diff options
| author | Stefan Agner <stefan@agner.ch> | 2015-11-19 01:47:35 +0300 |
|---|---|---|
| committer | Stefan Agner <stefan@agner.ch> | 2016-02-26 03:13:16 +0300 |
| commit | 69855819c7683c88e7f136f98b790392ebf9fe88 (patch) | |
| tree | 4c4691aad5c9043c6d29733bc9e941f31c0a90f4 /drivers/gpu/drm | |
| parent | 638c93f61988c6fcc821646399f1fdd3895a34a2 (diff) | |
| download | linux-69855819c7683c88e7f136f98b790392ebf9fe88.tar.xz | |
drm/fsl-dcu: fix alpha blending
Fix alpha blending by enabling alpha blending for the whole frame if
a color mode with alpha channel is selected (DRM_FORMAT_ARGB*). Also
support color modes without alpha channel (DRM_FORMAT_XRGB*) by just
not enabling alpha blending on layer level.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.h | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c | 31 |
2 files changed, 23 insertions, 12 deletions
diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.h b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.h index 579b9e44e764..6413ac9e4769 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.h +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.h @@ -133,7 +133,9 @@ #define DCU_LAYER_RLE_EN BIT(15) #define DCU_LAYER_LUOFFS(x) ((x) << 4) #define DCU_LAYER_BB_ON BIT(2) -#define DCU_LAYER_AB(x) (x) +#define DCU_LAYER_AB_NONE 0 +#define DCU_LAYER_AB_CHROMA_KEYING 1 +#define DCU_LAYER_AB_WHOLE_FRAME 2 #define DCU_LAYER_CKMAX_R(x) ((x) << 16) #define DCU_LAYER_CKMAX_G(x) ((x) << 8) diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c index 1ea70314be1d..274558b3b32b 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c @@ -47,8 +47,11 @@ static int fsl_dcu_drm_plane_atomic_check(struct drm_plane *plane, switch (fb->pixel_format) { case DRM_FORMAT_RGB565: case DRM_FORMAT_RGB888: + case DRM_FORMAT_XRGB8888: case DRM_FORMAT_ARGB8888: - case DRM_FORMAT_BGRA4444: + case DRM_FORMAT_XRGB4444: + case DRM_FORMAT_ARGB4444: + case DRM_FORMAT_XRGB1555: case DRM_FORMAT_ARGB1555: case DRM_FORMAT_YUV422: return 0; @@ -81,7 +84,7 @@ static void fsl_dcu_drm_plane_atomic_update(struct drm_plane *plane, struct drm_plane_state *state = plane->state; struct drm_framebuffer *fb = plane->state->fb; struct drm_gem_cma_object *gem; - unsigned int alpha, bpp; + unsigned int alpha = DCU_LAYER_AB_NONE, bpp; int index; if (!fb) @@ -96,27 +99,30 @@ static void fsl_dcu_drm_plane_atomic_update(struct drm_plane *plane, switch (fb->pixel_format) { case DRM_FORMAT_RGB565: bpp = FSL_DCU_RGB565; - alpha = 0xff; break; case DRM_FORMAT_RGB888: bpp = FSL_DCU_RGB888; - alpha = 0xff; break; case DRM_FORMAT_ARGB8888: + alpha = DCU_LAYER_AB_WHOLE_FRAME; + /* fall-through */ + case DRM_FORMAT_XRGB8888: bpp = FSL_DCU_ARGB8888; - alpha = 0xff; break; - case DRM_FORMAT_BGRA4444: + case DRM_FORMAT_ARGB4444: + alpha = DCU_LAYER_AB_WHOLE_FRAME; + /* fall-through */ + case DRM_FORMAT_XRGB4444: bpp = FSL_DCU_ARGB4444; - alpha = 0xff; break; case DRM_FORMAT_ARGB1555: + alpha = DCU_LAYER_AB_WHOLE_FRAME; + /* fall-through */ + case DRM_FORMAT_XRGB1555: bpp = FSL_DCU_ARGB1555; - alpha = 0xff; break; case DRM_FORMAT_YUV422: bpp = FSL_DCU_YUV422; - alpha = 0xff; break; default: return; @@ -132,9 +138,9 @@ static void fsl_dcu_drm_plane_atomic_update(struct drm_plane *plane, DCU_CTRLDESCLN(index, 3), gem->paddr); regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(index, 4), DCU_LAYER_EN | - DCU_LAYER_TRANS(alpha) | + DCU_LAYER_TRANS(0xff) | DCU_LAYER_BPP(bpp) | - DCU_LAYER_AB(0)); + alpha); regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(index, 5), DCU_LAYER_CKMAX_R(0xFF) | DCU_LAYER_CKMAX_G(0xFF) | @@ -202,8 +208,11 @@ static const struct drm_plane_funcs fsl_dcu_drm_plane_funcs = { static const u32 fsl_dcu_drm_plane_formats[] = { DRM_FORMAT_RGB565, DRM_FORMAT_RGB888, + DRM_FORMAT_XRGB8888, DRM_FORMAT_ARGB8888, + DRM_FORMAT_XRGB4444, DRM_FORMAT_ARGB4444, + DRM_FORMAT_XRGB1555, DRM_FORMAT_ARGB1555, DRM_FORMAT_YUV422, }; |