsung driver.
+ *
+ * Copyright (c) 2013 Tomasz Figa <tomasz.figa@gmail.com>
+ *
+ * Based on pinctrl-exynos.c, please see the file for original copyrights.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This file contains the Samsung S3C64xx specific information required by the
+ * the Samsung pinctrl/gpiolib driver. It also includes the implementation of
+ * external gpio and wakeup interrupt support.
+ */
+
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/irqdomain.h>
+#include <linux/irq.h>
+#include <linux/of_irq.h>
+#include <linux/io.h>
+#include <linux/irqchip/chained_irq.h>
+#include <linux/slab.h>
+#include <linux/err.h>
+
+#include "pinctrl-samsung.h"
+
+#define NUM_EINT0 28
+#define NUM_EINT0_IRQ 4
+#define EINT_MAX_PER_REG 16
+#define EINT_MAX_PER_GROUP 16
+
+/* External GPIO and wakeup interrupt related definitions */
+#define SVC_GROUP_SHIFT 4
+#define SVC_GROUP_MASK 0xf
+#define SVC_NUM_MASK 0xf
+#define SVC_GROUP(x) ((x >> SVC_GROUP_SHIFT) & \
+ SVC_GROUP_MASK)
+
+#define EINT12CON_REG 0x200
+#define EINT12MASK_REG 0x240
+#define EINT12PEND_REG 0x260
+
+#define EINT_OFFS(i) ((i) % (2 * EINT_MAX_PER_GROUP))
+#define EINT_GROUP(i) ((i) / EINT_MAX_PER_GROUP)
+#define EINT_REG(g) (4 * ((g) / 2))
+
+#define EINTCON_REG(i) (EINT12CON_REG + EINT_REG(EINT_GROUP(i)))
+#define EINTMASK_REG(i) (EINT12MASK_REG + EINT_REG(EINT_GROUP(i)))
+#define EINTPEND_REG(i) (EINT12PEND_REG + EINT_REG(EINT_GROUP(i)))
+
+#define SERVICE_REG 0x284
+#define SERVICEPEND_REG 0x288
+
+#define EINT0CON0_REG 0x900
+#define EINT0MASK_REG 0x920
+#define EINT0PEND_REG 0x924
+
+/* S3C64xx specific external interrupt trigger types */
+#define EINT_LEVEL_LOW 0
+#define EINT_LEVEL_HIGH 1
+#define EINT_EDGE_FALLING 2
+#define EINT_EDGE_RISING 4
+#define EINT_EDGE_BOTH 6
+#define EINT_CON_MASK 0xF
+#define EINT_CON_LEN 4
+
+static const struct samsung_pin_bank_type bank_type_4bit_off = {
+ .fld_width = { 4, 1, 2, 0, 2, 2, },
+ .reg_offset = { 0x00, 0x04, 0x08, 0, 0x0c, 0x10, },
+};
+
+static const struct samsung_pin_bank_type bank_type_4bit_alive = {
+ .fld_width = { 4, 1, 2, },
+ .reg_offset = { 0x00, 0x04, 0x08, },
+};
+
+static const struct samsung_pin_bank_type bank_type_4bit2_off = {
+ .fld_width = { 4, 1, 2, 0, 2, 2, },
+ .reg_offset = { 0x00, 0x08, 0x0c, 0, 0x10, 0x14, },
+};
+
+static const struct samsung_pin_bank_type bank_type_4bit2_alive = {
+ .fld_width = { 4, 1, 2, },
+ .reg_offset = { 0x00, 0x08, 0x0c, },
+};
+
+static const struct samsung_pin_bank_type bank_type_2bit_off = {
+ .fld_width = { 2, 1, 2, 0, 2, 2, },
+ .reg_offset = { 0x00, 0x04, 0x08, 0, 0x0c, 0x10, },
+};
+
+static const struct samsung_pin_bank_type bank_type_2bit_alive = {
+ .fld_width = { 2, 1, 2, },
+ .reg_offset = { 0x00, 0x04, 0x08, },
+};
+
+#define PIN_BANK_4BIT(pins, reg, id) \
+ { \
+ .type = &bank_type_4bit_off, \
+ .pctl_offset = reg, \
+ .nr_pins = pins, \
+ .eint_type = EINT_TYPE_NONE, \
+ .name = id \
+ }
+
+#define PIN_BANK_4BIT_EINTG(pins, reg, id, eoffs) \
+ { \
+ .type = &bank_type_4bit_off, \
+ .pctl_offset = reg, \
+ .nr_pins = pins, \
+ .eint_type = EINT_TYPE_GPIO, \
+ .eint_func = 7, \
+ .eint_mask = (1 << (pins)) - 1, \
+ .eint_offset = eoffs, \
+ .name = id \
+ }
+
+#define PIN_BANK_4BIT_EINTW(pins, reg, id, eoffs, emask) \
+ { \
+ .type = &bank_type_4bit_alive,\
+ .pctl_offset = reg, \
+ .nr_pins = pins, \
+ .eint_type = EINT_TYPE_WKUP, \
+ .eint_func = 3, \
+ .eint_mask = emask, \
+ .eint_offset = eoffs, \
+ .name = id \
+ }
+
+#define PIN_BANK_4BIT2_EINTG(pins, reg, id, eoffs) \
+ { \
+ .type = &bank_type_4bit2_off, \
+ .pctl_offset = reg, \
+ .nr_pins = pins, \
+ .eint_type = EINT_TYPE_GPIO, \
+ .eint_func = 7, \
+ .eint_mask = (1 << (pins)) - 1, \
+ .eint_offset = eoffs, \
+ .name = id \
+ }
+
+#define PIN_BANK_4BIT2_EINTW(pins, reg, id, eoffs, emask) \
+ { \
+ .type = &bank_type_4bit2_alive,\
+ .pctl_offset = reg, \
+ .nr_pins = pins, \
+ .eint_type = EINT_TYPE_WKUP, \
+ .eint_func = 3, \
+ .eint_mask = emask, \
+ .eint_offset = eoffs, \
+ .name = id \
+ }
+
+#define PIN_BANK_4BIT2_ALIVE(pins, reg, id) \
+ { \
+ .type = &bank_type_4bit2_alive,\
+ .pctl_offset = reg, \
+ .nr_pins = pins, \
+ .eint_type = EINT_TYPE_NONE, \
+ .name = id \
+ }
+
+#define PIN_BANK_2BIT(pins, reg, id) \
+ { \
+ .type = &bank_type_2bit_off, \
+ .pctl_offset = reg, \
+ .nr_pins = pins, \
+ .eint_type = EINT_TYPE_NONE, \
+ .name = id \
+ }
+
+#define PIN_BANK_2BIT_EINTG(pins, reg, id, eoffs, emask) \
+ { \
+ .type = &bank_type_2bit_off, \
+ .pctl_offset = reg, \
+ .nr_pins = pins, \
+ .eint_type = EINT_TYPE_GPIO, \
+ .eint_func = 3, \
+ .eint_mask = emask, \
+ .eint_offset = eoffs, \
+ .name = id \
+ }
+
+#define PIN_BANK_2BIT_EINTW(pins, reg, id, eoffs) \
+ { \
+ .type = &bank_type_2bit_alive,\
+ .pctl_offset = reg, \
+ .nr_pins = pins, \
+ .eint_type = EINT_TYPE_WKUP, \
+ .eint_func = 2, \
+ .eint_mask = (1 << (pins)) - 1, \
+ .eint_offset = eoffs, \
+ .name = id \
+ }
+
+/**
+ * struct s3c64xx_eint0_data: EINT0 common data
+ * @drvdata: pin controller driver data
+ * @domains: IRQ domains of particular EINT0 interrupts
+ * @pins: pin offsets inside of banks of particular EINT0 interrupts
+ */
+struct s3c64xx_eint0_data {
+ struct samsung_pinctrl_drv_data *drvdata;
+ struct irq_domain *domains[NUM_EINT0];
+ u8 pins[NUM_EINT0];
+};
+
+/**
+ * struct s3c64xx_eint0_domain_data: EINT0 per-domain data
+ * @bank: pin bank related to the domain
+ * @eints: EINT0 interrupts related to the domain
+ */
+struct s3c64xx_eint0_domain_data {
+ struct samsung_pin_bank *bank;
+ u8 eints[];
+};
+
+/**
+ * struct s3c64xx_eint_gpio_data: GPIO EINT data
+ * @drvdata: pin controller driver data
+ * @domains: array of domains related to EINT interrupt groups
+ */
+struct s3c64xx_eint_gpio_data {
+ struct samsung_pinctrl_drv_data *drvdata;
+ struct irq_domain *domains[];
+};
+
+/*
+ * Common functions for S3C64xx EINT configuration
+ */
+
+static int s3c64xx_irq_get_trigger(unsigned int type)
+{
+ int trigger;
+
+ switch (type) {
+ case IRQ_TYPE_EDGE_RISING:
+ trigger = EINT_EDGE_RISING;
+ break;
+ case IRQ_TYPE_EDGE_FALLING:
+ trigger = EINT_EDGE_FALLING;
+ break;
+ case IRQ_TYPE_EDGE_BOTH:
+ trigger = EINT_EDGE_BOTH;
+ break;
+ case IRQ_TYPE_LEVEL_HIGH:
+ trigger = EINT_LEVEL_HIGH;
+ break;
+ case IRQ_TYPE_LEVEL_LOW:
+ trigger = EINT_LEVEL_LOW;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return trigger;
+}
+
+static void s3c64xx_irq_set_handler(struct irq_data *d, unsigned int type)
+{
+ /* Edge- and level-triggered interrupts need different handlers */
+ if (type & IRQ_TYPE_EDGE_BOTH)
+ irq_set_handler_locked(d, handle_edge_irq);
+ else
+ irq_set_handler_locked(d, handle_level_irq);
+}
+
+static void s3c64xx_irq_set_function(struct samsung_pinctrl_drv_data *d,
+ struct samsung_pin_bank *bank, int pin)
+{
+ const struct samsung_pin_bank_type *bank_type = bank->type;
+ unsigned long flags;
+ void __iomem *reg;
+ u8 shift;
+ u32 mask;
+ u32 val;
+
+ /* Make sure that pin is configured as interrupt */
+ reg = d->virt_base + bank->pctl_offset;
+ shift = pin;
+ if (bank_type->fld_width[PINCFG_TYPE_FUNC] * shift >= 32) {
+ /* 4-bit bank type with 2 con regs */
+ reg += 4;
+ shift -= 8;
+ }
+
+ shift = shift * bank_type->fld_width[PINCFG_TYPE_FUNC];
+ mask = (1 << bank_type->fld_width[PINCFG_TYPE_FUNC]) - 1;
+
+ spin_lock_irqsave(&bank->slock, flags);
+
+ val = readl(reg);
+ val &= ~(mask << shift);
+ val |= bank->eint_func << shift;
+ writel(val, reg);
+
+ spin_unlock_irqrestore(&bank->slock, flags);
+}
+
+/*
+ * Functions for EINT GPIO configuration (EINT groups 1-9)
+ */
+
+static inline void s3c64xx_gpio_irq_set_mask(struct irq_data *irqd, bool mask)
+{
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
+ struct samsung_pinctrl_drv_data *d = bank->drvdata;
+ unsigned char index = EINT_OFFS(bank->eint_offset) + irqd->hwirq;
+ void __iomem *reg = d->virt_base + EINTMASK_REG(bank->eint_offset);
+ u32 val;
+
+ val = readl(reg);
+ if (mask)
+ val |= 1 << index;
+ else
+ val &= ~(1 << index);
+ writel(val, reg);
+}
+
+static void s3c64xx_gpio_irq_unmask(struct irq_data *irqd)
+{
+ s3c64xx_gpio_irq_set_mask(irqd, false);
+}
+
+static void s3c64xx_gpio_irq_mask(struct irq_data *irqd)
+{
+ s3c64xx_gpio_irq_set_mask(irqd, true);
+}
+
+static void s3c64xx_gpio_irq_ack(struct irq_data *irqd)
+{
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
+ struct samsung_pinctrl_drv_data *d = bank->drvdata;
+ unsigned char index = EINT_OFFS(bank->eint_offset) + irqd->hwirq;
+ void __iomem *reg = d->virt_base + EINTPEND_REG(bank->eint_offset);
+
+ writel(1 << index, reg);
+}
+
+static int s3c64xx_gpio_irq_set_type(struct irq_data *irqd, unsigned int type)
+{
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
+ struct samsung_pinctrl_drv_data *d = bank->drvdata;
+ void __iomem *reg;
+ int trigger;
+ u8 shift;
+ u32 val;
+
+ trigger = s3c64xx_irq_get_trigger(type);
+ if (trigger < 0) {
+ pr_err("unsupported external interrupt type\n");
+ return -EINVAL;
+ }
+
+ s3c64xx_irq_set_handler(irqd, type);
+
+ /* Set up interrupt trigger */
+ reg = d->virt_base + EINTCON_REG(bank->eint_offset);
+ shift = EINT_OFFS(bank->eint_offset) + irqd->hwirq;
+ shift = 4 * (shift / 4); /* 4 EINTs per trigger selector */
+
+ val = readl(reg);
+ val &= ~(EINT_CON_MASK << shift);
+ val |= trigger << shift;
+ writel(val, reg);
+
+ s3c64xx_irq_set_function(d, bank, irqd->hwirq);
+
+ return 0;
+}
+
+/*
+ * irq_chip for gpio interrupts.
