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2024-05-10 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb

 kernel/drivers/iio/gyro/st_gyro_i2c.c
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@@ -1,11 +1,10 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * STMicroelectronics gyroscopes driver
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  *
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  * Copyright 2012-2013 STMicroelectronics Inc.
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  *
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  * Denis Ciocca <denis.ciocca@st.com>
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- *
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- * Licensed under the GPL-2.
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  */
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 #include <linux/kernel.h>
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@@ -18,7 +17,6 @@
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 #include <linux/iio/common/st_sensors_i2c.h>
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 #include "st_gyro.h"
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-#ifdef CONFIG_OF
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 static const struct of_device_id st_gyro_of_match[] = {
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 	{
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 		.compatible = "st,l3g4200d-gyro",
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@@ -59,37 +57,58 @@
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 	{},
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 };
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 MODULE_DEVICE_TABLE(of, st_gyro_of_match);
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-#else
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-#define st_gyro_of_match NULL
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-#endif
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 static int st_gyro_i2c_probe(struct i2c_client *client,
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-						const struct i2c_device_id *id)
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+			     const struct i2c_device_id *id)
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 {
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-	struct iio_dev *indio_dev;
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+	const struct st_sensor_settings *settings;
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 	struct st_sensor_data *gdata;
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+	struct iio_dev *indio_dev;
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 	int err;
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+
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+	st_sensors_dev_name_probe(&client->dev, client->name, sizeof(client->name));
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+
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+	settings = st_gyro_get_settings(client->name);
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+	if (!settings) {
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+		dev_err(&client->dev, "device name %s not recognized.\n",
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+			client->name);
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+		return -ENODEV;
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+	}
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 	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*gdata));
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 	if (!indio_dev)
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 		return -ENOMEM;
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 	gdata = iio_priv(indio_dev);
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-	st_sensors_of_name_probe(&client->dev, st_gyro_of_match,
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-				 client->name, sizeof(client->name));
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+	gdata->sensor_settings = (struct st_sensor_settings *)settings;
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-	st_sensors_i2c_configure(indio_dev, client, gdata);
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-
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-	err = st_gyro_common_probe(indio_dev);
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+	err = st_sensors_i2c_configure(indio_dev, client);
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 	if (err < 0)
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 		return err;
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+	err = st_sensors_power_enable(indio_dev);
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+	if (err)
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+		return err;
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+
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+	err = st_gyro_common_probe(indio_dev);
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+	if (err < 0)
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+		goto st_gyro_power_off;
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+
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 	return 0;
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+
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+st_gyro_power_off:
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+	st_sensors_power_disable(indio_dev);
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+
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+	return err;
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 }
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 static int st_gyro_i2c_remove(struct i2c_client *client)
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 {
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-	st_gyro_common_remove(i2c_get_clientdata(client));
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+	struct iio_dev *indio_dev = i2c_get_clientdata(client);
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+
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+	st_gyro_common_remove(indio_dev);
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+
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+	st_sensors_power_disable(indio_dev);
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 	return 0;
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 }
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@@ -111,7 +130,7 @@
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 static struct i2c_driver st_gyro_driver = {
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 	.driver = {
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 		.name = "st-gyro-i2c",
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-		.of_match_table = of_match_ptr(st_gyro_of_match),
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+		.of_match_table = st_gyro_of_match,
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 	},
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 	.probe = st_gyro_i2c_probe,
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 	.remove = st_gyro_i2c_remove,