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| author | Sakari Ailus <sakari.ailus@linux.intel.com> | 2025-06-04 00:32:36 +0300 |
|---|---|---|
| committer | Hans Verkuil <hverkuil@xs4all.nl> | 2025-07-10 12:32:23 +0300 |
| commit | f98691668ecd644ce63d20d8dd7baf892a6b873d (patch) | |
| tree | 9f02b4cb7760d1b760857178ef82700d6e860cad /drivers/media/v4l2-core/v4l2-subdev.c | |
| parent | 7a8212f3bcfab753602599da644fb5bdeaf8ff2d (diff) | |
| download | linux-f98691668ecd644ce63d20d8dd7baf892a6b873d.tar.xz | |
media: v4l2-subdev: Print early in v4l2_subdev_{enable,disable}_streams()
Print debug messages early in v4l2_subdev_enable_streams() and
v4l2_subdev_disable_streams(), before sanity checks take place. This can
help figuring out why something goes wrong, in driver development or
otherwise.
Also print the name of the sub-device where streaming is to be enabled or
disabled.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Diffstat (limited to 'drivers/media/v4l2-core/v4l2-subdev.c')
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-subdev.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c index c69d1aff701f..7b1a67a52efa 100644 --- a/drivers/media/v4l2-core/v4l2-subdev.c +++ b/drivers/media/v4l2-core/v4l2-subdev.c @@ -2285,6 +2285,9 @@ int v4l2_subdev_enable_streams(struct v4l2_subdev *sd, u32 pad, bool use_s_stream; int ret; + dev_dbg(dev, "enable streams \"%s\":%u/%#llx\n", sd->entity.name, pad, + streams_mask); + /* A few basic sanity checks first. */ if (pad >= sd->entity.num_pads) return -EINVAL; @@ -2332,8 +2335,6 @@ int v4l2_subdev_enable_streams(struct v4l2_subdev *sd, u32 pad, goto done; } - dev_dbg(dev, "enable streams %u:%#llx\n", pad, streams_mask); - already_streaming = v4l2_subdev_is_streaming(sd); if (!use_s_stream) { @@ -2385,6 +2386,9 @@ int v4l2_subdev_disable_streams(struct v4l2_subdev *sd, u32 pad, bool use_s_stream; int ret; + dev_dbg(dev, "disable streams \"%s\":%u/%#llx\n", sd->entity.name, pad, + streams_mask); + /* A few basic sanity checks first. */ if (pad >= sd->entity.num_pads) return -EINVAL; @@ -2432,8 +2436,6 @@ int v4l2_subdev_disable_streams(struct v4l2_subdev *sd, u32 pad, goto done; } - dev_dbg(dev, "disable streams %u:%#llx\n", pad, streams_mask); - if (!use_s_stream) { /* Call the .disable_streams() operation. */ ret = v4l2_subdev_call(sd, pad, disable_streams, state, pad, |