Hi Akinobu,
Thanks for the patch, could you describe the test you made to reproduce
the issue that I can test on my side ?
I'm using usually yavta or Gstreamer, but I don't know how to trig the
power on/off independently of streamon/off.
Best regards,
Hugues.
On 03/11/2018 04:34 PM, Akinobu Mita wrote:
> The output pixel format changed by set_fmt() pad operation is not
> correctly applied. It is intended to be restored by calling
> ov5640_set_framefmt() when the video stream is started.
>
> However, when the device is powered on by s_power subdev operation before
> the video stream is started, the current output mode setting is restored
> by ov5640_restore_mode() that also clears pending_mode_change flag in
> ov5640_set_mode(). So ov5640_set_framefmt() isn't called as intended and
> the output pixel format is not restored.
>
> This change adds the missing output pixel format setting in the
> ov5640_restore_mode() that is called when the device is powered on.
>
> Cc: Steve Longerbeam <slongerbeam@xxxxxxxxx>
> Cc: Hugues Fruchet <hugues.fruchet@xxxxxx>
> Cc: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
> Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx>
> Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
> ---
> drivers/media/i2c/ov5640.c | 9 ++++++++-
> 1 file changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c
> index e2dd352..4eecc91 100644
> --- a/drivers/media/i2c/ov5640.c
> +++ b/drivers/media/i2c/ov5640.c
> @@ -1633,6 +1633,9 @@ static int ov5640_set_mode(struct ov5640_dev *sensor,
> return 0;
> }
>
> +static int ov5640_set_framefmt(struct ov5640_dev *sensor,
> + struct v4l2_mbus_framefmt *format);
> +
> /* restore the last set video mode after chip power-on */
> static int ov5640_restore_mode(struct ov5640_dev *sensor)
> {
> @@ -1644,7 +1647,11 @@ static int ov5640_restore_mode(struct ov5640_dev *sensor)
> return ret;
>
> /* now restore the last capture mode */
> - return ov5640_set_mode(sensor, &ov5640_mode_init_data);
> + ret = ov5640_set_mode(sensor, &ov5640_mode_init_data);
> + if (ret < 0)
> + return ret;
> +
> + return ov5640_set_framefmt(sensor, &sensor->fmt);
> }
>
> static void ov5640_power(struct ov5640_dev *sensor, bool enable)
>
