ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/drivers/misc/lis3lv02d/lis3lv02d_spi.c b/marvell/linux/drivers/misc/lis3lv02d/lis3lv02d_spi.c
new file mode 100644
index 0000000..f664ed1
--- /dev/null
+++ b/marvell/linux/drivers/misc/lis3lv02d/lis3lv02d_spi.c
@@ -0,0 +1,150 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * lis3lv02d_spi - SPI glue layer for lis3lv02d
+ *
+ * Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/err.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/workqueue.h>
+#include <linux/spi/spi.h>
+#include <linux/pm.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/of_device.h>
+
+#include "lis3lv02d.h"
+
+#define DRV_NAME "lis3lv02d_spi"
+#define LIS3_SPI_READ 0x80
+
+static int lis3_spi_read(struct lis3lv02d *lis3, int reg, u8 *v)
+{
+ struct spi_device *spi = lis3->bus_priv;
+ int ret = spi_w8r8(spi, reg | LIS3_SPI_READ);
+ if (ret < 0)
+ return -EINVAL;
+
+ *v = (u8) ret;
+ return 0;
+}
+
+static int lis3_spi_write(struct lis3lv02d *lis3, int reg, u8 val)
+{
+ u8 tmp[2] = { reg, val };
+ struct spi_device *spi = lis3->bus_priv;
+ return spi_write(spi, tmp, sizeof(tmp));
+}
+
+static int lis3_spi_init(struct lis3lv02d *lis3)
+{
+ u8 reg;
+ int ret;
+
+ /* power up the device */
+ ret = lis3->read(lis3, CTRL_REG1, ®);
+ if (ret < 0)
+ return ret;
+
+ reg |= CTRL1_PD0 | CTRL1_Xen | CTRL1_Yen | CTRL1_Zen;
+ return lis3->write(lis3, CTRL_REG1, reg);
+}
+
+static union axis_conversion lis3lv02d_axis_normal =
+ { .as_array = { 1, 2, 3 } };
+
+#ifdef CONFIG_OF
+static const struct of_device_id lis302dl_spi_dt_ids[] = {
+ { .compatible = "st,lis302dl-spi" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, lis302dl_spi_dt_ids);
+#endif
+
+static int lis302dl_spi_probe(struct spi_device *spi)
+{
+ int ret;
+
+ spi->bits_per_word = 8;
+ spi->mode = SPI_MODE_0;
+ ret = spi_setup(spi);
+ if (ret < 0)
+ return ret;
+
+ lis3_dev.bus_priv = spi;
+ lis3_dev.init = lis3_spi_init;
+ lis3_dev.read = lis3_spi_read;
+ lis3_dev.write = lis3_spi_write;
+ lis3_dev.irq = spi->irq;
+ lis3_dev.ac = lis3lv02d_axis_normal;
+ lis3_dev.pdata = spi->dev.platform_data;
+
+#ifdef CONFIG_OF
+ if (of_match_device(lis302dl_spi_dt_ids, &spi->dev)) {
+ lis3_dev.of_node = spi->dev.of_node;
+ ret = lis3lv02d_init_dt(&lis3_dev);
+ if (ret)
+ return ret;
+ }
+#endif
+ spi_set_drvdata(spi, &lis3_dev);
+
+ return lis3lv02d_init_device(&lis3_dev);
+}
+
+static int lis302dl_spi_remove(struct spi_device *spi)
+{
+ struct lis3lv02d *lis3 = spi_get_drvdata(spi);
+ lis3lv02d_joystick_disable(lis3);
+ lis3lv02d_poweroff(lis3);
+
+ return lis3lv02d_remove_fs(&lis3_dev);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int lis3lv02d_spi_suspend(struct device *dev)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ struct lis3lv02d *lis3 = spi_get_drvdata(spi);
+
+ if (!lis3->pdata || !lis3->pdata->wakeup_flags)
+ lis3lv02d_poweroff(&lis3_dev);
+
+ return 0;
+}
+
+static int lis3lv02d_spi_resume(struct device *dev)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ struct lis3lv02d *lis3 = spi_get_drvdata(spi);
+
+ if (!lis3->pdata || !lis3->pdata->wakeup_flags)
+ lis3lv02d_poweron(lis3);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(lis3lv02d_spi_pm, lis3lv02d_spi_suspend,
+ lis3lv02d_spi_resume);
+
+static struct spi_driver lis302dl_spi_driver = {
+ .driver = {
+ .name = DRV_NAME,
+ .pm = &lis3lv02d_spi_pm,
+ .of_match_table = of_match_ptr(lis302dl_spi_dt_ids),
+ },
+ .probe = lis302dl_spi_probe,
+ .remove = lis302dl_spi_remove,
+};
+
+module_spi_driver(lis302dl_spi_driver);
+
+MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
+MODULE_DESCRIPTION("lis3lv02d SPI glue layer");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("spi:" DRV_NAME);