drm/msm/dpu: drop redundant plane dst check from dpu_crtc_atomic_check()

The helper drm_atomic_helper_check_plane_state() already checks whether
the scaled and clipped plane falls into the CRTC visible region (and
clears plane_state->visible if it doesn't). Drop the redundant check
from dpu_crtc_atomic_check().

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/527343/
Link: https://lore.kernel.org/r/20230316161653.4106395-18-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index 094fc11..dba5e4f 100644 (file)
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -1157,11 +1157,9 @@ static int dpu_crtc_atomic_check(struct drm_crtc *crtc,
 
        const struct drm_plane_state *pstate;
        struct drm_plane *plane;
-       struct drm_display_mode *mode;
 
        int rc = 0;
 
-       struct drm_rect crtc_rect = { 0 };
        bool needs_dirtyfb = dpu_crtc_needs_dirtyfb(crtc_state);
 
        if (!crtc_state->enable || !crtc_state->active) {
@@ -1172,7 +1170,6 @@ static int dpu_crtc_atomic_check(struct drm_crtc *crtc,
                return 0;
        }
 
-       mode = &crtc_state->adjusted_mode;
        DRM_DEBUG_ATOMIC("%s: check\n", dpu_crtc->name);
 
        /* force a full mode set if active state changed */
@@ -1182,13 +1179,9 @@ static int dpu_crtc_atomic_check(struct drm_crtc *crtc,
        if (cstate->num_mixers)
                _dpu_crtc_setup_lm_bounds(crtc, crtc_state);
 
-       crtc_rect.x2 = mode->hdisplay;
-       crtc_rect.y2 = mode->vdisplay;
-
        /* FIXME: move this to dpu_plane_atomic_check? */
        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;
 
                if (IS_ERR_OR_NULL(pstate)) {
                        rc = PTR_ERR(pstate);
@@ -1201,15 +1194,6 @@ static int dpu_crtc_atomic_check(struct drm_crtc *crtc,
                        continue;
 
                dpu_pstate->needs_dirtyfb = needs_dirtyfb;
-
-               dst = drm_plane_state_dest(pstate);
-               if (!drm_rect_intersect(&clip, &dst)) {
-                       DPU_ERROR("invalid vertical/horizontal destination\n");
-                       DPU_ERROR("display: " DRM_RECT_FMT " plane: "
-                                 DRM_RECT_FMT "\n", DRM_RECT_ARG(&crtc_rect),
-                                 DRM_RECT_ARG(&dst));
-                       return -E2BIG;
-               }
        }
 
        atomic_inc(&_dpu_crtc_get_kms(crtc)->bandwidth_ref);