media: aspeed: use different delays for triggering VE H/W reset

In case of watchdog timeout detected while doing mode detection,
it's better triggering video engine hardware reset immediately so
this commit fixes code for the case. Other than the case, it will
trigger video engine hardware reset after RESOLUTION_CHANGE_DELAY.

Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Reviewed-by: Eddie James <eajames@linux.ibm.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c
index d6708dd..ba09309 100644 (file)
--- a/drivers/media/platform/aspeed-video.c
+++ b/drivers/media/platform/aspeed-video.c
@@ -522,7 +522,7 @@ static void aspeed_video_bufs_done(struct aspeed_video *video,
        spin_unlock_irqrestore(&video->lock, flags);
 }
 
-static void aspeed_video_irq_res_change(struct aspeed_video *video)
+static void aspeed_video_irq_res_change(struct aspeed_video *video, ulong delay)
 {
        dev_dbg(video->dev, "Resolution changed; resetting\n");
 
@@ -532,7 +532,7 @@ static void aspeed_video_irq_res_change(struct aspeed_video *video)
        aspeed_video_off(video);
        aspeed_video_bufs_done(video, VB2_BUF_STATE_ERROR);
 
-       schedule_delayed_work(&video->res_work, RESOLUTION_CHANGE_DELAY);
+       schedule_delayed_work(&video->res_work, delay);
 }
 
 static irqreturn_t aspeed_video_irq(int irq, void *arg)
@@ -545,7 +545,7 @@ static irqreturn_t aspeed_video_irq(int irq, void *arg)
         * re-initialize
         */
        if (sts & VE_INTERRUPT_MODE_DETECT_WD) {
-               aspeed_video_irq_res_change(video);
+               aspeed_video_irq_res_change(video, 0);
                return IRQ_HANDLED;
        }
 
@@ -563,7 +563,8 @@ static irqreturn_t aspeed_video_irq(int irq, void *arg)
                         * Signal acquired while NOT doing resolution
                         * detection; reset the engine and re-initialize
                         */
-                       aspeed_video_irq_res_change(video);
+                       aspeed_video_irq_res_change(video,
+                                                   RESOLUTION_CHANGE_DELAY);
                        return IRQ_HANDLED;
                }
        }