V4L/DVB (12125): v4l2: add new s_config subdev ops and v4l2_i2c_new_subdev_cfg/board calls

Add a new s_config core ops call: this is called with the irq and platform
data to be used to initialize the subdev.

Added new v4l2_i2c_new_subdev_cfg and v4l2_i2c_new_subdev_board calls
that allows you to pass these new arguments.

The existing v4l2_i2c_new_subdev functions were modified to also call
s_config.

In the future the existing v4l2_i2c_new_subdev functions will be replaced
by a single v4l2_i2c_new_subdev function similar to v4l2_i2c_new_subdev_cfg
but without the irq and platform_data arguments.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index a503e1cee78b..5dcb36785529 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -79,7 +79,11 @@ struct v4l2_decode_vbi_line {
    not yet implemented) since ops provide proper type-checking.
  */
 
-/* init: initialize the sensor registors to some sort of reasonable default
+/* s_config: if set, then it is always called by the v4l2_i2c_new_subdev*
+        functions after the v4l2_subdev was registered. It is used to pass
+        platform data to the subdev which can be used during initialization.
+
+   init: initialize the sensor registors to some sort of reasonable default
         values. Do not use for new drivers and should be removed in existing
         drivers.
 
@@ -96,6 +100,7 @@ struct v4l2_decode_vbi_line {
 struct v4l2_subdev_core_ops {
         int (*g_chip_ident)(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip);
         int (*log_status)(struct v4l2_subdev *sd);
+        int (*s_config)(struct v4l2_subdev *sd, int irq, void *platform_data);
         int (*init)(struct v4l2_subdev *sd, u32 val);
         int (*load_fw)(struct v4l2_subdev *sd);
         int (*reset)(struct v4l2_subdev *sd, u32 val);