From fdb5525572ec7dc240ccc960888ae969253fede4 Mon Sep 17 00:00:00 2001 From: Vasily Khoruzhick Date: Wed, 20 Sep 2017 23:29:07 -0700 Subject: dm: video: bridge: add operation to read EDID Add an operation to read EDID, since bridge may have ability to read EDID from the panel that is connected to it, for example LCD<->eDP bridge. Signed-off-by: Vasily Khoruzhick --- include/video_bridge.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'include') diff --git a/include/video_bridge.h b/include/video_bridge.h index c7b8681849c..0699a8dda83 100644 --- a/include/video_bridge.h +++ b/include/video_bridge.h @@ -53,6 +53,16 @@ struct video_bridge_ops { * @return 0 if OK, -ve on error */ int (*set_backlight)(struct udevice *dev, int percent); + + /** + * read_edid() - Read information from EDID + * + * @dev: Device to read from + * @buf: Buffer to read into + * @buf_size: Buffer size + * @return number of bytes read, <=0 for error + */ + int (*read_edid)(struct udevice *dev, u8 *buf, int buf_size); }; #define video_bridge_get_ops(dev) \ @@ -89,4 +99,14 @@ int video_bridge_set_active(struct udevice *dev, bool active); */ int video_bridge_check_attached(struct udevice *dev); +/** + * video_bridge_read_edid() - Read information from EDID + * + * @dev: Device to read from + * @buf: Buffer to read into + * @buf_size: Buffer size + * @return number of bytes read, <=0 for error + */ +int video_bridge_read_edid(struct udevice *dev, u8 *buf, int buf_size); + #endif -- cgit v1.2.3