iio: st_sensors: Drop redundant parameter from st_sensors_of_name_probe()

Since we have access to the struct device_driver and thus to the ID table,
there is no need to supply special parameters to st_sensors_of_name_probe().

Besides that we have a common API to get driver match data, there is
no need to do matching separately for OF and ACPI.

Taking into consideration above, simplify the ST sensors code.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

2 files changed, 17 insertions, 42 deletions

diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index 4a3064fb6cd9..42a71a50650f 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -12,6 +12,7 @@
 #include <linux/slab.h>
 #include <linux/delay.h>
 #include <linux/iio/iio.h>
+#include <linux/property.h>
 #include <linux/regulator/consumer.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
@@ -340,42 +341,37 @@ static struct st_sensors_platform_data *st_sensors_of_probe(struct device *dev,
 
 	return pdata;
 }
+#else
+static struct st_sensors_platform_data *st_sensors_of_probe(struct device *dev,
+		struct st_sensors_platform_data *defdata)
+{
+	return NULL;
+}
+#endif
 
 /**
- * st_sensors_of_name_probe() - device tree probe for ST sensor name
+ * st_sensors_dev_name_probe() - device probe for ST sensor name
  * @dev: driver model representation of the device.
- * @match: the OF match table for the device, containing compatible strings
- *	but also a .data field with the corresponding internal kernel name
- *	used by this sensor.
  * @name: device name buffer reference.
  * @len: device name buffer length.
  *
- * In effect this function matches a compatible string to an internal kernel
+ * In effect this function matches an ID to an internal kernel
  * name for a certain sensor device, so that the rest of the autodetection can
  * rely on that name from this point on. I2C/SPI devices will be renamed
  * to match the internal kernel convention.
  */
-void st_sensors_of_name_probe(struct device *dev,
-			      const struct of_device_id *match,
-			      char *name, int len)
+void st_sensors_dev_name_probe(struct device *dev, char *name, int len)
 {
-	const struct of_device_id *of_id;
+	const void *match;
 
-	of_id = of_match_device(match, dev);
-	if (!of_id || !of_id->data)
+	match = device_get_match_data(dev);
+	if (!match)
 		return;
 
-	/* The name from the OF match takes precedence if present */
-	strlcpy(name, of_id->data, len);
+	/* The name from the match takes precedence if present */
+	strlcpy(name, match, len);
 }
-EXPORT_SYMBOL(st_sensors_of_name_probe);
-#else
-static struct st_sensors_platform_data *st_sensors_of_probe(struct device *dev,
-		struct st_sensors_platform_data *defdata)
-{
-	return NULL;
-}
-#endif
+EXPORT_SYMBOL(st_sensors_dev_name_probe);
 
 int st_sensors_init_sensor(struct iio_dev *indio_dev,
 					struct st_sensors_platform_data *pdata)
diff --git a/drivers/iio/common/st_sensors/st_sensors_i2c.c b/drivers/iio/common/st_sensors/st_sensors_i2c.c
index aa89d54a7c59..286830fb5d35 100644
--- a/drivers/iio/common/st_sensors/st_sensors_i2c.c
+++ b/drivers/iio/common/st_sensors/st_sensors_i2c.c
@@ -11,8 +11,6 @@
 #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>
@@ -68,25 +66,6 @@ int st_sensors_i2c_configure(struct iio_dev *indio_dev,
 }
 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");
 MODULE_LICENSE("GPL v2");