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[13/57] media: i2c: mt9m001: Drop check for reentrant .s_stream()

Message ID 20230914181704.4811-14-laurent.pinchart@ideasonboard.com
State Accepted
Commit 8beaae2c2bf05e312f4b2434e334e8a44e499032
Headers show
Series [01/57] media: v4l2-subdev: Document .s_stream() operation requirements | expand

Commit Message

Laurent Pinchart Sept. 14, 2023, 6:16 p.m. UTC 
The subdev .s_stream() operation shall not be called to start streaming
on an already started subdev, or stop streaming on a stopped subdev.
Remove the check that guards against that condition.

The streaming field of the driver's private structure is now unused,
drop it as well.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 drivers/media/i2c/mt9m001.c | 6 ------
 1 file changed, 6 deletions(-)
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Patch

diff --git a/drivers/media/i2c/mt9m001.c b/drivers/media/i2c/mt9m001.c
index ce9568e8391c..79192cf79d28 100644
--- a/drivers/media/i2c/mt9m001.c
+++ b/drivers/media/i2c/mt9m001.c
@@ -93,7 +93,6 @@  struct mt9m001 {
 		struct v4l2_ctrl *autoexposure;
 		struct v4l2_ctrl *exposure;
 	};
-	bool streaming;
 	struct mutex mutex;
 	struct v4l2_rect rect;	/* Sensor window */
 	struct clk *clk;
@@ -213,9 +212,6 @@  static int mt9m001_s_stream(struct v4l2_subdev *sd, int enable)
 
 	mutex_lock(&mt9m001->mutex);
 
-	if (mt9m001->streaming == enable)
-		goto done;
-
 	if (enable) {
 		ret = pm_runtime_resume_and_get(&client->dev);
 		if (ret < 0)
@@ -239,8 +235,6 @@  static int mt9m001_s_stream(struct v4l2_subdev *sd, int enable)
 		pm_runtime_put(&client->dev);
 	}
 
-	mt9m001->streaming = enable;
-done:
 	mutex_unlock(&mt9m001->mutex);
 
 	return 0;