+ */
+static struct irq_chip s3c64xx_gpio_irq_chip = {
+ .name = "GPIO",
+ .irq_unmask = s3c64xx_gpio_irq_unmask,
+ .irq_mask = s3c64xx_gpio_irq_mask,
+ .irq_ack = s3c64xx_gpio_irq_ack,
+ .irq_set_type = s3c64xx_gpio_irq_set_type,
+};
+
+static int s3c64xx_gpio_irq_map(struct irq_domain *h, unsigned int virq,
+ irq_hw_number_t hw)
+{
+ struct samsung_pin_bank *bank = h->host_data;
+
+ if (!(bank->eint_mask & (1 << hw)))
+ return -EINVAL;
+
+ irq_set_chip_and_handler(virq,
+ &s3c64xx_gpio_irq_chip, handle_level_irq);
+ irq_set_chip_data(virq, bank);
+
+ return 0;
+}
+
+/*
+ * irq domain callbacks for external gpio interrupt controller.
+ */
+static const struct irq_domain_ops s3c64xx_gpio_irqd_ops = {
+ .map = s3c64xx_gpio_irq_map,
+ .xlate = irq_domain_xlate_twocell,
+};
+
+static void s3c64xx_eint_gpio_irq(struct irq_desc *desc)
+{
+ struct irq_chip *chip = irq_desc_get_chip(desc);
+ struct s3c64xx_eint_gpio_data *data = irq_desc_get_handler_data(desc);
+ struct samsung_pinctrl_drv_data *drvdata = data->drvdata;
+
+ chained_irq_enter(chip, desc);
+
+ do {
+ unsigned int svc;
+ unsigned int group;
+ unsigned int pin;
+ unsigned int virq;
+
+ svc = readl(drvdata->virt_base + SERVICE_REG);
+ group = SVC_GROUP(svc);
+ pin = svc & SVC_NUM_MASK;
+
+ if (!group)
+ break;
+
+ /* Group 1 is used for two pin banks */
+ if (group == 1) {
+ if (pin < 8)
+ group = 0;
+ else
+ pin -= 8;
+ }
+
+ virq = irq_linear_revmap(data->domains[group], pin);
+ /*
+ * Something must be really wrong if an unmapped EINT
+ * was unmasked...
+ */
+ BUG_ON(!virq);
+
+ generic_handle_irq(virq);
+ } while (1);
+
+ chained_irq_exit(chip, desc);
+}
+
+/**
+ * s3c64xx_eint_gpio_init() - setup handling of external gpio interrupts.
+ * @d: driver data of samsung pinctrl driver.
+ */
+static int s3c64xx_eint_gpio_init(struct samsung_pinctrl_drv_data *d)
+{
+ struct s3c64xx_eint_gpio_data *data;
+ struct samsung_pin_bank *bank;
+ struct device *dev = d->dev;
+ unsigned int nr_domains;
+ unsigned int i;
+
+ if (!d->irq) {
+ dev_err(dev, "irq number not available\n");
+ return -EINVAL;
+ }
+
+ nr_domains = 0;
+ bank = d->pin_banks;
+ for (i = 0; i < d->nr_banks; ++i, ++bank) {
+ unsigned int nr_eints;
+ unsigned int mask;
+
+ if (bank->eint_type != EINT_TYPE_GPIO)
+ continue;
+
+ mask = bank->eint_mask;
+ nr_eints = fls(mask);
+
+ bank->irq_domain = irq_domain_add_linear(bank->of_node,
+ nr_eints, &s3c64xx_gpio_irqd_ops, bank);
+ if (!bank->irq_domain) {
+ dev_err(dev, "gpio irq domain add failed\n");
+ return -ENXIO;
+ }
+
+ ++nr_domains;
+ }
+
+ data = devm_kzalloc(dev, sizeof(*data)
+ + nr_domains * sizeof(*data->domains), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+ data->drvdata = d;
+
+ bank = d->pin_banks;
+ nr_domains = 0;
+ for (i = 0; i < d->nr_banks; ++i, ++bank) {
+ if (bank->eint_type != EINT_TYPE_GPIO)
+ continue;
+
+ data->domains[nr_domains++] = bank->irq_domain;
+ }
+
+ irq_set_chained_handler_and_data(d->irq, s3c64xx_eint_gpio_irq, data);
+
+ return 0;
+}
+
+/*
+ * Functions for configuration of EINT0 wake-up interrupts
+ */
+
+static inline void s3c64xx_eint0_irq_set_mask(struct irq_data *irqd, bool mask)
+{
+ struct s3c64xx_eint0_domain_data *ddata =
+ irq_data_get_irq_chip_data(irqd);
+ struct samsung_pinctrl_drv_data *d = ddata->bank->drvdata;
+ u32 val;
+
+ val = readl(d->virt_base + EINT0MASK_REG);
+ if (mask)
+ val |= 1 << ddata->eints[irqd->hwirq];
+ else
+ val &= ~(1 << ddata->eints[irqd->hwirq]);
+ writel(val, d->virt_base + EINT0MASK_REG);
+}
+
+static void s3c64xx_eint0_irq_unmask(struct irq_data *irqd)
+{
+ s3c64xx_eint0_irq_set_mask(irqd, false);
+}
+
+static void s3c64xx_eint0_irq_mask(struct irq_data *irqd)
+{
+ s3c64xx_eint0_irq_set_mask(irqd, true);
+}
+
+static void s3c64xx_eint0_irq_ack(struct irq_data *irqd)
+{
+ struct s3c64xx_eint0_domain_data *ddata =
+ irq_data_get_irq_chip_data(irqd);
+ struct samsung_pinctrl_drv_data *d = ddata->bank->drvdata;
+
+ writel(1 << ddata->eints[irqd->hwirq],
+ d->virt_base + EINT0PEND_REG);
+}
+
+static int s3c64xx_eint0_irq_set_type(struct irq_data *irqd, unsigned int type)
+{
+ struct s3c64xx_eint0_domain_data *ddata =
+ irq_data_get_irq_chip_data(irqd);
+ struct samsung_pin_bank *bank = ddata->bank;
+ struct samsung_pinctrl_drv_data *d = bank->drvdata;
+ void __iomem *reg;
+ int trigger;
+ u8 shift;
+ u32 val;
+
+ trigger = s3c64xx_irq_get_trigger(type);
+ if (trigger < 0) {
+ pr_err("unsupported external interrupt type\n");
+ return -EINVAL;
+ }
+
+ s3c64xx_irq_set_handler(irqd, type);
+
+ /* Set up interrupt trigger */
+ reg = d->virt_base + EINT0CON0_REG;
+ shift = ddata->eints[irqd->hwirq];
+ if (shift >= EINT_MAX_PER_REG) {
+ reg += 4;
+ shift -= EINT_MAX_PER_REG;
+ }
+ shift = EINT_CON_LEN * (shift / 2);
+
+ val = readl(reg);
+ val &= ~(EINT_CON_MASK << shift);
+ val |= trigger << shift;
+ writel(val, reg);
+
+ s3c64xx_irq_set_function(d, bank, irqd->hwirq);
+
+ return 0;
+}
+
+/*
+ * irq_chip for wakeup interrupts
+ */
+static struct irq_chip s3c64xx_eint0_irq_chip = {
+ .name = "EINT0",
+ .irq_unmask = s3c64xx_eint0_irq_unmask,
+ .irq_mask = s3c64xx_eint0_irq_mask,
+ .irq_ack = s3c64xx_eint0_irq_ack,
+ .irq_set_type = s3c64xx_eint0_irq_set_type,
+};
+
+static inline void s3c64xx_irq_demux_eint(struct irq_desc *desc, u32 range)
+{
+ struct irq_chip *chip = irq_desc_get_chip(desc);
+ struct s3c64xx_eint0_data *data = irq_desc_get_handler_data(desc);
+ struct samsung_pinctrl_drv_data *drvdata = data->drvdata;
+ unsigned int pend, mask;
+
+ chained_irq_enter(chip, desc);
+
+ pend = readl(drvdata->virt_base + EINT0PEND_REG);
+ mask = readl(drvdata->virt_base + EINT0MASK_REG);
+
+ pend = pend & range & ~mask;
+ pend &= range;
+
+ while (pend) {
+ unsigned int virq, irq;
+
+ irq = fls(pend) - 1;
+ pend &= ~(1 << irq);
+ virq = irq_linear_revmap(data->domains[irq], data->pins[irq]);
+ /*
+ * Something must be really wrong if an unmapped EINT
+ * was unmasked...
