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| author | Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2023-03-16 19:16:36 +0300 |
|---|---|---|
| committer | Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2023-04-06 20:29:42 +0300 |
| commit | a1d38f1152c570b882cdf4f96b75113d7c703ab1 (patch) | |
| tree | 9424154efff9f6bc169c531566c76caa54699494 /drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | |
| parent | e35f68d18bad460a9af33213d97c90a8d91b49eb (diff) | |
| download | linux-a1d38f1152c570b882cdf4f96b75113d7c703ab1.tar.xz | |
drm/msm/dpu: don't use unsupported blend stages
The dpu_crtc_atomic_check() compares blending stage with DPU_STAGE_MAX
(maximum amount of blending stages supported by the driver), however we
should compare it against .max_mixer_blendstages, the maximum blend
stage supported by the mixer.
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Tested-by: Abhinav Kumar <quic_abhinavk@quicinc.com> # sc7280
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/527338/
Link: https://lore.kernel.org/r/20230316161653.4106395-16-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Diffstat (limited to 'drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c index 351b00cf0f5b..94e8bdaeb530 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c @@ -1154,6 +1154,7 @@ static int dpu_crtc_atomic_check(struct drm_crtc *crtc, crtc); struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); struct dpu_crtc_state *cstate = to_dpu_crtc_state(crtc_state); + struct dpu_kms *dpu_kms = _dpu_crtc_get_kms(crtc); const struct drm_plane_state *pstate; struct drm_plane *plane; @@ -1189,7 +1190,7 @@ static int dpu_crtc_atomic_check(struct drm_crtc *crtc, drm_atomic_crtc_state_for_each_plane_state(plane, pstate, crtc_state) { struct dpu_plane_state *dpu_pstate = to_dpu_plane_state(pstate); struct drm_rect dst, clip = crtc_rect; - int z_pos; + int stage; if (IS_ERR_OR_NULL(pstate)) { rc = PTR_ERR(pstate); @@ -1214,17 +1215,16 @@ static int dpu_crtc_atomic_check(struct drm_crtc *crtc, return -E2BIG; } - z_pos = pstate->normalized_zpos; - - /* verify z_pos setting before using it */ - if (z_pos >= DPU_STAGE_MAX - DPU_STAGE_0) { + /* verify stage setting before using it */ + stage = DPU_STAGE_0 + pstate->normalized_zpos; + if (stage >= dpu_kms->catalog->caps->max_mixer_blendstages) { DPU_ERROR("> %d plane stages assigned\n", - DPU_STAGE_MAX - DPU_STAGE_0); + dpu_kms->catalog->caps->max_mixer_blendstages - DPU_STAGE_0); return -EINVAL; } - to_dpu_plane_state(pstate)->stage = z_pos + DPU_STAGE_0; - DRM_DEBUG_ATOMIC("%s: zpos %d\n", dpu_crtc->name, z_pos); + to_dpu_plane_state(pstate)->stage = stage; + DRM_DEBUG_ATOMIC("%s: stage %d\n", dpu_crtc->name, stage); } |