[RESEND PATCH 08/25] media: i2c: ad5820: simplify getting state container

From: Krzysztof Kozlowski
Date: Thu Oct 29 2020 - 12:43:26 EST


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@xxxxxxxxxx>
---
drivers/media/i2c/ad5820.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/media/i2c/ad5820.c b/drivers/media/i2c/ad5820.c
index 19c74db0649f..2958a4694461 100644
--- a/drivers/media/i2c/ad5820.c
+++ b/drivers/media/i2c/ad5820.c
@@ -270,8 +270,7 @@ static const struct v4l2_subdev_internal_ops ad5820_internal_ops = {
*/
static int __maybe_unused ad5820_suspend(struct device *dev)
{
- struct i2c_client *client = container_of(dev, struct i2c_client, dev);
- struct v4l2_subdev *subdev = i2c_get_clientdata(client);
+ struct v4l2_subdev *subdev = dev_get_drvdata(dev);
struct ad5820_device *coil = to_ad5820_device(subdev);

if (!coil->power_count)
@@ -282,8 +281,7 @@ static int __maybe_unused ad5820_suspend(struct device *dev)

static int __maybe_unused ad5820_resume(struct device *dev)
{
- struct i2c_client *client = container_of(dev, struct i2c_client, dev);
- struct v4l2_subdev *subdev = i2c_get_clientdata(client);
+ struct v4l2_subdev *subdev = dev_get_drvdata(dev);
struct ad5820_device *coil = to_ad5820_device(subdev);

if (!coil->power_count)
--
2.25.1