[media] v4l2-subdev: replace v4l2_subdev_fh by v4l2_subdev_pad_config
If a subdevice pad op is called from a bridge driver, then there is
no v4l2_subdev_fh struct that can be passed to the subdevice. This
made it hard to use such subdevs from a bridge driver.
This patch replaces the v4l2_subdev_fh pointer by a v4l2_subdev_pad_config
pointer in the pad ops. This allows bridge drivers to use the various
try_ pad ops by creating a v4l2_subdev_pad_config struct and passing it
along to the pad op.
The v4l2_subdev_get_try_* macros had to be changed because of this, so
I also took the opportunity to use the full name of the v4l2_subdev_get_try_*
functions in the __V4L2_SUBDEV_MK_GET_TRY macro arguments: if you now do
'git grep v4l2_subdev_get_try_format' you will actually find the header
where it is defined.
One remark regarding the drivers/staging/media/davinci_vpfe patches: the
*_init_formats() functions assumed that fh could be NULL. However, that's
not true for this driver, it's always set. This is almost certainly a copy
and paste from the omap3isp driver. I've updated the code to reflect the
fact that fh is never NULL.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Tested-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
diff --git a/drivers/media/i2c/s5k6a3.c b/drivers/media/i2c/s5k6a3.c
index 91b841a..bc389d5 100644
--- a/drivers/media/i2c/s5k6a3.c
+++ b/drivers/media/i2c/s5k6a3.c
@@ -99,7 +99,7 @@
}
static int s5k6a3_enum_mbus_code(struct v4l2_subdev *sd,
- struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_mbus_code_enum *code)
{
if (code->index >= ARRAY_SIZE(s5k6a3_formats))
@@ -123,17 +123,17 @@
}
static struct v4l2_mbus_framefmt *__s5k6a3_get_format(
- struct s5k6a3 *sensor, struct v4l2_subdev_fh *fh,
+ struct s5k6a3 *sensor, struct v4l2_subdev_pad_config *cfg,
u32 pad, enum v4l2_subdev_format_whence which)
{
if (which == V4L2_SUBDEV_FORMAT_TRY)
- return fh ? v4l2_subdev_get_try_format(fh, pad) : NULL;
+ return cfg ? v4l2_subdev_get_try_format(&sensor->subdev, cfg, pad) : NULL;
return &sensor->format;
}
static int s5k6a3_set_fmt(struct v4l2_subdev *sd,
- struct v4l2_subdev_fh *fh,
+ struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *fmt)
{
struct s5k6a3 *sensor = sd_to_s5k6a3(sd);
@@ -141,7 +141,7 @@
s5k6a3_try_format(&fmt->format);
- mf = __s5k6a3_get_format(sensor, fh, fmt->pad, fmt->which);
+ mf = __s5k6a3_get_format(sensor, cfg, fmt->pad, fmt->which);
if (mf) {
mutex_lock(&sensor->lock);
if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE)
@@ -152,13 +152,13 @@
}
static int s5k6a3_get_fmt(struct v4l2_subdev *sd,
- struct v4l2_subdev_fh *fh,
- struct v4l2_subdev_format *fmt)
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_format *fmt)
{
struct s5k6a3 *sensor = sd_to_s5k6a3(sd);
struct v4l2_mbus_framefmt *mf;
- mf = __s5k6a3_get_format(sensor, fh, fmt->pad, fmt->which);
+ mf = __s5k6a3_get_format(sensor, cfg, fmt->pad, fmt->which);
mutex_lock(&sensor->lock);
fmt->format = *mf;
@@ -174,7 +174,7 @@
static int s5k6a3_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
- struct v4l2_mbus_framefmt *format = v4l2_subdev_get_try_format(fh, 0);
+ struct v4l2_mbus_framefmt *format = v4l2_subdev_get_try_format(sd, fh->pad, 0);
*format = s5k6a3_formats[0];
format->width = S5K6A3_DEFAULT_WIDTH;