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media: Revert "media: camss: Make use of V4L2_CAP_IO_MC"

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This reverts commit c90f1178dc.

The assumption of "Each entry in formats[] table has unique mbus_code"
is valid for the RDI entities, but not for the PIX ones.

Reverting this patch and creating a new one which handles the PIX entities
correctly results in smaller and more straightforward patch than doing the
changes on top of the current version.

Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.org>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Andrey Konovalov 2020-11-26 16:01:56 +01:00 committed by Mauro Carvalho Chehab
parent 6b94c09f82
commit a3d412d4b9
1 changed files with 13 additions and 54 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

67
drivers/media/platform/qcom/camss/camss-video.c
View File

@ -535,16 +535,17 @@ static int video_querycap(struct file *file, void *fh,
return 0;
}
/*
* Returns the index in the video->formats[] array of the element which
* has the "ndx"th unique value of pixelformat field.
* If not found (no more unique pixelformat's) returns -EINVAL.
*/
static int video_get_unique_pixelformat_by_index(struct camss_video *video,
int ndx)
static int video_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f)
{
struct camss_video *video = video_drvdata(file);
int i, j, k;
if (f->type != video->type)
return -EINVAL;
if (f->index >= video->nformats)
return -EINVAL;
/* find index "i" of "k"th unique pixelformat in formats array */
k = -1;
for (i = 0; i < video->nformats; i++) {
@ -557,53 +558,11 @@ static int video_get_unique_pixelformat_by_index(struct camss_video *video,
if (j == i)
k++;
if (k == ndx)
return i;
if (k == f->index)
break;
}
return -EINVAL;
}
/*
* Returns the index in the video->formats[] array of the element which
* has code equal to mcode.
* If not found returns -EINVAL.
*/
static int video_get_pixelformat_by_mbus_code(struct camss_video *video,
u32 mcode)
{
int i;
for (i = 0; i < video->nformats; i++) {
if (video->formats[i].code == mcode)
return i;
}
return -EINVAL;
}
static int video_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f)
{
struct camss_video *video = video_drvdata(file);
int i;
if (f->type != video->type)
return -EINVAL;
if (f->index >= video->nformats)
return -EINVAL;
if (f->mbus_code) {
/* Each entry in formats[] table has unique mbus_code */
if (f->index > 0)
return -EINVAL;
i = video_get_pixelformat_by_mbus_code(video, f->mbus_code);
} else {
i = video_get_unique_pixelformat_by_index(video, f->index);
}
if (i < 0)
if (k < f->index)
return -EINVAL;
f->pixelformat = video->formats[i].pixelformat;
@ -990,8 +949,8 @@ int msm_video_register(struct camss_video *video, struct v4l2_device *v4l2_dev,
}
vdev->fops = &msm_vid_fops;
vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE_MPLANE | V4L2_CAP_STREAMING
| V4L2_CAP_READWRITE | V4L2_CAP_IO_MC;
vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE_MPLANE | V4L2_CAP_STREAMING |
V4L2_CAP_READWRITE;
vdev->ioctl_ops = &msm_vid_ioctl_ops;
vdev->release = msm_video_release;
vdev->v4l2_dev = v4l2_dev;