2022-12-14 10:15:50

by Vinod Polimera

[permalink] [raw]
Subject: [PATCH v9 10/15] drm/msm/disp/dpu: check for crtc enable rather than crtc active to release shared resources

According to KMS documentation, The driver must not release any shared
resources if active is set to false but enable still true.

Fixes: ccc862b957c6 ("drm/msm/dpu: Fix reservation failures in modeset")
Signed-off-by: Vinod Polimera <[email protected]>
Reviewed-by: Dmitry Baryshkov <[email protected]>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index a0cb089..dbf0d96 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -677,7 +677,7 @@ static int dpu_encoder_virt_atomic_check(
if (drm_atomic_crtc_needs_modeset(crtc_state)) {
dpu_rm_release(global_state, drm_enc);

- if (!crtc_state->active_changed || crtc_state->active)
+ if (!crtc_state->active_changed || crtc_state->enable)
ret = dpu_rm_reserve(&dpu_kms->rm, global_state,
drm_enc, crtc_state, topology);
}
--
2.7.4