Re: [PATCH v2] media: aspeed: fix mode-detect always time out at 2nd run

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Dear Joel,

Sure. Thanks for your reminder.

On 2021/11/3 上午 09:53, Joel Stanley wrote:
On Wed, 3 Nov 2021 at 01:47, Joel Stanley <joel@xxxxxxxxx> wrote:
On Wed, 3 Nov 2021 at 01:13, Jammy Huang <jammy_huang@xxxxxxxxxxxxxx> wrote:
aspeed_video_get_resolution() will try to do res-detect again if the
timing got in last try is invalid. But it will always time out because
VE_SEQ_CTRL_TRIG_MODE_DET is only cleared after 1st mode-detect.

To fix the problem, just clear VE_SEQ_CTRL_TRIG_MODE_DET before setting
it in aspeed_video_enable_mode_detect().

Signed-off-by: Jammy Huang <jammy_huang@xxxxxxxxxxxxxx>
Acked-by: Paul Menzel <pmenzel@xxxxxxxxxxxxx>
Reviewed-by: Joel Stanley <joel@xxxxxxxxx>
When applying, can we please have this tag added:

Fixes: d2b4387f3bdf ("media: platform: Add Aspeed Video Engine driver")

Cheers,

Joel


---
v2:
   - update commit message
---
  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 5ffbabf884eb..fea5e4d0927e 100644
--- a/drivers/media/platform/aspeed-video.c
+++ b/drivers/media/platform/aspeed-video.c
@@ -518,6 +518,10 @@ 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);
  }
@@ -809,10 +813,6 @@ 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

--
Best Regards
Jammy




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