[media] exynos4-is: Fix TRY format propagation at MIPI-CSIS subdev

Ensure TRY format is propagated from the sink to source pad.
The format at both pads is always same so the TRY format buffer
for pad 0 is used to hold format for both pads.
While at it remove redundant fmt->pad checking.

Reported-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/platform/exynos4-is/mipi-csis.c b/drivers/media/platform/exynos4-is/mipi-csis.c
index 8636bcd..a2eda9d 100644 (file)
--- a/drivers/media/platform/exynos4-is/mipi-csis.c
+++ b/drivers/media/platform/exynos4-is/mipi-csis.c
@@ -549,10 +549,10 @@ static struct csis_pix_format const *s5pcsis_try_format(
 
 static struct v4l2_mbus_framefmt *__s5pcsis_get_format(
                struct csis_state *state, struct v4l2_subdev_fh *fh,
-               u32 pad, enum v4l2_subdev_format_whence which)
+               enum v4l2_subdev_format_whence which)
 {
        if (which == V4L2_SUBDEV_FORMAT_TRY)
-               return fh ? v4l2_subdev_get_try_format(fh, pad) : NULL;
+               return fh ? v4l2_subdev_get_try_format(fh, 0) : NULL;
 
        return &state->format;
 }
@@ -564,10 +564,7 @@ static int s5pcsis_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
        struct csis_pix_format const *csis_fmt;
        struct v4l2_mbus_framefmt *mf;
 
-       if (fmt->pad != CSIS_PAD_SOURCE && fmt->pad != CSIS_PAD_SINK)
-               return -EINVAL;
-
-       mf = __s5pcsis_get_format(state, fh, fmt->pad, fmt->which);
+       mf = __s5pcsis_get_format(state, fh, fmt->which);
 
        if (fmt->pad == CSIS_PAD_SOURCE) {
                if (mf) {
@@ -594,10 +591,7 @@ static int s5pcsis_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
        struct csis_state *state = sd_to_csis_state(sd);
        struct v4l2_mbus_framefmt *mf;
 
-       if (fmt->pad != CSIS_PAD_SOURCE && fmt->pad != CSIS_PAD_SINK)
-               return -EINVAL;
-
-       mf = __s5pcsis_get_format(state, fh, fmt->pad, fmt->which);
+       mf = __s5pcsis_get_format(state, fh, fmt->which);
        if (!mf)
                return -EINVAL;