From 23fa18eaa71266feff7ba8d83022d9e1cc83c65a Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:42:03 +0000
Subject: [PATCH] disable pwm7
---
kernel/drivers/iio/common/st_sensors/st_sensors_i2c.c | 109 +++++++++++++++++++-----------------------------------
1 files changed, 38 insertions(+), 71 deletions(-)
diff --git a/kernel/drivers/iio/common/st_sensors/st_sensors_i2c.c b/kernel/drivers/iio/common/st_sensors/st_sensors_i2c.c
index b81e48e..b9e59ad 100644
--- a/kernel/drivers/iio/common/st_sensors/st_sensors_i2c.c
+++ b/kernel/drivers/iio/common/st_sensors/st_sensors_i2c.c
@@ -1,102 +1,69 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* STMicroelectronics sensors i2c library driver
*
* Copyright 2012-2013 STMicroelectronics Inc.
*
* Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/iio/iio.h>
-#include <linux/of_device.h>
-#include <linux/acpi.h>
+#include <linux/regmap.h>
#include <linux/iio/common/st_sensors_i2c.h>
#define ST_SENSORS_I2C_MULTIREAD 0x80
-static unsigned int st_sensors_i2c_get_irq(struct iio_dev *indio_dev)
-{
- struct st_sensor_data *sdata = iio_priv(indio_dev);
-
- return to_i2c_client(sdata->dev)->irq;
-}
-
-static int st_sensors_i2c_read_byte(struct st_sensor_transfer_buffer *tb,
- struct device *dev, u8 reg_addr, u8 *res_byte)
-{
- int err;
-
- err = i2c_smbus_read_byte_data(to_i2c_client(dev), reg_addr);
- if (err < 0)
- goto st_accel_i2c_read_byte_error;
-
- *res_byte = err & 0xff;
-
-st_accel_i2c_read_byte_error:
- return err < 0 ? err : 0;
-}
-
-static int st_sensors_i2c_read_multiple_byte(
- struct st_sensor_transfer_buffer *tb, struct device *dev,
- u8 reg_addr, int len, u8 *data, bool multiread_bit)
-{
- if (multiread_bit)
- reg_addr |= ST_SENSORS_I2C_MULTIREAD;
-
- return i2c_smbus_read_i2c_block_data_or_emulated(to_i2c_client(dev),
- reg_addr, len, data);
-}
-
-static int st_sensors_i2c_write_byte(struct st_sensor_transfer_buffer *tb,
- struct device *dev, u8 reg_addr, u8 data)
-{
- return i2c_smbus_write_byte_data(to_i2c_client(dev), reg_addr, data);
-}
-
-static const struct st_sensor_transfer_function st_sensors_tf_i2c = {
- .read_byte = st_sensors_i2c_read_byte,
- .write_byte = st_sensors_i2c_write_byte,
- .read_multiple_byte = st_sensors_i2c_read_multiple_byte,
+static const struct regmap_config st_sensors_i2c_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
};
-void st_sensors_i2c_configure(struct iio_dev *indio_dev,
- struct i2c_client *client, struct st_sensor_data *sdata)
+static const struct regmap_config st_sensors_i2c_regmap_multiread_bit_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .read_flag_mask = ST_SENSORS_I2C_MULTIREAD,
+};
+
+/*
+ * st_sensors_i2c_configure() - configure I2C interface
+ * @indio_dev: IIO device reference.
+ * @client: i2c client reference.
+ *
+ * Return: 0 on success, else a negative error code.
+ */
+int st_sensors_i2c_configure(struct iio_dev *indio_dev,
+ struct i2c_client *client)
{
+ struct st_sensor_data *sdata = iio_priv(indio_dev);
+ const struct regmap_config *config;
+
+ if (sdata->sensor_settings->multi_read_bit)
+ config = &st_sensors_i2c_regmap_multiread_bit_config;
+ else
+ config = &st_sensors_i2c_regmap_config;
+
+ sdata->regmap = devm_regmap_init_i2c(client, config);
+ if (IS_ERR(sdata->regmap)) {
+ dev_err(&client->dev, "Failed to register i2c regmap (%ld)\n",
+ PTR_ERR(sdata->regmap));
+ return PTR_ERR(sdata->regmap);
+ }
+
i2c_set_clientdata(client, indio_dev);
- indio_dev->dev.parent = &client->dev;
indio_dev->name = client->name;
sdata->dev = &client->dev;
- sdata->tf = &st_sensors_tf_i2c;
- sdata->get_irq_data_ready = st_sensors_i2c_get_irq;
+ sdata->irq = client->irq;
+
+ return 0;
}
EXPORT_SYMBOL(st_sensors_i2c_configure);
-
-#ifdef CONFIG_ACPI
-int st_sensors_match_acpi_device(struct device *dev)
-{
- const struct acpi_device_id *acpi_id;
- kernel_ulong_t driver_data = 0;
-
- if (ACPI_HANDLE(dev)) {
- acpi_id = acpi_match_device(dev->driver->acpi_match_table, dev);
- if (!acpi_id) {
- dev_err(dev, "No driver data\n");
- return -EINVAL;
- }
- driver_data = acpi_id->driver_data;
- }
- return driver_data;
-}
-EXPORT_SYMBOL(st_sensors_match_acpi_device);
-#endif
MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
MODULE_DESCRIPTION("STMicroelectronics ST-sensors i2c driver");
--
Gitblit v1.6.2