[PATCH v3 1/2] IIO: st_accel_i2c.c: Simplify access to driver data
From: Nikolaus Voss
Date: Wed Jul 04 2018 - 09:35:31 EST
Use device_get_match_data API to simplify access to driver data.
Let acpi_device_id table entries point to the same driver data as
of_device_id table entries and uniquify access to driver data by using
device_get_match_data API. Remove unused i2c_device_id .driver_data
fields.
Signed-off-by: Nikolaus Voss <nikolaus.voss@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/iio/accel/st_accel_i2c.c | 56 ++++++++++++++------------------
1 file changed, 24 insertions(+), 32 deletions(-)
diff --git a/drivers/iio/accel/st_accel_i2c.c b/drivers/iio/accel/st_accel_i2c.c
index 6bdec8c451e0..c6e08c834f11 100644
--- a/drivers/iio/accel/st_accel_i2c.c
+++ b/drivers/iio/accel/st_accel_i2c.c
@@ -14,8 +14,8 @@
#include <linux/acpi.h>
#include <linux/i2c.h>
#include <linux/iio/iio.h>
+#include <linux/property.h>
-#include <linux/iio/common/st_sensors.h>
#include <linux/iio/common/st_sensors_i2c.h>
#include "st_accel.h"
@@ -107,7 +107,7 @@ MODULE_DEVICE_TABLE(of, st_accel_of_match);
#ifdef CONFIG_ACPI
static const struct acpi_device_id st_accel_acpi_match[] = {
- {"SMO8A90", LNG2DM},
+ {"SMO8A90", (kernel_ulong_t)LNG2DM_ACCEL_DEV_NAME},
{ },
};
MODULE_DEVICE_TABLE(acpi, st_accel_acpi_match);
@@ -116,24 +116,24 @@ MODULE_DEVICE_TABLE(acpi, st_accel_acpi_match);
#endif
static const struct i2c_device_id st_accel_id_table[] = {
- { LSM303DLH_ACCEL_DEV_NAME, LSM303DLH },
- { LSM303DLHC_ACCEL_DEV_NAME, LSM303DLHC },
- { LIS3DH_ACCEL_DEV_NAME, LIS3DH },
- { LSM330D_ACCEL_DEV_NAME, LSM330D },
- { LSM330DL_ACCEL_DEV_NAME, LSM330DL },
- { LSM330DLC_ACCEL_DEV_NAME, LSM330DLC },
- { LIS331DLH_ACCEL_DEV_NAME, LIS331DLH },
- { LSM303DL_ACCEL_DEV_NAME, LSM303DL },
- { LSM303DLM_ACCEL_DEV_NAME, LSM303DLM },
- { LSM330_ACCEL_DEV_NAME, LSM330 },
- { LSM303AGR_ACCEL_DEV_NAME, LSM303AGR },
- { LIS2DH12_ACCEL_DEV_NAME, LIS2DH12 },
- { LIS3L02DQ_ACCEL_DEV_NAME, LIS3L02DQ },
- { LNG2DM_ACCEL_DEV_NAME, LNG2DM },
- { H3LIS331DL_ACCEL_DEV_NAME, H3LIS331DL },
- { LIS331DL_ACCEL_DEV_NAME, LIS331DL },
- { LIS3LV02DL_ACCEL_DEV_NAME, LIS3LV02DL },
- { LIS2DW12_ACCEL_DEV_NAME, LIS2DW12 },
+ { LSM303DLH_ACCEL_DEV_NAME },
+ { LSM303DLHC_ACCEL_DEV_NAME },
+ { LIS3DH_ACCEL_DEV_NAME },
+ { LSM330D_ACCEL_DEV_NAME },
+ { LSM330DL_ACCEL_DEV_NAME },
+ { LSM330DLC_ACCEL_DEV_NAME },
+ { LIS331DLH_ACCEL_DEV_NAME },
+ { LSM303DL_ACCEL_DEV_NAME },
+ { LSM303DLM_ACCEL_DEV_NAME },
+ { LSM330_ACCEL_DEV_NAME },
+ { LSM303AGR_ACCEL_DEV_NAME },
+ { LIS2DH12_ACCEL_DEV_NAME },
+ { LIS3L02DQ_ACCEL_DEV_NAME },
+ { LNG2DM_ACCEL_DEV_NAME },
+ { H3LIS331DL_ACCEL_DEV_NAME },
+ { LIS331DL_ACCEL_DEV_NAME },
+ { LIS3LV02DL_ACCEL_DEV_NAME },
+ { LIS2DW12_ACCEL_DEV_NAME },
{},
};
MODULE_DEVICE_TABLE(i2c, st_accel_id_table);
@@ -143,6 +143,7 @@ static int st_accel_i2c_probe(struct i2c_client *client,
{
struct iio_dev *indio_dev;
struct st_sensor_data *adata;
+ const char *match;
int ret;
indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*adata));
@@ -151,19 +152,10 @@ static int st_accel_i2c_probe(struct i2c_client *client,
adata = iio_priv(indio_dev);
- if (client->dev.of_node) {
- st_sensors_of_name_probe(&client->dev, st_accel_of_match,
- client->name, sizeof(client->name));
- } else if (ACPI_HANDLE(&client->dev)) {
- ret = st_sensors_match_acpi_device(&client->dev);
- if ((ret < 0) || (ret >= ST_ACCEL_MAX))
- return -ENODEV;
-
- strlcpy(client->name, st_accel_id_table[ret].name,
- sizeof(client->name));
- } else if (!id)
- return -ENODEV;
+ match = device_get_match_data(&client->dev);
+ if (match)
+ strlcpy(client->name, match, sizeof(client->name));
st_sensors_i2c_configure(indio_dev, client, adata);
--
2.17.1