Re: drm/komeda: Don't flush inactive pipes

[james qian wang (Arm Technology China)]

On Thu, Oct 10, 2019 at 10:30:07AM +0000, Mihail Atanassov wrote:
> HW doesn't allow flushing inactive pipes and raises an MERR interrupt
> if you try to do so. Stop triggering the MERR interrupt in the
> middle of a commit by calling drm_atomic_helper_commit_planes
> with the ACTIVE_ONLY flag.
> 
> Signed-off-by: Mihail Atanassov <mihail.atanassov@xxxxxxx>
> ---
>  drivers/gpu/drm/arm/display/komeda/komeda_kms.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> index 8820ce15ce37..ae274902ff92 100644
> --- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> +++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> @@ -82,7 +82,8 @@ static void komeda_kms_commit_tail(struct drm_atomic_state *old_state)
>  
>  	drm_atomic_helper_commit_modeset_disables(dev, old_state);
>  
> -	drm_atomic_helper_commit_planes(dev, old_state, 0);
> +	drm_atomic_helper_commit_planes(dev, old_state,
> +					DRM_PLANE_COMMIT_ACTIVE_ONLY);
>

Looks good to me.
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@xxxxxxx>

>  	drm_atomic_helper_commit_modeset_enables(dev, old_state);
>