From d6f9a60f648e10adbf12a8d24c44f8e69c905c4f Mon Sep 17 00:00:00 2001 From: Jammy Huang Date: Wed, 26 Jan 2022 09:47:24 +0800 Subject: media: aspeed: Add macro for the fields of the mode-detect registers VE_MODE_DT_HOR_TOLER: the tolerance in detecting for stable horizontal signal. VE_MODE_DT_VER_TOLER: the tolerance in detecting for stable vertical signal. VE_MODE_DT_HOR_STABLE: the minimum required count in detecting stable HSYNC signal to set mode detection horizontal signal stable. VE_MODE_DT_VER_STABLE: the minimum required count in detecting stable VSYNC signal to set mode detection vertical signal stable. Signed-off-by: Jammy Huang Signed-off-by: Hans Verkuil --- drivers/media/platform/aspeed-video.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'drivers/media/platform/aspeed-video.c') diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c index 06ab9e9a884c..cc6825f6bb5a 100644 --- a/drivers/media/platform/aspeed-video.c +++ b/drivers/media/platform/aspeed-video.c @@ -180,6 +180,12 @@ #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 @@ -1135,7 +1141,12 @@ 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, 6) | + FIELD_PREP(VE_MODE_DT_VER_STABLE, 6) | + FIELD_PREP(VE_MODE_DT_EDG_THROD, 0x65)); } static void aspeed_video_start(struct aspeed_video *video) -- cgit v1.2.3-59-g8ed1b