diff options
| author | Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com> | 2022-08-17 16:28:02 +0300 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2022-09-07 23:48:40 +0300 |
| commit | 6d8277cfda96c7dd17a43f645858d2d39a7a4a20 (patch) | |
| tree | 1f3d2f9566f302bf7c39d9797d53c415109e69f8 /drivers/gpu/drm/rcar-du/rcar_du_drv.h | |
| parent | 48d43c4f3f55f4599c294007644184fdce44dafe (diff) | |
| download | linux-stable-6d8277cfda96c7dd17a43f645858d2d39a7a4a20.tar.gz linux-stable-6d8277cfda96c7dd17a43f645858d2d39a7a4a20.tar.bz2 linux-stable-6d8277cfda96c7dd17a43f645858d2d39a7a4a20.zip | |
drm: rcar-du: Fix r8a779a0 color issue
The rcar DU driver on r8a779a0 has a bug causing some specific colors
getting converted to transparent colors, which then (usually) show as
black pixels on the screen.
The reason seems to be that the driver sets PnMR_SPIM_ALP bit in
PnMR.SPIM field, which is an illegal setting on r8a779a0. The
PnMR_SPIM_EOR bit also illegal.
Add a new feature flag for this (lack of a) feature and make sure the
bits are zero on r8a779a0.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Diffstat (limited to 'drivers/gpu/drm/rcar-du/rcar_du_drv.h')
| -rw-r--r-- | drivers/gpu/drm/rcar-du/rcar_du_drv.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h b/drivers/gpu/drm/rcar-du/rcar_du_drv.h index bfad7775d9a1..712389c7b3d0 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h @@ -31,6 +31,7 @@ struct rcar_du_device; #define RCAR_DU_FEATURE_VSP1_SOURCE BIT(2) /* Has inputs from VSP1 */ #define RCAR_DU_FEATURE_INTERLACED BIT(3) /* HW supports interlaced */ #define RCAR_DU_FEATURE_TVM_SYNC BIT(4) /* Has TV switch/sync modes */ +#define RCAR_DU_FEATURE_NO_BLENDING BIT(5) /* PnMR.SPIM does not have ALP nor EOR bits */ #define RCAR_DU_QUIRK_ALIGN_128B BIT(0) /* Align pitches to 128 bytes */ |