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media: imx: imx7_mipi_csis: Make source .s_power() optional

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The .s_power() subdev operation is optional, don't error out when the
source doesn't implement it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Laurent Pinchart
2021-02-15 05:27:28 +01:00
committed by Mauro Carvalho Chehab
parent dd4191054b
commit 421ba86abf
1 changed files with 3 additions and 1 deletions
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4
drivers/staging/media/imx/imx7-mipi-csis.c
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@@ -627,7 +627,7 @@ static int mipi_csis_s_stream(struct v4l2_subdev *mipi_sd, int enable)
return ret;
}
ret = v4l2_subdev_call(state->src_sd, core, s_power, 1);
if (ret < 0)
if (ret < 0 && ret != -ENOIOCTLCMD)
return ret;
}
@@ -649,6 +649,8 @@ static int mipi_csis_s_stream(struct v4l2_subdev *mipi_sd, int enable)
} else {
v4l2_subdev_call(state->src_sd, video, s_stream, 0);
ret = v4l2_subdev_call(state->src_sd, core, s_power, 0);
if (ret == -ENOIOCTLCMD)
ret = 0;
mipi_csis_stop_stream(state);
state->flags &= ~ST_STREAMING;
if (state->debug)