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media: v4l2-core: fix touch support in v4l_g_fmt

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[ Upstream commit 545b618cfb5cadacd00c25066b9a36540e5ca9e9 ]

v4l_s_fmt, for VFL_TYPE_TOUCH, sets unneeded members of
the v4l2_pix_format structure to default values.This was
missing in v4l_g_fmt, which would lead to failures in
v4l2-compliance tests.

Signed-off-by: Vandana BN <bnvandana@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Vandana BN 2019-10-22 04:51:40 -03:00 • committed by Greg Kroah-Hartman
commit 6e7a164f18
1 changed files with 18 additions and 15 deletions
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33
drivers/media/v4l2-core/v4l2-ioctl.c
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@ -1466,10 +1466,26 @@ static int v4l_enum_fmt(const struct v4l2_ioctl_ops *ops,
return ret;
}
static void v4l_pix_format_touch(struct v4l2_pix_format *p)
{
/*
* The v4l2_pix_format structure contains fields that make no sense for
* touch. Set them to default values in this case.
*/
p->field = V4L2_FIELD_NONE;
p->colorspace = V4L2_COLORSPACE_RAW;
p->flags = 0;
p->ycbcr_enc = 0;
p->quantization = 0;
p->xfer_func = 0;
}
static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
struct v4l2_format *p = arg;
struct video_device *vfd = video_devdata(file);
int ret = check_fmt(file, p->type);
if (ret)
@ -1507,6 +1523,8 @@ static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops,
ret = ops->vidioc_g_fmt_vid_cap(file, fh, arg);
/* just in case the driver zeroed it again */
p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
if (vfd->vfl_type == VFL_TYPE_TOUCH)
v4l_pix_format_touch(&p->fmt.pix);
return ret;
case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
return ops->vidioc_g_fmt_vid_cap_mplane(file, fh, arg);
@ -1544,21 +1562,6 @@ static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops,
return -EINVAL;
}
static void v4l_pix_format_touch(struct v4l2_pix_format *p)
{
/*
* The v4l2_pix_format structure contains fields that make no sense for
* touch. Set them to default values in this case.
*/
p->field = V4L2_FIELD_NONE;
p->colorspace = V4L2_COLORSPACE_RAW;
p->flags = 0;
p->ycbcr_enc = 0;
p->quantization = 0;
p->xfer_func = 0;
}
static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{