[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/os/linux/linux-3.4.x/drivers/mfd/wm8994-irq.c b/ap/os/linux/linux-3.4.x/drivers/mfd/wm8994-irq.c
new file mode 100644
index 0000000..46b20c4
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/mfd/wm8994-irq.c
@@ -0,0 +1,174 @@
+/*
+ * wm8994-irq.c -- Interrupt controller support for Wolfson WM8994
+ *
+ * Copyright 2010 Wolfson Microelectronics PLC.
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.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/kernel.h>
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/irq.h>
+#include <linux/mfd/core.h>
+#include <linux/interrupt.h>
+#include <linux/regmap.h>
+
+#include <linux/mfd/wm8994/core.h>
+#include <linux/mfd/wm8994/registers.h>
+
+#include <linux/delay.h>
+
+static struct regmap_irq wm8994_irqs[] = {
+ [WM8994_IRQ_TEMP_SHUT] = {
+ .reg_offset = 1,
+ .mask = WM8994_TEMP_SHUT_EINT,
+ },
+ [WM8994_IRQ_MIC1_DET] = {
+ .reg_offset = 1,
+ .mask = WM8994_MIC1_DET_EINT,
+ },
+ [WM8994_IRQ_MIC1_SHRT] = {
+ .reg_offset = 1,
+ .mask = WM8994_MIC1_SHRT_EINT,
+ },
+ [WM8994_IRQ_MIC2_DET] = {
+ .reg_offset = 1,
+ .mask = WM8994_MIC2_DET_EINT,
+ },
+ [WM8994_IRQ_MIC2_SHRT] = {
+ .reg_offset = 1,
+ .mask = WM8994_MIC2_SHRT_EINT,
+ },
+ [WM8994_IRQ_FLL1_LOCK] = {
+ .reg_offset = 1,
+ .mask = WM8994_FLL1_LOCK_EINT,
+ },
+ [WM8994_IRQ_FLL2_LOCK] = {
+ .reg_offset = 1,
+ .mask = WM8994_FLL2_LOCK_EINT,
+ },
+ [WM8994_IRQ_SRC1_LOCK] = {
+ .reg_offset = 1,
+ .mask = WM8994_SRC1_LOCK_EINT,
+ },
+ [WM8994_IRQ_SRC2_LOCK] = {
+ .reg_offset = 1,
+ .mask = WM8994_SRC2_LOCK_EINT,
+ },
+ [WM8994_IRQ_AIF1DRC1_SIG_DET] = {
+ .reg_offset = 1,
+ .mask = WM8994_AIF1DRC1_SIG_DET,
+ },
+ [WM8994_IRQ_AIF1DRC2_SIG_DET] = {
+ .reg_offset = 1,
+ .mask = WM8994_AIF1DRC2_SIG_DET_EINT,
+ },
+ [WM8994_IRQ_AIF2DRC_SIG_DET] = {
+ .reg_offset = 1,
+ .mask = WM8994_AIF2DRC_SIG_DET_EINT,
+ },
+ [WM8994_IRQ_FIFOS_ERR] = {
+ .reg_offset = 1,
+ .mask = WM8994_FIFOS_ERR_EINT,
+ },
+ [WM8994_IRQ_WSEQ_DONE] = {
+ .reg_offset = 1,
+ .mask = WM8994_WSEQ_DONE_EINT,
+ },
+ [WM8994_IRQ_DCS_DONE] = {
+ .reg_offset = 1,
+ .mask = WM8994_DCS_DONE_EINT,
+ },
+ [WM8994_IRQ_TEMP_WARN] = {
+ .reg_offset = 1,
+ .mask = WM8994_TEMP_WARN_EINT,
+ },
+ [WM8994_IRQ_GPIO(1)] = {
+ .mask = WM8994_GP1_EINT,
+ },
+ [WM8994_IRQ_GPIO(2)] = {
+ .mask = WM8994_GP2_EINT,
+ },
+ [WM8994_IRQ_GPIO(3)] = {
+ .mask = WM8994_GP3_EINT,
+ },
+ [WM8994_IRQ_GPIO(4)] = {
+ .mask = WM8994_GP4_EINT,
+ },
+ [WM8994_IRQ_GPIO(5)] = {
+ .mask = WM8994_GP5_EINT,
+ },
+ [WM8994_IRQ_GPIO(6)] = {
+ .mask = WM8994_GP6_EINT,
+ },
+ [WM8994_IRQ_GPIO(7)] = {
+ .mask = WM8994_GP7_EINT,
+ },
+ [WM8994_IRQ_GPIO(8)] = {
+ .mask = WM8994_GP8_EINT,
+ },
+ [WM8994_IRQ_GPIO(9)] = {
+ .mask = WM8994_GP8_EINT,
+ },
+ [WM8994_IRQ_GPIO(10)] = {
+ .mask = WM8994_GP10_EINT,
+ },
+ [WM8994_IRQ_GPIO(11)] = {
+ .mask = WM8994_GP11_EINT,
+ },
+};
+
+static struct regmap_irq_chip wm8994_irq_chip = {
+ .name = "wm8994",
+ .irqs = wm8994_irqs,
+ .num_irqs = ARRAY_SIZE(wm8994_irqs),
+
+ .num_regs = 2,
+ .status_base = WM8994_INTERRUPT_STATUS_1,
+ .mask_base = WM8994_INTERRUPT_STATUS_1_MASK,
+ .ack_base = WM8994_INTERRUPT_STATUS_1,
+};
+
+int wm8994_irq_init(struct wm8994 *wm8994)
+{
+ int ret;
+
+ if (!wm8994->irq) {
+ dev_warn(wm8994->dev,
+ "No interrupt specified, no interrupts\n");
+ wm8994->irq_base = 0;
+ return 0;
+ }
+
+ if (!wm8994->irq_base) {
+ dev_err(wm8994->dev,
+ "No interrupt base specified, no interrupts\n");
+ return 0;
+ }
+
+ ret = regmap_add_irq_chip(wm8994->regmap, wm8994->irq,
+ IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
+ wm8994->irq_base, &wm8994_irq_chip,
+ &wm8994->irq_data);
+ if (ret != 0) {
+ dev_err(wm8994->dev, "Failed to register IRQ chip: %d\n", ret);
+ return ret;
+ }
+
+ /* Enable top level interrupt if it was masked */
+ wm8994_reg_write(wm8994, WM8994_INTERRUPT_CONTROL, 0);
+
+ return 0;
+}
+
+void wm8994_irq_exit(struct wm8994 *wm8994)
+{
+ regmap_del_irq_chip(wm8994->irq, wm8994->irq_data);
+}