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[RESEND,14/25] media: i2c: hi556: simplify getting state container

Message ID 20201029164239.84240-14-krzk@kernel.org
State Accepted
Commit 34b3c34d104c70fc9bad1e34be7bfff33661ffdf
Headers show
Series [RESEND,01/25] media: i2c: imx214: simplify getting state container | expand

Commit Message

Krzysztof Kozlowski Oct. 29, 2020, 4:42 p.m. UTC 
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>
---
 drivers/media/i2c/hi556.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
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Patch

diff --git a/drivers/media/i2c/hi556.c b/drivers/media/i2c/hi556.c
index c66cd1446c0f..c74736845d7a 100644
--- a/drivers/media/i2c/hi556.c
+++ b/drivers/media/i2c/hi556.c
@@ -839,8 +839,7 @@  static int hi556_set_stream(struct v4l2_subdev *sd, int enable)
 
 static int __maybe_unused hi556_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 hi556 *hi556 = to_hi556(sd);
 
 	mutex_lock(&hi556->mutex);
@@ -854,8 +853,7 @@  static int __maybe_unused hi556_suspend(struct device *dev)
 
 static int __maybe_unused hi556_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 hi556 *hi556 = to_hi556(sd);
 	int ret;