+ */
+ BUG_ON(!virq);
+
+ generic_handle_irq(virq);
+ }
+
+ chained_irq_exit(chip, desc);
+}
+
+static void s3c64xx_demux_eint0_3(struct irq_desc *desc)
+{
+ s3c64xx_irq_demux_eint(desc, 0xf);
+}
+
+static void s3c64xx_demux_eint4_11(struct irq_desc *desc)
+{
+ s3c64xx_irq_demux_eint(desc, 0xff0);
+}
+
+static void s3c64xx_demux_eint12_19(struct irq_desc *desc)
+{
+ s3c64xx_irq_demux_eint(desc, 0xff000);
+}
+
+static void s3c64xx_demux_eint20_27(struct irq_desc *desc)
+{
+ s3c64xx_irq_demux_eint(desc, 0xff00000);
+}
+
+static irq_flow_handler_t s3c64xx_eint0_handlers[NUM_EINT0_IRQ] = {
+ s3c64xx_demux_eint0_3,
+ s3c64xx_demux_eint4_11,
+ s3c64xx_demux_eint12_19,
+ s3c64xx_demux_eint20_27,
+};
+
+static int s3c64xx_eint0_irq_map(struct irq_domain *h, unsigned int virq,
+ irq_hw_number_t hw)
+{
+ struct s3c64xx_eint0_domain_data *ddata = h->host_data;
+ struct samsung_pin_bank *bank = ddata->bank;
+
+ if (!(bank->eint_mask & (1 << hw)))
+ return -EINVAL;
+
+ irq_set_chip_and_handler(virq,
+ &s3c64xx_eint0_irq_chip, handle_level_irq);
+ irq_set_chip_data(virq, ddata);
+
+ return 0;
+}
+
+/*
+ * irq domain callbacks for external wakeup interrupt controller.
+ */
+static const struct irq_domain_ops s3c64xx_eint0_irqd_ops = {
+ .map = s3c64xx_eint0_irq_map,
+ .xlate = irq_domain_xlate_twocell,
+};
+
+/* list of external wakeup controllers supported */
+static const struct of_device_id s3c64xx_eint0_irq_ids[] = {
+ { .compatible = "samsung,s3c64xx-wakeup-eint", },
+ { }
+};
+
+/**
+ * s3c64xx_eint_eint0_init() - setup handling of external wakeup interrupts.
+ * @d: driver data of samsung pinctrl driver.
+ */
+static int s3c64xx_eint_eint0_init(struct samsung_pinctrl_drv_data *d)
+{
+ struct device *dev = d->dev;
+ struct device_node *eint0_np = NULL;
+ struct device_node *np;
+ struct samsung_pin_bank *bank;
+ struct s3c64xx_eint0_data *data;
+ unsigned int i;
+
+ for_each_child_of_node(dev->of_node, np) {
+ if (of_match_node(s3c64xx_eint0_irq_ids, np)) {
+ eint0_np = np;
+ break;
+ }
+ }
+ if (!eint0_np)
+ return -ENODEV;
+
+ data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
+ if (!data) {
+ of_node_put(eint0_np);
+ return -ENOMEM;
+ }
+ data->drvdata = d;
+
+ for (i = 0; i < NUM_EINT0_IRQ; ++i) {
+ unsigned int irq;
+
+ irq = irq_of_parse_and_map(eint0_np, i);
+ if (!irq) {
+ dev_err(dev, "failed to get wakeup EINT IRQ %d\n", i);
+ of_node_put(eint0_np);
+ return -ENXIO;
+ }
+
+ irq_set_chained_handler_and_data(irq,
+ s3c64xx_eint0_handlers[i],
+ data);
+ }
+ of_node_put(eint0_np);
+
+ bank = d->pin_banks;
+ for (i = 0; i < d->nr_banks; ++i, ++bank) {
+ struct s3c64xx_eint0_domain_data *ddata;
+ unsigned int nr_eints;
+ unsigned int mask;
+ unsigned int irq;
+ unsigned int pin;
+
+ if (bank->eint_type != EINT_TYPE_WKUP)
+ continue;
+
+ mask = bank->eint_mask;
+ nr_eints = fls(mask);
+
+ ddata = devm_kzalloc(dev,
+ sizeof(*ddata) + nr_eints, GFP_KERNEL);
+ if (!ddata)
+ return -ENOMEM;
+ ddata->bank = bank;
+
+ bank->irq_domain = irq_domain_add_linear(bank->of_node,
+ nr_eints, &s3c64xx_eint0_irqd_ops, ddata);
+ if (!bank->irq_domain) {
+ dev_err(dev, "wkup irq domain add failed\n");
+ return -ENXIO;
+ }
+
+ irq = bank->eint_offset;
+ mask = bank->eint_mask;
+ for (pin = 0; mask; ++pin, mask >>= 1) {
+ if (!(mask & 1))
+ continue;
+ data->domains[irq] = bank->irq_domain;
+ data->pins[irq] = pin;
+ ddata->eints[pin] = irq;
+ ++irq;
+ }
+ }
+
+ return 0;
+}
+
+/* pin banks of s3c64xx pin-controller 0 */
+static const struct samsung_pin_bank_data s3c64xx_pin_banks0[] __initconst = {
+ PIN_BANK_4BIT_EINTG(8, 0x000, "gpa", 0),
+ PIN_BANK_4BIT_EINTG(7, 0x020, "gpb", 8),
+ PIN_BANK_4BIT_EINTG(8, 0x040, "gpc", 16),
+ PIN_BANK_4BIT_EINTG(5, 0x060, "gpd", 32),
+ PIN_BANK_4BIT(5, 0x080, "gpe"),
+ PIN_BANK_2BIT_EINTG(16, 0x0a0, "gpf", 48, 0x3fff),
+ PIN_BANK_4BIT_EINTG(7, 0x0c0, "gpg", 64),
+ PIN_BANK_4BIT2_EINTG(10, 0x0e0, "gph", 80),
+ PIN_BANK_2BIT(16, 0x100, "gpi"),
+ PIN_BANK_2BIT(12, 0x120, "gpj"),
+ PIN_BANK_4BIT2_ALIVE(16, 0x800, "gpk"),
+ PIN_BANK_4BIT2_EINTW(15, 0x810, "gpl", 16, 0x7f00),
+ PIN_BANK_4BIT_EINTW(6, 0x820, "gpm", 23, 0x1f),
+ PIN_BANK_2BIT_EINTW(16, 0x830, "gpn", 0),
+ PIN_BANK_2BIT_EINTG(16, 0x140, "gpo", 96, 0xffff),
+ PIN_BANK_2BIT_EINTG(15, 0x160, "gpp", 112, 0x7fff),
+ PIN_BANK_2BIT_EINTG(9, 0x180, "gpq", 128, 0x1ff),
+};
+
+/*
+ * Samsung pinctrl driver data for S3C64xx SoC. S3C64xx SoC includes
+ * one gpio/pin-mux/pinconfig controller.
+ */
+static const struct samsung_pin_ctrl s3c64xx_pin_ctrl[] __initconst = {
+ {
+ /* pin-controller instance 1 data */
+ .pin_banks = s3c64xx_pin_banks0,
+ .nr_banks = ARRAY_SIZE(s3c64xx_pin_banks0),
+ .eint_gpio_init = s3c64xx_eint_gpio_init,
+ .eint_wkup_init = s3c64xx_eint_eint0_init,
+ },
+};
+
+const struct samsung_pinctrl_of_match_data s3c64xx_of_data __initconst = {
+ .ctrl = s3c64xx_pin_ctrl,
+ .num_ctrl = ARRAY_SIZE(s3c64xx_pin_ctrl),
+};
diff --git a/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-samsung.c b/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-samsung.c
new file mode 100644
index 0000000..7c0f5d4
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-samsung.c
@@ -0,0 +1,1277 @@
+/*
+ * pin-controller/pin-mux/pin-config/gpio-driver for Samsung's SoC's.
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ * Copyright (c) 2012 Linaro Ltd
+ * http://www.linaro.org
+ *
+ * Author: Thomas Abraham <thomas.ab@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This driver implements the Samsung pinctrl driver. It supports setting up of
+ * pinmux and pinconf configurations. The gpiolib interface is also included.
+ * External interrupt (gpio and wakeup) support are not included in this driver
+ * but provides extensions to which platform specific implementation of the gpio
+ * and wakeup interrupts can be hooked to.
