[v3,11/15] media: blackfin: bfin_capture: return -ENODATA for *dv_timings calls
Commit Message
From: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
this patch adds support to return -ENODATA for *dv_timings calls
if the current output does not support it.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
---
drivers/media/platform/blackfin/bfin_capture.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
@@ -483,6 +483,11 @@ static int bcap_enum_dv_timings(struct file *file, void *priv,
struct v4l2_enum_dv_timings *timings)
{
struct bcap_device *bcap_dev = video_drvdata(file);
+ struct v4l2_input input;
+
+ input = bcap_dev->cfg->inputs[bcap_dev->cur_input];
+ if (!(input.capabilities & V4L2_IN_CAP_DV_TIMINGS))
+ return -ENODATA;
timings->pad = 0;
@@ -494,6 +499,11 @@ static int bcap_query_dv_timings(struct file *file, void *priv,
struct v4l2_dv_timings *timings)
{
struct bcap_device *bcap_dev = video_drvdata(file);
+ struct v4l2_input input;
+
+ input = bcap_dev->cfg->inputs[bcap_dev->cur_input];
+ if (!(input.capabilities & V4L2_IN_CAP_DV_TIMINGS))
+ return -ENODATA;
return v4l2_subdev_call(bcap_dev->sd, video,
query_dv_timings, timings);
@@ -503,6 +513,11 @@ static int bcap_g_dv_timings(struct file *file, void *priv,
struct v4l2_dv_timings *timings)
{
struct bcap_device *bcap_dev = video_drvdata(file);
+ struct v4l2_input input;
+
+ input = bcap_dev->cfg->inputs[bcap_dev->cur_input];
+ if (!(input.capabilities & V4L2_IN_CAP_DV_TIMINGS))
+ return -ENODATA;
*timings = bcap_dev->dv_timings;
return 0;
@@ -512,7 +527,13 @@ static int bcap_s_dv_timings(struct file *file, void *priv,
struct v4l2_dv_timings *timings)
{
struct bcap_device *bcap_dev = video_drvdata(file);
+ struct v4l2_input input;
int ret;
+
+ input = bcap_dev->cfg->inputs[bcap_dev->cur_input];
+ if (!(input.capabilities & V4L2_IN_CAP_DV_TIMINGS))
+ return -ENODATA;
+
if (vb2_is_busy(&bcap_dev->buffer_queue))
return -EBUSY;