Re: [PATCH v6 10/10] drm/msm/disp/dpu: check for crtc enable rather than crtc active to release shared resources

[Dmitry Baryshkov <dmitry.baryshkov@linaro.org>]

On 11/07/2022 15:57, Vinod Polimera wrote:
> 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 <quic_vpolimer@quicinc.com>

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

> ---
>   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 5dfb56a..02a71d1 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> @@ -592,7 +592,7 @@ 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);
>   		}


-- 
With best wishes
Dmitry