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/irqdomain.h>
+#include <linux/of_device.h>
+#include <linux/spinlock.h>
+
+#include <dt-bindings/pinctrl/samsung.h>
+
+#include "../core.h"
+#include "pinctrl-samsung.h"
+
+/* maximum number of the memory resources */
+#define SAMSUNG_PINCTRL_NUM_RESOURCES 2
+
+/* list of all possible config options supported */
+static struct pin_config {
+ const char *property;
+ enum pincfg_type param;
+} cfg_params[] = {
+ { "samsung,pin-pud", PINCFG_TYPE_PUD },
+ { "samsung,pin-drv", PINCFG_TYPE_DRV },
+ { "samsung,pin-con-pdn", PINCFG_TYPE_CON_PDN },
+ { "samsung,pin-pud-pdn", PINCFG_TYPE_PUD_PDN },
+ { "samsung,pin-val", PINCFG_TYPE_DAT },
+};
+
+static unsigned int pin_base;
+
+static int samsung_get_group_count(struct pinctrl_dev *pctldev)
+{
+ struct samsung_pinctrl_drv_data *pmx = pinctrl_dev_get_drvdata(pctldev);
+
+ return pmx->nr_groups;
+}
+
+static const char *samsung_get_group_name(struct pinctrl_dev *pctldev,
+ unsigned group)
+{
+ struct samsung_pinctrl_drv_data *pmx = pinctrl_dev_get_drvdata(pctldev);
+
+ return pmx->pin_groups[group].name;
+}
+
+static int samsung_get_group_pins(struct pinctrl_dev *pctldev,
+ unsigned group,
+ const unsigned **pins,
+ unsigned *num_pins)
+{
+ struct samsung_pinctrl_drv_data *pmx = pinctrl_dev_get_drvdata(pctldev);
+
+ *pins = pmx->pin_groups[group].pins;
+ *num_pins = pmx->pin_groups[group].num_pins;
+
+ return 0;
+}
+
+static int reserve_map(struct device *dev, struct pinctrl_map **map,
+ unsigned *reserved_maps, unsigned *num_maps,
+ unsigned reserve)
+{
+ unsigned old_num = *reserved_maps;
+ unsigned new_num = *num_maps + reserve;
+ struct pinctrl_map *new_map;
+
+ if (old_num >= new_num)
+ return 0;
+
+ new_map = krealloc(*map, sizeof(*new_map) * new_num, GFP_KERNEL);
+ if (!new_map)
+ return -ENOMEM;
+
+ memset(new_map + old_num, 0, (new_num - old_num) * sizeof(*new_map));
+
+ *map = new_map;
+ *reserved_maps = new_num;
+
+ return 0;
+}
+
+static int add_map_mux(struct pinctrl_map **map, unsigned *reserved_maps,
+ unsigned *num_maps, const char *group,
+ const char *function)
+{
+ if (WARN_ON(*num_maps == *reserved_maps))
+ return -ENOSPC;
+
+ (*map)[*num_maps].type = PIN_MAP_TYPE_MUX_GROUP;
+ (*map)[*num_maps].data.mux.group = group;
+ (*map)[*num_maps].data.mux.function = function;
+ (*num_maps)++;
+
+ return 0;
+}
+
+static int add_map_configs(struct device *dev, struct pinctrl_map **map,
+ unsigned *reserved_maps, unsigned *num_maps,
+ const char *group, unsigned long *configs,
+ unsigned num_configs)
+{
+ unsigned long *dup_configs;
+
+ if (WARN_ON(*num_maps == *reserved_maps))
+ return -ENOSPC;
+
+ dup_configs = kmemdup(configs, num_configs * sizeof(*dup_configs),
+ GFP_KERNEL);
+ if (!dup_configs)
+ return -ENOMEM;
+
+ (*map)[*num_maps].type = PIN_MAP_TYPE_CONFIGS_GROUP;
+ (*map)[*num_maps].data.configs.group_or_pin = group;
+ (*map)[*num_maps].data.configs.configs = dup_configs;
+ (*map)[*num_maps].data.configs.num_configs = num_configs;
+ (*num_maps)++;
+
+ return 0;
+}
+
+static int add_config(struct device *dev, unsigned long **configs,
+ unsigned *num_configs, unsigned long config)
+{
+ unsigned old_num = *num_configs;
+ unsigned new_num = old_num + 1;
+ unsigned long *new_configs;
+
+ new_configs = krealloc(*configs, sizeof(*new_configs) * new_num,
+ GFP_KERNEL);
+ if (!new_configs)
+ return -ENOMEM;
+
+ new_configs[old_num] = config;
+
+ *configs = new_configs;
+ *num_configs = new_num;
+
+ return 0;
+}
+
+static void samsung_dt_free_map(struct pinctrl_dev *pctldev,
+ struct pinctrl_map *map,
+ unsigned num_maps)
+{
+ int i;
+
+ for (i = 0; i < num_maps; i++)
+ if (map[i].type == PIN_MAP_TYPE_CONFIGS_GROUP)
+ kfree(map[i].data.configs.configs);
+
+ kfree(map);
+}
+
+static int samsung_dt_subnode_to_map(struct samsung_pinctrl_drv_data *drvdata,
+ struct device *dev,
+ struct device_node *np,
+ struct pinctrl_map **map,
+ unsigned *reserved_maps,
+ unsigned *num_maps)
+{
+ int ret, i;
+ u32 val;
+ unsigned long config;
+ unsigned long *configs = NULL;
+ unsigned num_configs = 0;
+ unsigned reserve;
+ struct property *prop;
+ const char *group;
+ bool has_func = false;
+
+ ret = of_property_read_u32(np, "samsung,pin-function", &val);
+ if (!ret)
+ has_func = true;
+
+ for (i = 0; i < ARRAY_SIZE(cfg_params); i++) {
+ ret = of_property_read_u32(np, cfg_params[i].property, &val);
+ if (!ret) {
+ config = PINCFG_PACK(cfg_params[i].param, val);
+ ret = add_config(dev, &configs, &num_configs, config);
+ if (ret < 0)
+ goto exit;
+ /* EINVAL=missing, which is fine since it's optional */
+ } else if (ret != -EINVAL) {
+ dev_err(dev, "could not parse property %s\n",
+ cfg_params[i].property);
+ }
+ }
+
+ reserve = 0;
+ if (has_func)
+ reserve++;
+ if (num_configs)
+ reserve++;
+ ret = of_property_count_strings(np, "samsung,pins");
+ if (ret < 0) {
+ dev_err(dev, "could not parse property samsung,pins\n");
+ goto exit;
+ }
+ reserve *= ret;
+
+ ret = reserve_map(dev, map, reserved_maps, num_maps, reserve);
+ if (ret < 0)
+ goto exit;
+
+ of_property_for_each_string(np, "samsung,pins", prop, group) {
+ if (has_func) {
+ ret = add_map_mux(map, reserved_maps,
+ num_maps, group, np->full_name);
+ if (ret < 0)
+ goto exit;
+ }
+
+ if (num_configs) {
+ ret = add_map_configs(dev, map, reserved_maps,
+ num_maps, group, configs,
+ num_configs);
+ if (ret < 0)
+ goto exit;
+ }
+ }
+
+ ret = 0;
+
+exit:
+ kfree(configs);
+ return ret;
+}
+
+static int samsung_dt_node_to_map(struct pinctrl_dev *pctldev,
+ struct device_node *np_config,
+ struct pinctrl_map **map,
+ unsigned *num_maps)
+{
+ struct samsung_pinctrl_drv_data *drvdata;
+ unsigned reserved_maps;
+ struct device_node *np;
+ int ret;
+
+ drvdata = pinctrl_dev_get_drvdata(pctldev);
+
+ reserved_maps = 0;
+ *map = NULL;
+ *num_maps = 0;
+
+ if (!of_get_child_count(np_config))
+ return samsung_dt_subnode_to_map(drvdata, pctldev->dev,
+ np_config, map,
+ &reserved_maps,
+ num_maps);
+
+ for_each_child_of_node(np_config, np) {
+ ret = samsung_dt_subnode_to_map(drvdata, pctldev->dev, np, map,
+ &reserved_maps, num_maps);
+ if (ret < 0) {
+ samsung_dt_free_map(pctldev, *map, *num_maps);
+ of_node_put(np);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+/* list of pinctrl callbacks for the pinctrl core */
+static const struct pinctrl_ops samsung_pctrl_ops = {
+ .get_groups_count = samsung_get_group_count,
+ .get_group_name = samsung_get_group_name,
+ .get_group_pins = samsung_get_group_pins,
+ .dt_node_to_map = samsung_dt_node_to_map,
+ .dt_free_map = samsung_dt_free_map,
+};
+
+/* check if the selector is a valid pin function selector */
+static int samsung_get_functions_count(struct pinctrl_dev *pctldev)
+{
+ struct samsung_pinctrl_drv_data *drvdata;
+
+ drvdata = pinctrl_dev_get_drvdata(pctldev);
+ return drvdata->nr_functions;
+}
+
+/* return the name of the pin function specified */
+static const char *samsung_pinmux_get_fname(struct pinctrl_dev *pctldev,
+ unsigned selector)
+{
+ struct samsung_pinctrl_drv_data *drvdata;
+
+ drvdata = pinctrl_dev_get_drvdata(pctldev);
+ return drvdata->pmx_functions[selector].name;
+}
+
+/* return the groups associated for the specified function selector */
+static int samsung_pinmux_get_groups(struct pinctrl_dev *pctldev,
+ unsigned selector, const char * const **groups,
+ unsigned * const num_groups)
+{
+ struct samsung_pinctrl_drv_data *drvdata;
+
+ drvdata = pinctrl_dev_get_drvdata(pctldev);
+ *groups = drvdata->pmx_functions[selector].groups;
+ *num_groups = drvdata->pmx_functions[selector].num_groups;
+ return 0;
+}
+
+/*
+ * given a pin number that is local to a pin controller, find out the pin bank
+ * and the register base of the pin bank.
+ */
+static void pin_to_reg_bank(struct samsung_pinctrl_drv_data *drvdata,
+ unsigned pin, void __iomem **reg, u32 *offset,
+ struct samsung_pin_bank **bank)
+{
+ struct samsung_pin_bank *b;
+
+ b = drvdata->pin_banks;
+
+ while ((pin >= b->pin_base) &&
+ ((b->pin_base + b->nr_pins - 1) < pin))
+ b++;
+
+ *reg = b->pctl_base + b->pctl_offset;
+ *offset = pin - b->pin_base;
+ if (bank)
+ *bank = b;
+}
+
+/* enable or disable a pinmux function */
+static void samsung_pinmux_setup(struct pinctrl_dev *pctldev, unsigned selector,
+ unsigned group)
+{
+ struct samsung_pinctrl_drv_data *drvdata;
+ const struct samsung_pin_bank_type *type;
+ struct samsung_pin_bank *bank;
+ void __iomem *reg;
+ u32 mask, shift, data, pin_offset;
+ unsigned long flags;
+ const struct samsung_pmx_func *func;
+ const struct samsung_pin_group *grp;
+
+ drvdata = pinctrl_dev_get_drvdata(pctldev);
+ func = &drvdata->pmx_functions[selector];
+ grp = &drvdata->pin_groups[group];
+
+ pin_to_reg_bank(drvdata, grp->pins[0] - drvdata->pin_base,
+ ®, &pin_offset, &bank);
+ type = bank->type;
+ mask = (1 << type->fld_width[PINCFG_TYPE_FUNC]) - 1;
+ shift = pin_offset * type->fld_width[PINCFG_TYPE_FUNC];
+ if (shift >= 32) {
+ /* Some banks have two config registers */
+ shift -= 32;
+ reg += 4;
+ }
+
+ spin_lock_irqsave(&bank->slock, flags);
+
+ data = readl(reg + type->reg_offset[PINCFG_TYPE_FUNC]);
+ data &= ~(mask << shift);
+ data |= func->val << shift;
+ writel(data, reg + type->reg_offset[PINCFG_TYPE_FUNC]);
+
+ spin_unlock_irqrestore(&bank->slock, flags);
+}
+
+/* enable a specified pinmux by writing to registers */
+static int samsung_pinmux_set_mux(struct pinctrl_dev *pctldev,
+ unsigned selector,
+ unsigned group)
+{
+ samsung_pinmux_setup(pctldev, selector, group);
+ return 0;
+}
+
+/* list of pinmux callbacks for the pinmux vertical in pinctrl core */
+static const struct pinmux_ops samsung_pinmux_ops = {
+ .get_functions_count = samsung_get_functions_count,
+ .get_function_name = samsung_pinmux_get_fname,
+ .get_function_groups = samsung_pinmux_get_groups,
+ .set_mux = samsung_pinmux_set_mux,
+};
+
+/* set or get the pin config settings for a specified pin */
+static int samsung_pinconf_rw(struct pinctrl_dev *pctldev, unsigned int pin,
+ unsigned long *config, bool set)
+{
+ struct samsung_pinctrl_drv_data *drvdata;
+ const struct samsung_pin_bank_type *type;
+ struct samsung_pin_bank *bank;
+ void __iomem *reg_base;
+ enum pincfg_type cfg_type = PINCFG_UNPACK_TYPE(*config);
+ u32 data, width, pin_offset, mask, shift;
+ u32 cfg_value, cfg_reg;
+ unsigned long flags;
+
+ drvdata = pinctrl_dev_get_drvdata(pctldev);
+ pin_to_reg_bank(drvdata, pin - drvdata->pin_base, ®_base,
+ &pin_offset, &bank);
+ type = bank->type;
+
+ if (cfg_type >= PINCFG_TYPE_NUM || !type->fld_width[cfg_type])
+ return -EINVAL;
+
+ width = type->fld_width[cfg_type];
+ cfg_reg = type->reg_offset[cfg_type];
+
+ spin_lock_irqsave(&bank->slock, flags);
+
+ mask = (1 << width) - 1;
+ shift = pin_offset * width;
+ data = readl(reg_base + cfg_reg);
+
+ if (set) {
+ cfg_value = PINCFG_UNPACK_VALUE(*config);
+ data &= ~(mask << shift);
+ data |= (cfg_value << shift);
+ writel(data, reg_base + cfg_reg);
+ } else {
+ data >>= shift;
+ data &= mask;
+ *config = PINCFG_PACK(cfg_type, data);
+ }
+
+ spin_unlock_irqrestore(&bank->slock, flags);
+
+ return 0;
+}
+
+/* set the pin config settings for a specified pin */
+static int samsung_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
+ unsigned long *configs, unsigned num_configs)
+{
+ int i, ret;
+
+ for (i = 0; i < num_configs; i++) {
+ ret = samsung_pinconf_rw(pctldev, pin, &configs[i], true);
+ if (ret < 0)
+ return ret;
+ } /* for each config */
+
+ return 0;
+}
+
+/* get the pin config settings for a specified pin */
+static int samsung_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin,
+ unsigned long *config)
+{
+ return samsung_pinconf_rw(pctldev, pin, config, false);
+}
+
+/* set the pin config settings for a specified pin group */
+static int samsung_pinconf_group_set(struct pinctrl_dev *pctldev,
+ unsigned group, unsigned long *configs,
+ unsigned num_configs)
+{
+ struct samsung_pinctrl_drv_data *drvdata;
+ const unsigned int *pins;
+ unsigned int cnt;
+
+ drvdata = pinctrl_dev_get_drvdata(pctldev);
+ pins = drvdata->pin_groups[group].pins;
+
+ for (cnt = 0; cnt < drvdata->pin_groups[group].num_pins; cnt++)
+ samsung_pinconf_set(pctldev, pins[cnt], configs, num_configs);
+
+ return 0;
+}
+
+/* get the pin config settings for a specified pin group */
+static int samsung_pinconf_group_get(struct pinctrl_dev *pctldev,
+ unsigned int group, unsigned long *config)
+{
+ struct samsung_pinctrl_drv_data *drvdata;
+ const unsigned int *pins;
+
+ drvdata = pinctrl_dev_get_drvdata(pctldev);
+ pins = drvdata->pin_groups[group].pins;
+ samsung_pinconf_get(pctldev, pins[0], config);
+ return 0;
+}
+
+/* list of pinconfig callbacks for pinconfig vertical in the pinctrl code */
+static const struct pinconf_ops samsung_pinconf_ops = {
+ .pin_config_get = samsung_pinconf_get,
+ .pin_config_set = samsung_pinconf_set,
+ .pin_config_group_get = samsung_pinconf_group_get,
+ .pin_config_group_set = samsung_pinconf_group_set,
+};
+
+/*
+ * The samsung_gpio_set_vlaue() should be called with "bank->slock" held
+ * to avoid race condition.
