@@ -1264,10 +1264,6 @@ static int dpu_crtc_atomic_check(struct drm_crtc *crtc,
DRM_DEBUG_ATOMIC("%s: check\n", dpu_crtc->name);
- /* force a full mode set if active state changed */
- if (crtc_state->active_changed)
- crtc_state->mode_changed = true;
-
if (cstate->num_mixers) {
rc = _dpu_crtc_check_and_setup_lm_bounds(crtc, crtc_state);
if (rc)
@@ -793,12 +793,11 @@ static int dpu_encoder_virt_atomic_check(
crtc_state->mode_changed = true;
/*
* Release and Allocate resources on every modeset
- * Dont allocate when active is false.
*/
if (drm_atomic_crtc_needs_modeset(crtc_state)) {
dpu_rm_release(global_state, drm_enc);
- if (!crtc_state->active_changed || crtc_state->enable)
+ if (crtc_state->enable)
ret = dpu_rm_reserve(&dpu_kms->rm, global_state,
drm_enc, crtc_state, &topology);
if (!ret)
The driver isn't supposed to consult crtc_state->active/active_check for resource allocation. Instead all resources should be allocated if crtc_state->enabled is set. Stop consulting active / active_changed in order to determine whether the hardware resources should be (re)allocated. Fixes: ccc862b957c6 ("drm/msm/dpu: Fix reservation failures in modeset") Reported-by: Simona Vetter <simona.vetter@ffwll.ch> Closes: https://lore.kernel.org/dri-devel/ZtW_S0j5AEr4g0QW@phenom.ffwll.local/ Reviewed-by: Simona Vetter <simona.vetter@ffwll.ch> Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> --- drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 4 ---- drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 3 +-- 2 files changed, 1 insertion(+), 6 deletions(-)