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Input: synaptics-rmi4 - fix enum_fmt 

Do not enumerate all formats, some of which the device may not even
support. Instead, only report the one fixed format of the currently
selected input that will survive try_fmt/s_fmt.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Philipp Zabel 2019-04-26 17:31:43 -07:00 committed by Dmitry Torokhov
parent 9f6da5d42d
commit 9a95220690
1 changed files with 5 additions and 15 deletions
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20
drivers/input/rmi4/rmi_f54.c
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@ -456,25 +456,15 @@ static int rmi_f54_vidioc_fmt(struct file *file, void *priv,
static int rmi_f54_vidioc_enum_fmt(struct file *file, void *priv,
struct v4l2_fmtdesc *fmt)
{
struct f54_data *f54 = video_drvdata(file);
if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
switch (fmt->index) {
case 0:
fmt->pixelformat = V4L2_TCH_FMT_DELTA_TD16;
break;
case 1:
fmt->pixelformat = V4L2_TCH_FMT_DELTA_TD08;
break;
case 2:
fmt->pixelformat = V4L2_TCH_FMT_TU16;
break;
default:
if (fmt->index)
return -EINVAL;
}
fmt->pixelformat = f54->format.pixelformat;
return 0;
}