aspeed_video_get_resolution() will try to do res-detect again if the timing got in last try is invalid. But it will always timeout because VE_SEQ_CTRL_TRIG_MODE_DET only cleared after 1st mode-detect. To fix the problem, just clear VE_SEQ_CTRL_TRIG_MODE_DET before set in aspeed_video_enable_mode_detect(). Signed-off-by: Jammy Huang <jammy_huang@xxxxxxxxxxxxxx> --- drivers/media/platform/aspeed-video.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c index cd2b71c81e31..b470f4b68aa0 100644 --- a/drivers/media/platform/aspeed-video.c +++ b/drivers/media/platform/aspeed-video.c @@ -611,6 +611,10 @@ static void aspeed_video_enable_mode_detect(struct aspeed_video *video) aspeed_video_update(video, VE_INTERRUPT_CTRL, 0, VE_INTERRUPT_MODE_DETECT); + /* Disable mode detect in order to re-trigger */ + aspeed_video_update(video, VE_SEQ_CTRL, + VE_SEQ_CTRL_TRIG_MODE_DET, 0); + /* Trigger mode detect */ aspeed_video_update(video, VE_SEQ_CTRL, 0, VE_SEQ_CTRL_TRIG_MODE_DET); } @@ -930,10 +934,6 @@ static void aspeed_video_get_resolution(struct aspeed_video *video) return; } - /* Disable mode detect in order to re-trigger */ - aspeed_video_update(video, VE_SEQ_CTRL, - VE_SEQ_CTRL_TRIG_MODE_DET, 0); - aspeed_video_check_and_set_polarity(video); aspeed_video_enable_mode_detect(video); -- 2.25.1
