This struct shall be used by subdevice drivers to pass per-subdevice data,
e.g. power supplies, to generic V4L2 methods, at the same time allowing
optional host-specific extensions via the host_priv pointer. To avoid
having to pass two pointers to those methods, add a pointer to this new
struct to struct v4l2_subdev.
Signed-off-by: Guennadi Liakhovetski <g.liakhovet...@gmx.de>
---
include/media/v4l2-subdev.h | 13 +++++++++++++
1 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index eb91366..b15c6e0 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -561,6 +561,17 @@ struct v4l2_subdev_internal_ops {
/* Set this flag if this subdev generates events. */
#define V4L2_SUBDEV_FL_HAS_EVENTS (1U << 3)
+struct regulator_bulk_data;
+
+struct v4l2_subdev_platform_data {
+ /* Optional regulators uset to power on/off the subdevice */
+ struct regulator_bulk_data *regulators;
+ int num_regulators;
+
+ /* Per-subdevice data, specific for a certain video host device */
+ void *host_priv;
+};
+
/* Each instance of a subdev driver should create this struct, either
stand-alone or embedded in a larger struct.
*/
@@ -589,6 +600,8 @@ struct v4l2_subdev {
/* pointer to the physical device */
struct device *dev;
struct v4l2_async_subdev_list asdl;
+ /* common part of subdevice platform data */
+ struct v4l2_subdev_platform_data *pdata;
};
static inline struct v4l2_subdev *v4l2_async_to_subdev(
--
1.7.2.5
--
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