+ */
+static void samsung_gpio_set_value(struct gpio_chip *gc,
+ unsigned offset, int value)
+{
+ struct samsung_pin_bank *bank = gpiochip_get_data(gc);
+ const struct samsung_pin_bank_type *type = bank->type;
+ void __iomem *reg;
+ u32 data;
+
+ reg = bank->pctl_base + bank->pctl_offset;
+
+ data = readl(reg + type->reg_offset[PINCFG_TYPE_DAT]);
+ data &= ~(1 << offset);
+ if (value)
+ data |= 1 << offset;
+ writel(data, reg + type->reg_offset[PINCFG_TYPE_DAT]);
+}
+
+/* gpiolib gpio_set callback function */
+static void samsung_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
+{
+ struct samsung_pin_bank *bank = gpiochip_get_data(gc);
+ unsigned long flags;
+
+ spin_lock_irqsave(&bank->slock, flags);
+ samsung_gpio_set_value(gc, offset, value);
+ spin_unlock_irqrestore(&bank->slock, flags);
+}
+
+/* gpiolib gpio_get callback function */
+static int samsung_gpio_get(struct gpio_chip *gc, unsigned offset)
+{
+ void __iomem *reg;
+ u32 data;
+ struct samsung_pin_bank *bank = gpiochip_get_data(gc);
+ const struct samsung_pin_bank_type *type = bank->type;
+
+ reg = bank->pctl_base + bank->pctl_offset;
+
+ data = readl(reg + type->reg_offset[PINCFG_TYPE_DAT]);
+ data >>= offset;
+ data &= 1;
+ return data;
+}
+
+/*
+ * The samsung_gpio_set_direction() should be called with "bank->slock" held
+ * to avoid race condition.
+ * The calls to gpio_direction_output() and gpio_direction_input()
+ * leads to this function call.
+ */
+static int samsung_gpio_set_direction(struct gpio_chip *gc,
+ unsigned offset, bool input)
+{
+ const struct samsung_pin_bank_type *type;
+ struct samsung_pin_bank *bank;
+ void __iomem *reg;
+ u32 data, mask, shift;
+
+ bank = gpiochip_get_data(gc);
+ type = bank->type;
+
+ reg = bank->pctl_base + bank->pctl_offset
+ + type->reg_offset[PINCFG_TYPE_FUNC];
+
+ mask = (1 << type->fld_width[PINCFG_TYPE_FUNC]) - 1;
+ shift = offset * type->fld_width[PINCFG_TYPE_FUNC];
+ if (shift >= 32) {
+ /* Some banks have two config registers */
+ shift -= 32;
+ reg += 4;
+ }
+
+ data = readl(reg);
+ data &= ~(mask << shift);
+ if (!input)
+ data |= EXYNOS_PIN_FUNC_OUTPUT << shift;
+ writel(data, reg);
+
+ return 0;
+}
+
+/* gpiolib gpio_direction_input callback function. */
+static int samsung_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
+{
+ struct samsung_pin_bank *bank = gpiochip_get_data(gc);
+ unsigned long flags;
+ int ret;
+
+ spin_lock_irqsave(&bank->slock, flags);
+ ret = samsung_gpio_set_direction(gc, offset, true);
+ spin_unlock_irqrestore(&bank->slock, flags);
+ return ret;
+}
+
+/* gpiolib gpio_direction_output callback function. */
+static int samsung_gpio_direction_output(struct gpio_chip *gc, unsigned offset,
+ int value)
+{
+ struct samsung_pin_bank *bank = gpiochip_get_data(gc);
+ unsigned long flags;
+ int ret;
+
+ spin_lock_irqsave(&bank->slock, flags);
+ samsung_gpio_set_value(gc, offset, value);
+ ret = samsung_gpio_set_direction(gc, offset, false);
+ spin_unlock_irqrestore(&bank->slock, flags);
+
+ return ret;
+}
+
+/*
+ * gpiolib gpio_to_irq callback function. Creates a mapping between a GPIO pin
+ * and a virtual IRQ, if not already present.
+ */
+static int samsung_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
+{
+ struct samsung_pin_bank *bank = gpiochip_get_data(gc);
+ unsigned int virq;
+
+ if (!bank->irq_domain)
+ return -ENXIO;
+
+ virq = irq_create_mapping(bank->irq_domain, offset);
+
+ return (virq) ? : -ENXIO;
+}
+
+static struct samsung_pin_group *samsung_pinctrl_create_groups(
+ struct device *dev,
+ struct samsung_pinctrl_drv_data *drvdata,
+ unsigned int *cnt)
+{
+ struct pinctrl_desc *ctrldesc = &drvdata->pctl;
+ struct samsung_pin_group *groups, *grp;
+ const struct pinctrl_pin_desc *pdesc;
+ int i;
+
+ groups = devm_kzalloc(dev, ctrldesc->npins * sizeof(*groups),
+ GFP_KERNEL);
+ if (!groups)
+ return ERR_PTR(-EINVAL);
+ grp = groups;
+
+ pdesc = ctrldesc->pins;
+ for (i = 0; i < ctrldesc->npins; ++i, ++pdesc, ++grp) {
+ grp->name = pdesc->name;
+ grp->pins = &pdesc->number;
+ grp->num_pins = 1;
+ }
+
+ *cnt = ctrldesc->npins;
+ return groups;
+}
+
+static int samsung_pinctrl_create_function(struct device *dev,
+ struct samsung_pinctrl_drv_data *drvdata,
+ struct device_node *func_np,
+ struct samsung_pmx_func *func)
+{
+ int npins;
+ int ret;
+ int i;
+
+ if (of_property_read_u32(func_np, "samsung,pin-function", &func->val))
+ return 0;
+
+ npins = of_property_count_strings(func_np, "samsung,pins");
+ if (npins < 1) {
+ dev_err(dev, "invalid pin list in %pOFn node", func_np);
+ return -EINVAL;
+ }
+
+ func->name = func_np->full_name;
+
+ func->groups = devm_kzalloc(dev, npins * sizeof(char *), GFP_KERNEL);
+ if (!func->groups)
+ return -ENOMEM;
+
+ for (i = 0; i < npins; ++i) {
+ const char *gname;
+
+ ret = of_property_read_string_index(func_np, "samsung,pins",
+ i, &gname);
+ if (ret) {
+ dev_err(dev,
+ "failed to read pin name %d from %pOFn node\n",
+ i, func_np);
+ return ret;
+ }
+
+ func->groups[i] = gname;
+ }
+
+ func->num_groups = npins;
+ return 1;
+}
+
+static struct samsung_pmx_func *samsung_pinctrl_create_functions(
+ struct device *dev,
+ struct samsung_pinctrl_drv_data *drvdata,
+ unsigned int *cnt)
+{
+ struct samsung_pmx_func *functions, *func;
+ struct device_node *dev_np = dev->of_node;
+ struct device_node *cfg_np;
+ unsigned int func_cnt = 0;
+ int ret;
+
+ /*
+ * Iterate over all the child nodes of the pin controller node
+ * and create pin groups and pin function lists.
+ */
+ for_each_child_of_node(dev_np, cfg_np) {
+ struct device_node *func_np;
+
+ if (!of_get_child_count(cfg_np)) {
+ if (!of_find_property(cfg_np,
+ "samsung,pin-function", NULL))
+ continue;
+ ++func_cnt;
+ continue;
+ }
+
+ for_each_child_of_node(cfg_np, func_np) {
+ if (!of_find_property(func_np,
+ "samsung,pin-function", NULL))
+ continue;
+ ++func_cnt;
+ }
+ }
+
+ functions = devm_kzalloc(dev, func_cnt * sizeof(*functions),
+ GFP_KERNEL);
+ if (!functions)
+ return ERR_PTR(-ENOMEM);
+ func = functions;
+
+ /*
+ * Iterate over all the child nodes of the pin controller node
+ * and create pin groups and pin function lists.
+ */
+ func_cnt = 0;
+ for_each_child_of_node(dev_np, cfg_np) {
+ struct device_node *func_np;
+
+ if (!of_get_child_count(cfg_np)) {
+ ret = samsung_pinctrl_create_function(dev, drvdata,
+ cfg_np, func);
+ if (ret < 0) {
+ of_node_put(cfg_np);
+ return ERR_PTR(ret);
+ }
+ if (ret > 0) {
+ ++func;
+ ++func_cnt;
+ }
+ continue;
+ }
+
+ for_each_child_of_node(cfg_np, func_np) {
+ ret = samsung_pinctrl_create_function(dev, drvdata,
+ func_np, func);
+ if (ret < 0) {
+ of_node_put(func_np);
+ of_node_put(cfg_np);
+ return ERR_PTR(ret);
+ }
+ if (ret > 0) {
+ ++func;
+ ++func_cnt;
+ }
+ }
+ }
+
+ *cnt = func_cnt;
+ return functions;
+}
+
+/*
+ * Parse the information about all the available pin groups and pin functions
+ * from device node of the pin-controller. A pin group is formed with all
+ * the pins listed in the "samsung,pins" property.
