On 25-04-30 15:00:51, Krzysztof Kozlowski wrote:
> v12.0 DPU on SM8750 comes with 10-bit color alpha. Add register
> differences and new implementations of setup_alpha_out(),
> setup_border_color() and setup_blend_config().
>
> Reviewed-by: Dmitry Baryshkov <dmitry.barysh...@oss.qualcomm.com>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlow...@linaro.org>
>
> ---
>
> Changes in v4:
> 1. Lowercase hex, use spaces for define indentation
> 2. _dpu_crtc_setup_blend_cfg(): pass mdss_ver instead of ctl
>
> Changes in v3:
> 1. New patch, split from previous big DPU v12.0.
> ---
> drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 19 ++++---
> drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.c | 84
> +++++++++++++++++++++++++++++--
> 2 files changed, 94 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> index
> a4b0fe0d9899b32141928f0b6a16503a49b3c27a..90f47fc15ee5708795701d78a1380f4ab01c1427
> 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> @@ -320,14 +320,20 @@ static bool dpu_crtc_get_scanout_position(struct
> drm_crtc *crtc,
> }
>
> static void _dpu_crtc_setup_blend_cfg(struct dpu_crtc_mixer *mixer,
> - struct dpu_plane_state *pstate, const struct msm_format *format)
> + struct dpu_plane_state *pstate,
> + const struct msm_format *format,
> + const struct dpu_mdss_version *mdss_ver)
> {
> struct dpu_hw_mixer *lm = mixer->hw_lm;
> uint32_t blend_op;
> - uint32_t fg_alpha, bg_alpha;
> + uint32_t fg_alpha, bg_alpha, max_alpha;
>
> fg_alpha = pstate->base.alpha >> 8;
For the 10-bit alpha, you need to shift here by 5 instead of 8.
