[media] V4L2: add a common V4L2 subdevice platform data type (b1cbab05) · Commits · 戴 / test

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.liakhovetski@gmx.de> Signed-off-by:

Mauro Carvalho Chehab <m.chehab@samsung.com>

include/media/v4l2-subdev.h

+13 −0

Original line number	Diff line number	Diff line
		@@ -559,6 +559,17 @@ 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.
		*/
		@@ -592,6 +603,8 @@ struct v4l2_subdev {
		struct v4l2_async_subdev *asd;
		/* Pointer to the managing notifier. */
		struct v4l2_async_notifier *notifier;
		/* common part of subdevice platform data */
		struct v4l2_subdev_platform_data *pdata;
		};

		#define media_entity_to_v4l2_subdev(ent) \

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