+ */
+
+static int samsung_pinctrl_parse_dt(struct platform_device *pdev,
+ struct samsung_pinctrl_drv_data *drvdata)
+{
+ struct device *dev = &pdev->dev;
+ struct samsung_pin_group *groups;
+ struct samsung_pmx_func *functions;
+ unsigned int grp_cnt = 0, func_cnt = 0;
+
+ groups = samsung_pinctrl_create_groups(dev, drvdata, &grp_cnt);
+ if (IS_ERR(groups)) {
+ dev_err(dev, "failed to parse pin groups\n");
+ return PTR_ERR(groups);
+ }
+
+ functions = samsung_pinctrl_create_functions(dev, drvdata, &func_cnt);
+ if (IS_ERR(functions)) {
+ dev_err(dev, "failed to parse pin functions\n");
+ return PTR_ERR(functions);
+ }
+
+ drvdata->pin_groups = groups;
+ drvdata->nr_groups = grp_cnt;
+ drvdata->pmx_functions = functions;
+ drvdata->nr_functions = func_cnt;
+
+ return 0;
+}
+
+/* register the pinctrl interface with the pinctrl subsystem */
+static int samsung_pinctrl_register(struct platform_device *pdev,
+ struct samsung_pinctrl_drv_data *drvdata)
+{
+ struct pinctrl_desc *ctrldesc = &drvdata->pctl;
+ struct pinctrl_pin_desc *pindesc, *pdesc;
+ struct samsung_pin_bank *pin_bank;
+ char *pin_names;
+ int pin, bank, ret;
+
+ ctrldesc->name = "samsung-pinctrl";
+ ctrldesc->owner = THIS_MODULE;
+ ctrldesc->pctlops = &samsung_pctrl_ops;
+ ctrldesc->pmxops = &samsung_pinmux_ops;
+ ctrldesc->confops = &samsung_pinconf_ops;
+
+ pindesc = devm_kzalloc(&pdev->dev, sizeof(*pindesc) *
+ drvdata->nr_pins, GFP_KERNEL);
+ if (!pindesc)
+ return -ENOMEM;
+ ctrldesc->pins = pindesc;
+ ctrldesc->npins = drvdata->nr_pins;
+
+ /* dynamically populate the pin number and pin name for pindesc */
+ for (pin = 0, pdesc = pindesc; pin < ctrldesc->npins; pin++, pdesc++)
+ pdesc->number = pin + drvdata->pin_base;
+
+ /*
+ * allocate space for storing the dynamically generated names for all
+ * the pins which belong to this pin-controller.
+ */
+ pin_names = devm_kzalloc(&pdev->dev, sizeof(char) * PIN_NAME_LENGTH *
+ drvdata->nr_pins, GFP_KERNEL);
+ if (!pin_names)
+ return -ENOMEM;
+
+ /* for each pin, the name of the pin is pin-bank name + pin number */
+ for (bank = 0; bank < drvdata->nr_banks; bank++) {
+ pin_bank = &drvdata->pin_banks[bank];
+ for (pin = 0; pin < pin_bank->nr_pins; pin++) {
+ sprintf(pin_names, "%s-%d", pin_bank->name, pin);
+ pdesc = pindesc + pin_bank->pin_base + pin;
+ pdesc->name = pin_names;
+ pin_names += PIN_NAME_LENGTH;
+ }
+ }
+
+ ret = samsung_pinctrl_parse_dt(pdev, drvdata);
+ if (ret)
+ return ret;
+
+ drvdata->pctl_dev = devm_pinctrl_register(&pdev->dev, ctrldesc,
+ drvdata);
+ if (IS_ERR(drvdata->pctl_dev)) {
+ dev_err(&pdev->dev, "could not register pinctrl driver\n");
+ return PTR_ERR(drvdata->pctl_dev);
+ }
+
+ for (bank = 0; bank < drvdata->nr_banks; ++bank) {
+ pin_bank = &drvdata->pin_banks[bank];
+ pin_bank->grange.name = pin_bank->name;
+ pin_bank->grange.id = bank;
+ pin_bank->grange.pin_base = drvdata->pin_base
+ + pin_bank->pin_base;
+ pin_bank->grange.base = pin_bank->grange.pin_base;
+ pin_bank->grange.npins = pin_bank->gpio_chip.ngpio;
+ pin_bank->grange.gc = &pin_bank->gpio_chip;
+ pinctrl_add_gpio_range(drvdata->pctl_dev, &pin_bank->grange);
+ }
+
+ return 0;
+}
+
+/* unregister the pinctrl interface with the pinctrl subsystem */
+static int samsung_pinctrl_unregister(struct platform_device *pdev,
+ struct samsung_pinctrl_drv_data *drvdata)
+{
+ struct samsung_pin_bank *bank = drvdata->pin_banks;
+ int i;
+
+ for (i = 0; i < drvdata->nr_banks; ++i, ++bank)
+ pinctrl_remove_gpio_range(drvdata->pctl_dev, &bank->grange);
+
+ return 0;
+}
+
+static const struct gpio_chip samsung_gpiolib_chip = {
+ .request = gpiochip_generic_request,
+ .free = gpiochip_generic_free,
+ .set = samsung_gpio_set,
+ .get = samsung_gpio_get,
+ .direction_input = samsung_gpio_direction_input,
+ .direction_output = samsung_gpio_direction_output,
+ .to_irq = samsung_gpio_to_irq,
+ .owner = THIS_MODULE,
+};
+
+/* register the gpiolib interface with the gpiolib subsystem */
+static int samsung_gpiolib_register(struct platform_device *pdev,
+ struct samsung_pinctrl_drv_data *drvdata)
+{
+ struct samsung_pin_bank *bank = drvdata->pin_banks;
+ struct gpio_chip *gc;
+ int ret;
+ int i;
+
+ for (i = 0; i < drvdata->nr_banks; ++i, ++bank) {
+ bank->gpio_chip = samsung_gpiolib_chip;
+
+ gc = &bank->gpio_chip;
+ gc->base = bank->grange.base;
+ gc->ngpio = bank->nr_pins;
+ gc->parent = &pdev->dev;
+ gc->of_node = bank->of_node;
+ gc->label = bank->name;
+
+ ret = devm_gpiochip_add_data(&pdev->dev, gc, bank);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to register gpio_chip %s, error code: %d\n",
+ gc->label, ret);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static const struct samsung_pin_ctrl *
+samsung_pinctrl_get_soc_data_for_of_alias(struct platform_device *pdev)
+{
+ struct device_node *node = pdev->dev.of_node;
+ const struct samsung_pinctrl_of_match_data *of_data;
+ int id;
+
+ id = of_alias_get_id(node, "pinctrl");
+ if (id < 0) {
+ dev_err(&pdev->dev, "failed to get alias id\n");
+ return NULL;
+ }
+
+ of_data = of_device_get_match_data(&pdev->dev);
+ if (id >= of_data->num_ctrl) {
+ dev_err(&pdev->dev, "invalid alias id %d\n", id);
+ return NULL;
+ }
+
+ return &(of_data->ctrl[id]);
+}
+
+/* retrieve the soc specific data */
+static const struct samsung_pin_ctrl *
+samsung_pinctrl_get_soc_data(struct samsung_pinctrl_drv_data *d,
+ struct platform_device *pdev)
+{
+ struct device_node *node = pdev->dev.of_node;
+ struct device_node *np;
+ const struct samsung_pin_bank_data *bdata;
+ const struct samsung_pin_ctrl *ctrl;
+ struct samsung_pin_bank *bank;
+ struct resource *res;
+ void __iomem *virt_base[SAMSUNG_PINCTRL_NUM_RESOURCES];
+ unsigned int i;
+
+ ctrl = samsung_pinctrl_get_soc_data_for_of_alias(pdev);
+ if (!ctrl)
+ return ERR_PTR(-ENOENT);
+
+ d->suspend = ctrl->suspend;
+ d->resume = ctrl->resume;
+ d->nr_banks = ctrl->nr_banks;
+ d->pin_banks = devm_kcalloc(&pdev->dev, d->nr_banks,
+ sizeof(*d->pin_banks), GFP_KERNEL);
+ if (!d->pin_banks)
+ return ERR_PTR(-ENOMEM);
+
+ if (ctrl->nr_ext_resources + 1 > SAMSUNG_PINCTRL_NUM_RESOURCES)
+ return ERR_PTR(-EINVAL);
+
+ for (i = 0; i < ctrl->nr_ext_resources + 1; i++) {
+ res = platform_get_resource(pdev, IORESOURCE_MEM, i);
+ if (!res) {
+ dev_err(&pdev->dev, "failed to get mem%d resource\n", i);
+ return ERR_PTR(-EINVAL);
+ }
+ virt_base[i] = devm_ioremap(&pdev->dev, res->start,
+ resource_size(res));
+ if (!virt_base[i]) {
+ dev_err(&pdev->dev, "failed to ioremap %pR\n", res);
+ return ERR_PTR(-EIO);
+ }
+ }
+
+ bank = d->pin_banks;
+ bdata = ctrl->pin_banks;
+ for (i = 0; i < ctrl->nr_banks; ++i, ++bdata, ++bank) {
+ bank->type = bdata->type;
+ bank->pctl_offset = bdata->pctl_offset;
+ bank->nr_pins = bdata->nr_pins;
+ bank->eint_func = bdata->eint_func;
+ bank->eint_type = bdata->eint_type;
+ bank->eint_mask = bdata->eint_mask;
+ bank->eint_offset = bdata->eint_offset;
+ bank->name = bdata->name;
+
+ spin_lock_init(&bank->slock);
+ bank->drvdata = d;
+ bank->pin_base = d->nr_pins;
+ d->nr_pins += bank->nr_pins;
+
+ bank->eint_base = virt_base[0];
+ bank->pctl_base = virt_base[bdata->pctl_res_idx];
+ }
+ /*
+ * Legacy platforms should provide only one resource with IO memory.
+ * Store it as virt_base because legacy driver needs to access it
+ * through samsung_pinctrl_drv_data.
