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Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm= /disp/dpu1/dpu_crtc.c index d4b545448d74657aafc96e9042c7756654b4f0e7..651159e8731194d75b52c05158b= fd1c9bad8b10c 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c @@ -335,13 +335,13 @@ static void _dpu_crtc_setup_blend_cfg(struct dpu_crtc= _mixer *mixer, max_alpha =3D 0x3ff; fg_alpha =3D pstate->base.alpha >> 6; } - bg_alpha =3D max_alpha - fg_alpha; =20 /* default to opaque blending */ if (pstate->base.pixel_blend_mode =3D=3D DRM_MODE_BLEND_PIXEL_NONE || !format->alpha_enable) { blend_op =3D DPU_BLEND_FG_ALPHA_FG_CONST | DPU_BLEND_BG_ALPHA_BG_CONST; + bg_alpha =3D max_alpha - fg_alpha; } else if (pstate->base.pixel_blend_mode =3D=3D DRM_MODE_BLEND_PREMULTI) { blend_op =3D DPU_BLEND_FG_ALPHA_FG_CONST | DPU_BLEND_BG_ALPHA_FG_PIXEL; 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Make _dpu_crtc_setup_blend_cfg() use full 16-bit values for alpha and reduce alpha only in DPU-specific callbacks. Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 16 +++++----------- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.c | 10 ++++++---- 2 files changed, 11 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm= /disp/dpu1/dpu_crtc.c index 651159e8731194d75b52c05158bfd1c9bad8b10c..a280c136104added1dbb2b432f1= 5680bc1d5bd36 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c @@ -326,26 +326,20 @@ static void _dpu_crtc_setup_blend_cfg(struct dpu_crtc= _mixer *mixer, { struct dpu_hw_mixer *lm =3D mixer->hw_lm; u32 blend_op; - u32 fg_alpha, bg_alpha, max_alpha; + u32 fg_alpha, bg_alpha; =20 - if (mdss_ver->core_major_ver < 12) { - max_alpha =3D 0xff; - fg_alpha =3D pstate->base.alpha >> 8; - } else { - max_alpha =3D 0x3ff; - fg_alpha =3D pstate->base.alpha >> 6; - } + fg_alpha =3D pstate->base.alpha; =20 /* default to opaque blending */ if (pstate->base.pixel_blend_mode =3D=3D DRM_MODE_BLEND_PIXEL_NONE || !format->alpha_enable) { blend_op =3D DPU_BLEND_FG_ALPHA_FG_CONST | DPU_BLEND_BG_ALPHA_BG_CONST; - bg_alpha =3D max_alpha - fg_alpha; + bg_alpha =3D DRM_BLEND_ALPHA_OPAQUE - fg_alpha; } else if (pstate->base.pixel_blend_mode =3D=3D DRM_MODE_BLEND_PREMULTI) { blend_op =3D DPU_BLEND_FG_ALPHA_FG_CONST | DPU_BLEND_BG_ALPHA_FG_PIXEL; - if (fg_alpha !=3D max_alpha) { + if (fg_alpha !=3D DRM_BLEND_ALPHA_OPAQUE) { bg_alpha =3D fg_alpha; blend_op |=3D DPU_BLEND_BG_MOD_ALPHA | DPU_BLEND_BG_INV_MOD_ALPHA; @@ -357,7 +351,7 @@ static void _dpu_crtc_setup_blend_cfg(struct dpu_crtc_m= ixer *mixer, /* coverage blending */ blend_op =3D DPU_BLEND_FG_ALPHA_FG_PIXEL | DPU_BLEND_BG_ALPHA_FG_PIXEL; - if (fg_alpha !=3D max_alpha) { + if (fg_alpha !=3D DRM_BLEND_ALPHA_OPAQUE) { bg_alpha =3D fg_alpha; blend_op |=3D DPU_BLEND_FG_MOD_ALPHA | DPU_BLEND_FG_INV_MOD_ALPHA | diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.c b/drivers/gpu/drm/ms= m/disp/dpu1/dpu_hw_lm.c index e8a76d5192c230fd64d748634ca8574a59aac02c..fb8c94fdb829be6f89bfcc6c5a8= 3fdbd27778bf2 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.c @@ -139,7 +139,8 @@ static void dpu_hw_lm_setup_blend_config_combined_alpha= (struct dpu_hw_mixer *ctx if (WARN_ON(stage_off < 0)) return; =20 - const_alpha =3D (bg_alpha & 0xFF) | ((fg_alpha & 0xFF) << 16); + const_alpha =3D ((bg_alpha >> 8) & 0xff) | + (((fg_alpha >> 8) & 0xff) << 16); DPU_REG_WRITE(c, LM_BLEND0_CONST_ALPHA + stage_off, const_alpha); DPU_REG_WRITE(c, LM_BLEND0_OP + stage_off, blend_op); } @@ -160,7 +161,8 @@ dpu_hw_lm_setup_blend_config_combined_alpha_v12(struct = dpu_hw_mixer *ctx, if (WARN_ON(stage_off < 0)) return; =20 - const_alpha =3D (bg_alpha & 0x3ff) | ((fg_alpha & 0x3ff) << 16); + const_alpha =3D ((bg_alpha >> 6) & 0x3ff) | + (((fg_alpha >> 6) & 0x3ff) << 16); DPU_REG_WRITE(c, LM_BLEND0_CONST_ALPHA_V12 + stage_off, const_alpha); DPU_REG_WRITE(c, LM_BLEND0_OP + stage_off, blend_op); } @@ -178,8 +180,8 @@ static void dpu_hw_lm_setup_blend_config(struct dpu_hw_= mixer *ctx, if (WARN_ON(stage_off < 0)) return; =20 - DPU_REG_WRITE(c, LM_BLEND0_FG_ALPHA + stage_off, fg_alpha); - DPU_REG_WRITE(c, LM_BLEND0_BG_ALPHA + stage_off, bg_alpha); + DPU_REG_WRITE(c, LM_BLEND0_FG_ALPHA + stage_off, fg_alpha >> 8); + DPU_REG_WRITE(c, LM_BLEND0_BG_ALPHA + stage_off, bg_alpha >> 8); DPU_REG_WRITE(c, LM_BLEND0_OP + stage_off, blend_op); } =20 --=20 2.47.2