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| author | Stefan Schake <stschake@gmail.com> | 2018-03-09 03:53:34 +0300 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2018-03-09 22:24:53 +0300 |
| commit | 05202c241f1476d8e2b30bb2699f6780962972e8 (patch) | |
| tree | 203f6e5b65476f78cc13aef19ba7432fb8910d60 /drivers/gpu/drm/vc4/vc4_regs.h | |
| parent | 60beeccc72cabefcb8874fec542b3142e262b6c2 (diff) | |
| download | linux-05202c241f1476d8e2b30bb2699f6780962972e8.tar.xz | |
drm/vc4: Set premultiplied for alpha formats
Alpha formats in DRM are assumed to be premultiplied, so we should be
setting the PREMULT bit in the plane configuration for HVS.
Changes from v1:
- Use correct has_alpha
Signed-off-by: Stefan Schake <stschake@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/1520556817-97297-2-git-send-email-stschake@gmail.com
Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_regs.h')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_regs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_regs.h b/drivers/gpu/drm/vc4/vc4_regs.h index b9749cb24063..a141496104a6 100644 --- a/drivers/gpu/drm/vc4/vc4_regs.h +++ b/drivers/gpu/drm/vc4/vc4_regs.h @@ -848,6 +848,7 @@ enum hvs_pixel_format { #define SCALER_POS2_ALPHA_MODE_FIXED 1 #define SCALER_POS2_ALPHA_MODE_FIXED_NONZERO 2 #define SCALER_POS2_ALPHA_MODE_FIXED_OVER_0x07 3 +#define SCALER_POS2_ALPHA_PREMULT BIT(29) #define SCALER_POS2_HEIGHT_MASK VC4_MASK(27, 16) #define SCALER_POS2_HEIGHT_SHIFT 16 |