+ */
+ d->virt_base = virt_base[0];
+
+ for_each_child_of_node(node, np) {
+ if (!of_find_property(np, "gpio-controller", NULL))
+ continue;
+ bank = d->pin_banks;
+ for (i = 0; i < d->nr_banks; ++i, ++bank) {
+ if (!strcmp(bank->name, np->name)) {
+ bank->of_node = np;
+ break;
+ }
+ }
+ }
+
+ d->pin_base = pin_base;
+ pin_base += d->nr_pins;
+
+ return ctrl;
+}
+
+static int samsung_pinctrl_probe(struct platform_device *pdev)
+{
+ struct samsung_pinctrl_drv_data *drvdata;
+ const struct samsung_pin_ctrl *ctrl;
+ struct device *dev = &pdev->dev;
+ struct resource *res;
+ int ret;
+
+ drvdata = devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL);
+ if (!drvdata)
+ return -ENOMEM;
+
+ ctrl = samsung_pinctrl_get_soc_data(drvdata, pdev);
+ if (IS_ERR(ctrl)) {
+ dev_err(&pdev->dev, "driver data not available\n");
+ return PTR_ERR(ctrl);
+ }
+ drvdata->dev = dev;
+
+ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (res)
+ drvdata->irq = res->start;
+
+ if (ctrl->retention_data) {
+ drvdata->retention_ctrl = ctrl->retention_data->init(drvdata,
+ ctrl->retention_data);
+ if (IS_ERR(drvdata->retention_ctrl))
+ return PTR_ERR(drvdata->retention_ctrl);
+ }
+
+ ret = samsung_pinctrl_register(pdev, drvdata);
+ if (ret)
+ return ret;
+
+ ret = samsung_gpiolib_register(pdev, drvdata);
+ if (ret) {
+ samsung_pinctrl_unregister(pdev, drvdata);
+ return ret;
+ }
+
+ if (ctrl->eint_gpio_init)
+ ctrl->eint_gpio_init(drvdata);
+ if (ctrl->eint_wkup_init)
+ ctrl->eint_wkup_init(drvdata);
+
+ platform_set_drvdata(pdev, drvdata);
+
+ return 0;
+}
+
+/**
+ * samsung_pinctrl_suspend - save pinctrl state for suspend
+ *
+ * Save data for all banks handled by this device.
+ */
+static int __maybe_unused samsung_pinctrl_suspend(struct device *dev)
+{
+ struct samsung_pinctrl_drv_data *drvdata = dev_get_drvdata(dev);
+ int i;
+
+ for (i = 0; i < drvdata->nr_banks; i++) {
+ struct samsung_pin_bank *bank = &drvdata->pin_banks[i];
+ void __iomem *reg = bank->pctl_base + bank->pctl_offset;
+ const u8 *offs = bank->type->reg_offset;
+ const u8 *widths = bank->type->fld_width;
+ enum pincfg_type type;
+
+ /* Registers without a powerdown config aren't lost */
+ if (!widths[PINCFG_TYPE_CON_PDN])
+ continue;
+
+ for (type = 0; type < PINCFG_TYPE_NUM; type++)
+ if (widths[type])
+ bank->pm_save[type] = readl(reg + offs[type]);
+
+ if (widths[PINCFG_TYPE_FUNC] * bank->nr_pins > 32) {
+ /* Some banks have two config registers */
+ bank->pm_save[PINCFG_TYPE_NUM] =
+ readl(reg + offs[PINCFG_TYPE_FUNC] + 4);
+ pr_debug("Save %s @ %p (con %#010x %08x)\n",
+ bank->name, reg,
+ bank->pm_save[PINCFG_TYPE_FUNC],
+ bank->pm_save[PINCFG_TYPE_NUM]);
+ } else {
+ pr_debug("Save %s @ %p (con %#010x)\n", bank->name,
+ reg, bank->pm_save[PINCFG_TYPE_FUNC]);
+ }
+ }
+
+ if (drvdata->suspend)
+ drvdata->suspend(drvdata);
+ if (drvdata->retention_ctrl && drvdata->retention_ctrl->enable)
+ drvdata->retention_ctrl->enable(drvdata);
+
+ return 0;
+}
+
+/**
+ * samsung_pinctrl_resume - restore pinctrl state from suspend
+ *
+ * Restore one of the banks that was saved during suspend.
+ *
+ * We don't bother doing anything complicated to avoid glitching lines since
+ * we're called before pad retention is turned off.
+ */
+static int __maybe_unused samsung_pinctrl_resume(struct device *dev)
+{
+ struct samsung_pinctrl_drv_data *drvdata = dev_get_drvdata(dev);
+ int i;
+
+ if (drvdata->resume)
+ drvdata->resume(drvdata);
+
+ for (i = 0; i < drvdata->nr_banks; i++) {
+ struct samsung_pin_bank *bank = &drvdata->pin_banks[i];
+ void __iomem *reg = bank->pctl_base + bank->pctl_offset;
+ const u8 *offs = bank->type->reg_offset;
+ const u8 *widths = bank->type->fld_width;
+ enum pincfg_type type;
+
+ /* Registers without a powerdown config aren't lost */
+ if (!widths[PINCFG_TYPE_CON_PDN])
+ continue;
+
+ if (widths[PINCFG_TYPE_FUNC] * bank->nr_pins > 32) {
+ /* Some banks have two config registers */
+ pr_debug("%s @ %p (con %#010x %08x => %#010x %08x)\n",
+ bank->name, reg,
+ readl(reg + offs[PINCFG_TYPE_FUNC]),
+ readl(reg + offs[PINCFG_TYPE_FUNC] + 4),
+ bank->pm_save[PINCFG_TYPE_FUNC],
+ bank->pm_save[PINCFG_TYPE_NUM]);
+ writel(bank->pm_save[PINCFG_TYPE_NUM],
+ reg + offs[PINCFG_TYPE_FUNC] + 4);
+ } else {
+ pr_debug("%s @ %p (con %#010x => %#010x)\n", bank->name,
+ reg, readl(reg + offs[PINCFG_TYPE_FUNC]),
+ bank->pm_save[PINCFG_TYPE_FUNC]);
+ }
+ for (type = 0; type < PINCFG_TYPE_NUM; type++)
+ if (widths[type])
+ writel(bank->pm_save[type], reg + offs[type]);
+ }
+
+ if (drvdata->retention_ctrl && drvdata->retention_ctrl->disable)
+ drvdata->retention_ctrl->disable(drvdata);
+
+ return 0;
+}
+
+static const struct of_device_id samsung_pinctrl_dt_match[] = {
+#ifdef CONFIG_PINCTRL_EXYNOS_ARM
+ { .compatible = "samsung,exynos3250-pinctrl",
+ .data = &exynos3250_of_data },
+ { .compatible = "samsung,exynos4210-pinctrl",
+ .data = &exynos4210_of_data },
+ { .compatible = "samsung,exynos4x12-pinctrl",
+ .data = &exynos4x12_of_data },
+ { .compatible = "samsung,exynos5250-pinctrl",
+ .data = &exynos5250_of_data },
+ { .compatible = "samsung,exynos5260-pinctrl",
+ .data = &exynos5260_of_data },
+ { .compatible = "samsung,exynos5410-pinctrl",
+ .data = &exynos5410_of_data },
+ { .compatible = "samsung,exynos5420-pinctrl",
+ .data = &exynos5420_of_data },
+ { .compatible = "samsung,s5pv210-pinctrl",
+ .data = &s5pv210_of_data },
+#endif
+#ifdef CONFIG_PINCTRL_EXYNOS_ARM64
+ { .compatible = "samsung,exynos5433-pinctrl",
+ .data = &exynos5433_of_data },
+ { .compatible = "samsung,exynos7-pinctrl",
+ .data = &exynos7_of_data },
+#endif
+#ifdef CONFIG_PINCTRL_S3C64XX
+ { .compatible = "samsung,s3c64xx-pinctrl",
+ .data = &s3c64xx_of_data },
+#endif
+#ifdef CONFIG_PINCTRL_S3C24XX
+ { .compatible = "samsung,s3c2412-pinctrl",
+ .data = &s3c2412_of_data },
+ { .compatible = "samsung,s3c2416-pinctrl",
+ .data = &s3c2416_of_data },
+ { .compatible = "samsung,s3c2440-pinctrl",
+ .data = &s3c2440_of_data },
+ { .compatible = "samsung,s3c2450-pinctrl",
+ .data = &s3c2450_of_data },
+#endif
+ {},
+};
+
+static const struct dev_pm_ops samsung_pinctrl_pm_ops = {
+ SET_LATE_SYSTEM_SLEEP_PM_OPS(samsung_pinctrl_suspend,
+ samsung_pinctrl_resume)
+};
+
+static struct platform_driver samsung_pinctrl_driver = {
+ .probe = samsung_pinctrl_probe,
+ .driver = {
+ .name = "samsung-pinctrl",
+ .of_match_table = samsung_pinctrl_dt_match,
+ .suppress_bind_attrs = true,
+ .pm = &samsung_pinctrl_pm_ops,
+ },
+};
+
+static int __init samsung_pinctrl_drv_register(void)
+{
+ return platform_driver_register(&samsung_pinctrl_driver);
+}
+postcore_initcall(samsung_pinctrl_drv_register);
diff --git a/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-samsung.h b/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-samsung.h
new file mode 100644
index 0000000..ae932e0
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/pinctrl/samsung/pinctrl-samsung.h
@@ -0,0 +1,342 @@
+/*
+ * pin-controller/pin-mux/pin-config/gpio-driver for Samsung's SoC's.
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ * Copyright (c) 2012 Linaro Ltd
+ * http://www.linaro.org
+ *
+ * Author: Thomas Abraham <thomas.ab@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __PINCTRL_SAMSUNG_H
+#define __PINCTRL_SAMSUNG_H
+
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/pinctrl/machine.h>
+
+#include <linux/gpio.h>
+
+/**
+ * enum pincfg_type - possible pin configuration types supported.
+ * @PINCFG_TYPE_FUNC: Function configuration.
+ * @PINCFG_TYPE_DAT: Pin value configuration.
+ * @PINCFG_TYPE_PUD: Pull up/down configuration.
+ * @PINCFG_TYPE_DRV: Drive strength configuration.
+ * @PINCFG_TYPE_CON_PDN: Pin function in power down mode.
+ * @PINCFG_TYPE_PUD_PDN: Pull up/down configuration in power down mode.
+ */
+enum pincfg_type {
+ PINCFG_TYPE_FUNC,
+ PINCFG_TYPE_DAT,
+ PINCFG_TYPE_PUD,
+ PINCFG_TYPE_DRV,
+ PINCFG_TYPE_CON_PDN,
+ PINCFG_TYPE_PUD_PDN,
+
+ PINCFG_TYPE_NUM
+};
+
+/*
+ * pin configuration (pull up/down and drive strength) type and its value are
+ * packed together into a 16-bits. The upper 8-bits represent the configuration
+ * type and the lower 8-bits hold the value of the configuration type.
+ */
+#define PINCFG_TYPE_MASK 0xFF
+#define PINCFG_VALUE_SHIFT 8
+#define PINCFG_VALUE_MASK (0xFF << PINCFG_VALUE_SHIFT)
+#define PINCFG_PACK(type, value) (((value) << PINCFG_VALUE_SHIFT) | type)
+#define PINCFG_UNPACK_TYPE(cfg) ((cfg) & PINCFG_TYPE_MASK)
+#define PINCFG_UNPACK_VALUE(cfg) (((cfg) & PINCFG_VALUE_MASK) >> \
+ PINCFG_VALUE_SHIFT)
+/**
+ * enum eint_type - possible external interrupt types.
+ * @EINT_TYPE_NONE: bank does not support external interrupts
+ * @EINT_TYPE_GPIO: bank supportes external gpio interrupts
+ * @EINT_TYPE_WKUP: bank supportes external wakeup interrupts
+ * @EINT_TYPE_WKUP_MUX: bank supports multiplexed external wakeup interrupts
+ *
+ * Samsung GPIO controller groups all the available pins into banks. The pins
+ * in a pin bank can support external gpio interrupts or external wakeup
+ * interrupts or no interrupts at all. From a software perspective, the only
+ * difference between external gpio and external wakeup interrupts is that
+ * the wakeup interrupts can additionally wakeup the system if it is in
+ * suspended state.
