[media] v4l: add g_dv_preset callback to V4L2 subdev
Callback is used to acquire current digital video preset from a subdev.
It is used to avoid keeping dv preset in top-level driver.
Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index 44a5ddb..3bc7f92 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -246,6 +246,8 @@
s_dv_preset: set dv (Digital Video) preset in the sub device. Similar to
s_std()
+ g_dv_preset: get current dv (Digital Video) preset in the sub device.
+
query_dv_preset: query dv preset in the sub device. This is similar to
querystd()
@@ -286,6 +288,8 @@
struct v4l2_dv_enum_preset *preset);
int (*s_dv_preset)(struct v4l2_subdev *sd,
struct v4l2_dv_preset *preset);
+ int (*g_dv_preset)(struct v4l2_subdev *sd,
+ struct v4l2_dv_preset *preset);
int (*query_dv_preset)(struct v4l2_subdev *sd,
struct v4l2_dv_preset *preset);
int (*s_dv_timings)(struct v4l2_subdev *sd,