[media] V4L: sh_mobile_ceu_camera: don't fail TRY_FMT

VIDIOC_TRY_FMT shouldn't fail if the user requests an unsupported pixel
format. Instead the driver should replace it with a supported one. Fix the
sh_mobile_ceu_camera driver accordingly.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c
index 2ffeb21..61f7f91 100644 (file)
--- a/drivers/media/video/sh_mobile_ceu_camera.c
+++ b/drivers/media/video/sh_mobile_ceu_camera.c
@@ -1858,8 +1858,12 @@ static int sh_mobile_ceu_try_fmt(struct soc_camera_device *icd,
 
        xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
        if (!xlate) {
-               dev_warn(icd->parent, "Format %x not found\n", pixfmt);
-               return -EINVAL;
+               xlate = icd->current_fmt;
+               dev_dbg(icd->parent, "Format %x not found, keeping %x\n",
+                       pixfmt, xlate->host_fmt->fourcc);
+               pixfmt = xlate->host_fmt->fourcc;
+               pix->pixelformat = pixfmt;
+               pix->colorspace = icd->colorspace;
        }
 
        /* FIXME: calculate using depth and bus width */