There is no need to stop streaming at system suspend time, or restart it
when the system is resumed, as the host-side driver is responsible for
stopping and restarting the pipeline in a controlled way by calling the
.s_stream() operation. Drop the system suspend and resume handlers, and
simplify the .s_stream() handler as a result.
Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
---
drivers/media/i2c/imx219.c | 56 ++------------------------------------
1 file changed, 2 insertions(+), 54 deletions(-)
diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c
index 8c928202a23b..a12ebf288dd2 100644
--- a/drivers/media/i2c/imx219.c
+++ b/drivers/media/i2c/imx219.c
@@ -358,9 +358,6 @@ struct imx219 {
struct v4l2_ctrl *vblank;
struct v4l2_ctrl *hblank;
- /* Streaming on/off */
- bool streaming;
-
/* Two or Four lanes */
u8 lanes;
};
@@ -763,24 +760,11 @@ static int imx219_set_stream(struct v4l2_subdev *sd, int enable)
state = v4l2_subdev_lock_and_get_active_state(sd);
- if (imx219->streaming == enable)
- goto unlock;
-
- if (enable) {
- /*
- * Apply default & customized values
- * and then start streaming.
- */
+ if (enable)
ret = imx219_start_streaming(imx219, state);
- if (ret)
- goto unlock;
- } else {
+ else
imx219_stop_streaming(imx219);
- }
- imx219->streaming = enable;
-
-unlock:
v4l2_subdev_unlock_state(state);
return ret;
}
@@ -1014,41 +998,6 @@ static int imx219_power_off(struct device *dev)
return 0;
}
-static int __maybe_unused imx219_suspend(struct device *dev)
-{
- struct v4l2_subdev *sd = dev_get_drvdata(dev);
- struct imx219 *imx219 = to_imx219(sd);
-
- if (imx219->streaming)
- imx219_stop_streaming(imx219);
-
- return 0;
-}
-
-static int __maybe_unused imx219_resume(struct device *dev)
-{
- struct v4l2_subdev *sd = dev_get_drvdata(dev);
- struct imx219 *imx219 = to_imx219(sd);
- struct v4l2_subdev_state *state;
- int ret;
-
- if (imx219->streaming) {
- state = v4l2_subdev_lock_and_get_active_state(sd);
- ret = imx219_start_streaming(imx219, state);
- v4l2_subdev_unlock_state(state);
- if (ret)
- goto error;
- }
-
- return 0;
-
-error:
- imx219_stop_streaming(imx219);
- imx219->streaming = false;
-
- return ret;
-}
-
/* -----------------------------------------------------------------------------
* Probe & remove
*/
@@ -1294,7 +1243,6 @@ static const struct of_device_id imx219_dt_ids[] = {
MODULE_DEVICE_TABLE(of, imx219_dt_ids);
static const struct dev_pm_ops imx219_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(imx219_suspend, imx219_resume)
SET_RUNTIME_PM_OPS(imx219_power_off, imx219_power_on, NULL)
};
--
Regards,
Laurent Pinchart
