Commit 654c433b authored by Sowjanya Komatineni's avatar Sowjanya Komatineni Committed by Mauro Carvalho Chehab

media: tegra-video: Separate CSI stream enable and disable implementations

This patch separates implementation of CSI stream enable and disable
into separate functions for readability.
Reviewed-by: default avatarDmitry Osipenko <digetx@gmail.com>
Signed-off-by: default avatarSowjanya Komatineni <skomatineni@nvidia.com>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
parent b73be499
......@@ -232,34 +232,53 @@ static int tegra_csi_g_frame_interval(struct v4l2_subdev *subdev,
return 0;
}
static int tegra_csi_s_stream(struct v4l2_subdev *subdev, int enable)
static int tegra_csi_enable_stream(struct v4l2_subdev *subdev)
{
struct tegra_vi_channel *chan = v4l2_get_subdev_hostdata(subdev);
struct tegra_csi_channel *csi_chan = to_csi_chan(subdev);
struct tegra_csi *csi = csi_chan->csi;
int ret = 0;
int ret;
ret = pm_runtime_get_sync(csi->dev);
if (ret < 0) {
dev_err(csi->dev, "failed to get runtime PM: %d\n", ret);
pm_runtime_put_noidle(csi->dev);
return ret;
}
csi_chan->pg_mode = chan->pg_mode;
if (enable) {
ret = pm_runtime_get_sync(csi->dev);
if (ret < 0) {
dev_err(csi->dev,
"failed to get runtime PM: %d\n", ret);
pm_runtime_put_noidle(csi->dev);
return ret;
}
ret = csi->ops->csi_start_streaming(csi_chan);
if (ret < 0)
goto rpm_put;
ret = csi->ops->csi_start_streaming(csi_chan);
if (ret < 0)
goto rpm_put;
return 0;
return 0;
}
rpm_put:
pm_runtime_put(csi->dev);
return ret;
}
static int tegra_csi_disable_stream(struct v4l2_subdev *subdev)
{
struct tegra_csi_channel *csi_chan = to_csi_chan(subdev);
struct tegra_csi *csi = csi_chan->csi;
csi->ops->csi_stop_streaming(csi_chan);
rpm_put:
pm_runtime_put(csi->dev);
return 0;
}
static int tegra_csi_s_stream(struct v4l2_subdev *subdev, int enable)
{
int ret;
if (enable)
ret = tegra_csi_enable_stream(subdev);
else
ret = tegra_csi_disable_stream(subdev);
return ret;
}
......
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