During the process of os-installation, detected resolution's height
could be less than the correct one.
Increase min-required-count of stable signal to fix the problem.
Fixes: d2b4387f3bdf ("media: platform: Add Aspeed Video Engine driver")
Signed-off-by: Jammy Huang <jammy_huang@xxxxxxxxxxxxxx>
---
drivers/media/platform/aspeed-video.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c
index 5da52646b298..625a77ddb479 100644
--- a/drivers/media/platform/aspeed-video.c
+++ b/drivers/media/platform/aspeed-video.c
@@ -196,6 +196,12 @@
#define VE_INTERRUPT_VSYNC_DESC BIT(11)
#define VE_MODE_DETECT 0x30c
+#define VE_MODE_DT_HOR_TOLER GENMASK(31, 28)
+#define VE_MODE_DT_VER_TOLER GENMASK(27, 24)
+#define VE_MODE_DT_HOR_STABLE GENMASK(23, 20)
+#define VE_MODE_DT_VER_STABLE GENMASK(19, 16)
+#define VE_MODE_DT_EDG_THROD GENMASK(15, 8)
+
#define VE_MEM_RESTRICT_START 0x310
#define VE_MEM_RESTRICT_END 0x314
@@ -1199,7 +1205,12 @@ static void aspeed_video_init_regs(struct aspeed_video *video)
aspeed_video_write(video, VE_SCALING_FILTER3, 0x00200000);
/* Set mode detection defaults */
- aspeed_video_write(video, VE_MODE_DETECT, 0x22666500);
+ aspeed_video_write(video, VE_MODE_DETECT,
+ FIELD_PREP(VE_MODE_DT_HOR_TOLER, 2) |
+ FIELD_PREP(VE_MODE_DT_VER_TOLER, 2) |
+ FIELD_PREP(VE_MODE_DT_HOR_STABLE, 10) |
+ FIELD_PREP(VE_MODE_DT_VER_STABLE, 10) |
+ FIELD_PREP(VE_MODE_DT_EDG_THROD, 0x65));
aspeed_video_write(video, VE_BCD_CTRL, 0);
}
--
2.25.1
