openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

[media] ov772x: try_fmt must not default to the current format 

If the requested format isn't supported, return a fixed default format
instead of the current format.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Laurent Pinchart 2012-07-18 10:58:21 -03:00 committed by Mauro Carvalho Chehab
parent 69c80dc901
commit 9f717e9022
1 changed files with 7 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
drivers/media/i2c/soc_camera/ov772x.c
View File

@ -919,38 +919,16 @@ static int ov772x_s_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *mf)
static int ov772x_try_fmt(struct v4l2_subdev *sd,
struct v4l2_mbus_framefmt *mf)
{
struct ov772x_priv *priv = container_of(sd, struct ov772x_priv, subdev);
const struct ov772x_color_format *cfmt;
const struct ov772x_win_size *win;
int i;
/*
* select suitable win
*/
win = ov772x_select_win(mf->width, mf->height);
ov772x_select_params(mf, &cfmt, &win);
mf->width = win->width;
mf->height = win->height;
mf->field = V4L2_FIELD_NONE;
for (i = 0; i < ARRAY_SIZE(ov772x_cfmts); i++)
if (mf->code == ov772x_cfmts[i].code)
break;
if (i == ARRAY_SIZE(ov772x_cfmts)) {
/* Unsupported format requested. Propose either */
if (priv->cfmt) {
/* the current one or */
mf->colorspace = priv->cfmt->colorspace;
mf->code = priv->cfmt->code;
} else {
/* the default one */
mf->colorspace = ov772x_cfmts[0].colorspace;
mf->code = ov772x_cfmts[0].code;
}
} else {
/* Also return the colorspace */
mf->colorspace = ov772x_cfmts[i].colorspace;
}
mf->code = cfmt->code;
mf->width = win->width;
mf->height = win->height;
mf->field = V4L2_FIELD_NONE;
mf->colorspace = cfmt->colorspace;
return 0;
}