media: i2c: adv7180: simplify getting state container

The pointer to 'struct v4l2_subdev' is stored in drvdata via
v4l2_i2c_subdev_init() so there is no point of a dance like:

    struct i2c_client *client = to_i2c_client(struct device *dev)
    struct v4l2_subdev *sd = i2c_get_clientdata(client);

This allows to remove local variable 'client' and few pointer
dereferences.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

diff --git a/drivers/media/i2c/adv7180.c b/drivers/media/i2c/adv7180.c
index 4498d14..44bb6fe 100644 (file)
--- a/drivers/media/i2c/adv7180.c
+++ b/drivers/media/i2c/adv7180.c
@@ -1454,8 +1454,7 @@ MODULE_DEVICE_TABLE(i2c, adv7180_id);
 #ifdef CONFIG_PM_SLEEP
 static int adv7180_suspend(struct device *dev)
 {
-       struct i2c_client *client = to_i2c_client(dev);
-       struct v4l2_subdev *sd = i2c_get_clientdata(client);
+       struct v4l2_subdev *sd = dev_get_drvdata(dev);
        struct adv7180_state *state = to_state(sd);
 
        return adv7180_set_power(state, false);
@@ -1463,8 +1462,7 @@ static int adv7180_suspend(struct device *dev)
 
 static int adv7180_resume(struct device *dev)
 {
-       struct i2c_client *client = to_i2c_client(dev);
-       struct v4l2_subdev *sd = i2c_get_clientdata(client);
+       struct v4l2_subdev *sd = dev_get_drvdata(dev);
        struct adv7180_state *state = to_state(sd);
        int ret;