Hi,
On 30 July 2015 at 08:03, Maarten Lankhorst
<maarten.lankhorst@xxxxxxxxxxxxxxx> wrote:
> This will cause drm_atomic_helper_page_flip and drm_mode_atomic_ioctl to
> fail with -EINVAL if a event is requested on a inactive crtc.
>
> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
> ---
> diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
> index d719ce0b10a0..679577e8e02d 100644
> --- a/drivers/gpu/drm/drm_atomic.c
> +++ b/drivers/gpu/drm/drm_atomic.c
> @@ -476,6 +476,12 @@ static int drm_atomic_crtc_check(struct drm_crtc *crtc,
> return -EINVAL;
> }
>
> + if (!state->active && state->event) {
> + DRM_DEBUG_ATOMIC("[CRTC:%d] requesting event and not active\n",
> + crtc->base.id);
> + return -EINVAL;
> + }
Hmm, even if disabling? Maybe (!crtc->state->active && !state->active)
&& state->event.
Cheers,
Daniel
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