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video/drm: Add bridge get_timing interface 

Some bridge can't get tv edid such as rk1000 cvbs, but
at present bridge can't provide timing without edid. So
we add get_timing interface to provide timing.

Change-Id: Id74802a3bff8140e3677f6633788aacd021afc91
Signed-off-by: Algea Cao <algea.cao@rock-chips.com>
This commit is contained in:
Algea Cao 2019-09-16 10:28:58 +08:00 committed by Jianhong Chen
parent a0614e0a98
commit 75eb6fceb5
3 changed files with 26 additions and 0 deletions
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9
drivers/video/bridge/video-bridge-uclass.c
View File

@ -55,6 +55,15 @@ int video_bridge_read_edid(struct udevice *dev, u8 *buf, int buf_size)
return ops->read_edid(dev, buf, buf_size);
}
int video_bridge_get_timing(struct udevice *dev)
{
struct video_bridge_ops *ops = video_bridge_get_ops(dev);
if (!ops || !ops->get_timing)
return -ENOSYS;
return ops->get_timing(dev);
}
static int video_bridge_pre_probe(struct udevice *dev)
{
struct video_bridge_priv *uc_priv = dev_get_uclass_priv(dev);

2
drivers/video/drm/rockchip_display.c
View File

@ -586,6 +586,8 @@ static int display_init(struct display_state *state)
&bpc);
if (!ret)
edid_print_info((void *)&conn_state->edid);
} else {
ret = video_bridge_get_timing(conn_state->bridge->dev);
}
} else if (conn_funcs->get_timing) {
ret = conn_funcs->get_timing(state);

15
include/video_bridge.h
View File

@ -63,6 +63,14 @@ struct video_bridge_ops {
* @return number of bytes read, <=0 for error
*/
int (*read_edid)(struct udevice *dev, u8 *buf, int buf_size);
/**
* get_timing() - Get timing from bridge
*
* @dev: Device to get timing
* @return 0 if OK, -ve on error
*/
int (*get_timing)(struct udevice *dev);
};
#define video_bridge_get_ops(dev) \
@ -109,4 +117,11 @@ int video_bridge_check_attached(struct udevice *dev);
*/
int video_bridge_read_edid(struct udevice *dev, u8 *buf, int buf_size);
/**
* video_bridge_get_timing() - Get timing from bridge
*
* @dev: Device to get timing
* @return 0 if OK, -ve on error
*/
int video_bridge_get_timing(struct udevice *dev);
#endif