drm/bridge: Provide a way to embed timing info in bridges

#include <drm/drm_modes.h>

struct drm_bridge;

struct drm_bridge_timings;

struct drm_panel;

/**

	void (*enable)(struct drm_bridge *bridge);

};

/**

 * struct drm_bridge_timings - timing information for the bridge

 */

struct drm_bridge_timings {

	/**

	 * @sampling_edge:

	 *

	 * Tells whether the bridge samples the digital input signal

	 * from the display engine on the positive or negative edge of the

	 * clock, this should reuse the DRM_BUS_FLAG_PIXDATA_[POS|NEG]EDGE

	 * bitwise flags from the DRM connector (bit 2 and 3 valid).

	 */

	u32 sampling_edge;

	/**

	 * @setup_time_ps:

	 *

	 * Defines the time in picoseconds the input data lines must be

	 * stable before the clock edge.

	 */

	u32 setup_time_ps;

	/**

	 * @hold_time_ps:

	 *

	 * Defines the time in picoseconds taken for the bridge to sample the

	 * input signal after the clock edge.

	 */

	u32 hold_time_ps;

};

/**

 * struct drm_bridge - central DRM bridge control structure

 * @dev: DRM device this bridge belongs to

 * @next: the next bridge in the encoder chain

 * @of_node: device node pointer to the bridge

 * @list: to keep track of all added bridges

 * @timings: the timing specification for the bridge, if any (may

 * be NULL)

 * @funcs: control functions

 * @driver_private: pointer to the bridge driver's internal context

 */

	struct device_node *of_node;

#endif

	struct list_head list;

	const struct drm_bridge_timings *timings;

	const struct drm_bridge_funcs *funcs;

	void *driver_private;