+ */
+enum eint_type {
+ EINT_TYPE_NONE,
+ EINT_TYPE_GPIO,
+ EINT_TYPE_WKUP,
+ EINT_TYPE_WKUP_MUX,
+};
+
+/* maximum length of a pin in pin descriptor (example: "gpa0-0") */
+#define PIN_NAME_LENGTH 10
+
+#define PIN_GROUP(n, p, f) \
+ { \
+ .name = n, \
+ .pins = p, \
+ .num_pins = ARRAY_SIZE(p), \
+ .func = f \
+ }
+
+#define PMX_FUNC(n, g) \
+ { \
+ .name = n, \
+ .groups = g, \
+ .num_groups = ARRAY_SIZE(g), \
+ }
+
+struct samsung_pinctrl_drv_data;
+
+/**
+ * struct samsung_pin_bank_type: pin bank type description
+ * @fld_width: widths of configuration bitfields (0 if unavailable)
+ * @reg_offset: offsets of configuration registers (don't care of width is 0)
+ */
+struct samsung_pin_bank_type {
+ u8 fld_width[PINCFG_TYPE_NUM];
+ u8 reg_offset[PINCFG_TYPE_NUM];
+};
+
+/**
+ * struct samsung_pin_bank_data: represent a controller pin-bank (init data).
+ * @type: type of the bank (register offsets and bitfield widths)
+ * @pctl_offset: starting offset of the pin-bank registers.
+ * @pctl_res_idx: index of base address for pin-bank registers.
+ * @nr_pins: number of pins included in this bank.
+ * @eint_func: function to set in CON register to configure pin as EINT.
+ * @eint_type: type of the external interrupt supported by the bank.
+ * @eint_mask: bit mask of pins which support EINT function.
+ * @eint_offset: SoC-specific EINT register or interrupt offset of bank.
+ * @name: name to be prefixed for each pin in this pin bank.
+ */
+struct samsung_pin_bank_data {
+ const struct samsung_pin_bank_type *type;
+ u32 pctl_offset;
+ u8 pctl_res_idx;
+ u8 nr_pins;
+ u8 eint_func;
+ enum eint_type eint_type;
+ u32 eint_mask;
+ u32 eint_offset;
+ const char *name;
+};
+
+/**
+ * struct samsung_pin_bank: represent a controller pin-bank.
+ * @type: type of the bank (register offsets and bitfield widths)
+ * @pctl_base: base address of the pin-bank registers
+ * @pctl_offset: starting offset of the pin-bank registers.
+ * @nr_pins: number of pins included in this bank.
+ * @eint_base: base address of the pin-bank EINT registers.
+ * @eint_func: function to set in CON register to configure pin as EINT.
+ * @eint_type: type of the external interrupt supported by the bank.
+ * @eint_mask: bit mask of pins which support EINT function.
+ * @eint_offset: SoC-specific EINT register or interrupt offset of bank.
+ * @name: name to be prefixed for each pin in this pin bank.
+ * @pin_base: starting pin number of the bank.
+ * @soc_priv: per-bank private data for SoC-specific code.
+ * @of_node: OF node of the bank.
+ * @drvdata: link to controller driver data
+ * @irq_domain: IRQ domain of the bank.
+ * @gpio_chip: GPIO chip of the bank.
+ * @grange: linux gpio pin range supported by this bank.
+ * @irq_chip: link to irq chip for external gpio and wakeup interrupts.
+ * @slock: spinlock protecting bank registers
+ * @pm_save: saved register values during suspend
+ */
+struct samsung_pin_bank {
+ const struct samsung_pin_bank_type *type;
+ void __iomem *pctl_base;
+ u32 pctl_offset;
+ u8 nr_pins;
+ void __iomem *eint_base;
+ u8 eint_func;
+ enum eint_type eint_type;
+ u32 eint_mask;
+ u32 eint_offset;
+ const char *name;
+
+ u32 pin_base;
+ void *soc_priv;
+ struct device_node *of_node;
+ struct samsung_pinctrl_drv_data *drvdata;
+ struct irq_domain *irq_domain;
+ struct gpio_chip gpio_chip;
+ struct pinctrl_gpio_range grange;
+ struct exynos_irq_chip *irq_chip;
+ spinlock_t slock;
+
+ u32 pm_save[PINCFG_TYPE_NUM + 1]; /* +1 to handle double CON registers*/
+};
+
+/**
+ * struct samsung_retention_data: runtime pin-bank retention control data.
+ * @regs: array of PMU registers to control pad retention.
+ * @nr_regs: number of registers in @regs array.
+ * @value: value to store to registers to turn off retention.
+ * @refcnt: atomic counter if retention control affects more than one bank.
+ * @priv: retention control code private data
+ * @enable: platform specific callback to enter retention mode.
+ * @disable: platform specific callback to exit retention mode.
+ **/
+struct samsung_retention_ctrl {
+ const u32 *regs;
+ int nr_regs;
+ u32 value;
+ atomic_t *refcnt;
+ void *priv;
+ void (*enable)(struct samsung_pinctrl_drv_data *);
+ void (*disable)(struct samsung_pinctrl_drv_data *);
+};
+
+/**
+ * struct samsung_retention_data: represent a pin-bank retention control data.
+ * @regs: array of PMU registers to control pad retention.
+ * @nr_regs: number of registers in @regs array.
+ * @value: value to store to registers to turn off retention.
+ * @refcnt: atomic counter if retention control affects more than one bank.
+ * @init: platform specific callback to initialize retention control.
+ **/
+struct samsung_retention_data {
+ const u32 *regs;
+ int nr_regs;
+ u32 value;
+ atomic_t *refcnt;
+ struct samsung_retention_ctrl *(*init)(struct samsung_pinctrl_drv_data *,
+ const struct samsung_retention_data *);
+};
+
+/**
+ * struct samsung_pin_ctrl: represent a pin controller.
+ * @pin_banks: list of pin banks included in this controller.
+ * @nr_banks: number of pin banks.
+ * @nr_ext_resources: number of the extra base address for pin banks.
+ * @retention_data: configuration data for retention control.
+ * @eint_gpio_init: platform specific callback to setup the external gpio
+ * interrupts for the controller.
+ * @eint_wkup_init: platform specific callback to setup the external wakeup
+ * interrupts for the controller.
+ */
+struct samsung_pin_ctrl {
+ const struct samsung_pin_bank_data *pin_banks;
+ unsigned int nr_banks;
+ unsigned int nr_ext_resources;
+ const struct samsung_retention_data *retention_data;
+
+ int (*eint_gpio_init)(struct samsung_pinctrl_drv_data *);
+ int (*eint_wkup_init)(struct samsung_pinctrl_drv_data *);
+ void (*suspend)(struct samsung_pinctrl_drv_data *);
+ void (*resume)(struct samsung_pinctrl_drv_data *);
+};
+
+/**
+ * struct samsung_pinctrl_drv_data: wrapper for holding driver data together.
+ * @node: global list node
+ * @virt_base: register base address of the controller; this will be equal
+ * to each bank samsung_pin_bank->pctl_base and used on legacy
+ * platforms (like S3C24XX or S3C64XX) which has to access the base
+ * through samsung_pinctrl_drv_data, not samsung_pin_bank).
+ * @dev: device instance representing the controller.
+ * @irq: interrpt number used by the controller to notify gpio interrupts.
+ * @ctrl: pin controller instance managed by the driver.
+ * @pctl: pin controller descriptor registered with the pinctrl subsystem.
+ * @pctl_dev: cookie representing pinctrl device instance.
+ * @pin_groups: list of pin groups available to the driver.
+ * @nr_groups: number of such pin groups.
+ * @pmx_functions: list of pin functions available to the driver.
+ * @nr_function: number of such pin functions.
+ * @pin_base: starting system wide pin number.
+ * @nr_pins: number of pins supported by the controller.
+ * @retention_ctrl: retention control runtime data.
+ */
+struct samsung_pinctrl_drv_data {
+ struct list_head node;
+ void __iomem *virt_base;
+ struct device *dev;
+ int irq;
+
+ struct pinctrl_desc pctl;
+ struct pinctrl_dev *pctl_dev;
+
+ const struct samsung_pin_group *pin_groups;
+ unsigned int nr_groups;
+ const struct samsung_pmx_func *pmx_functions;
+ unsigned int nr_functions;
+
+ struct samsung_pin_bank *pin_banks;
+ unsigned int nr_banks;
+ unsigned int pin_base;
+ unsigned int nr_pins;
+
+ struct samsung_retention_ctrl *retention_ctrl;
+
+ void (*suspend)(struct samsung_pinctrl_drv_data *);
+ void (*resume)(struct samsung_pinctrl_drv_data *);
+};
+
+/**
+ * struct samsung_pinctrl_of_match_data: OF match device specific configuration data.
+ * @ctrl: array of pin controller data.
+ * @num_ctrl: size of array @ctrl.
+ */
+struct samsung_pinctrl_of_match_data {
+ const struct samsung_pin_ctrl *ctrl;
+ unsigned int num_ctrl;
+};
+
+/**
+ * struct samsung_pin_group: represent group of pins of a pinmux function.
+ * @name: name of the pin group, used to lookup the group.
+ * @pins: the pins included in this group.
+ * @num_pins: number of pins included in this group.
+ * @func: the function number to be programmed when selected.
+ */
+struct samsung_pin_group {
+ const char *name;
+ const unsigned int *pins;
+ u8 num_pins;
+ u8 func;
+};
+
+/**
+ * struct samsung_pmx_func: represent a pin function.
+ * @name: name of the pin function, used to lookup the function.
+ * @groups: one or more names of pin groups that provide this function.
+ * @num_groups: number of groups included in @groups.
+ */
+struct samsung_pmx_func {
+ const char *name;
+ const char **groups;
+ u8 num_groups;
+ u32 val;
+};
+
+/* list of all exported SoC specific data */
+extern const struct samsung_pinctrl_of_match_data exynos3250_of_data;
+extern const struct samsung_pinctrl_of_match_data exynos4210_of_data;
+extern const struct samsung_pinctrl_of_match_data exynos4x12_of_data;
+extern const struct samsung_pinctrl_of_match_data exynos5250_of_data;
+extern const struct samsung_pinctrl_of_match_data exynos5260_of_data;
+extern const struct samsung_pinctrl_of_match_data exynos5410_of_data;
+extern const struct samsung_pinctrl_of_match_data exynos5420_of_data;
+extern const struct samsung_pinctrl_of_match_data exynos5433_of_data;
+extern const struct samsung_pinctrl_of_match_data exynos7_of_data;
+extern const struct samsung_pinctrl_of_match_data s3c64xx_of_data;
+extern const struct samsung_pinctrl_of_match_data s3c2412_of_data;
+extern const struct samsung_pinctrl_of_match_data s3c2416_of_data;
+extern const struct samsung_pinctrl_of_match_data s3c2440_of_data;
+extern const struct samsung_pinctrl_of_match_data s3c2450_of_data;
+extern const struct samsung_pinctrl_of_match_data s5pv210_of_data;
+
+#endif /* __PINCTRL_SAMSUNG_H */