From mboxrd@z Thu Jan  1 00:00:00 1970
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Subject: Re: [PATCH] Fixes: fc2a69f3903d ("drm/atomic: Handling the case when,
 setting old crtc for plane")
Date: Wed, 5 Sep 2018 11:36:20 +0200
Message-ID: <01729c87-3e8b-4079-0deb-86d885f0f408@linux.intel.com>
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To: Karsten Hohmeier <karsten@hohmatik.de>, dri-devel@lists.freedesktop.org
Cc: Satendra Singh Thakur <satendra.t@samsung.com>, Madhur Verma <madhur.verma@samsung.com>, Hemanshu Srivastava <hemanshu.s@samsung.com>, Daniel Vetter <daniel.vetter@ffwll.ch>, Gustavo Padovan <gustavo@padovan.org>, Sean Paul <seanpaul@chromium.org>, David Airlie <airlied@linux.ie>, stable@vger.kernel.org
List-Id: dri-devel@lists.freedesktop.org

Op 05-09-18 om 00:26 schreef Karsten Hohmeier:
> Original commit causes "plane A assertion failure" on lid close/lid open
> with older HP Compaq 6720s laptops (Intel Mobile GME965/GLE960).
> Full bug report at "https://bugs.freedesktop.org/show_bug.cgi?id=107827".
> ---
>  drivers/gpu/drm/drm_atomic.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
> index 895741e9cd7d..a59ded403657 100644
> --- a/drivers/gpu/drm/drm_atomic.c
> +++ b/drivers/gpu/drm/drm_atomic.c
> @@ -1433,9 +1433,7 @@ drm_atomic_set_crtc_for_plane(struct
> drm_plane_state *plane_state,
>  {
>  	struct drm_plane *plane = plane_state->plane;
>  	struct drm_crtc_state *crtc_state;
> -	/* Nothing to do for same crtc*/
> -	if (plane_state->crtc == crtc)
> -		return 0;
> +
>  	if (plane_state->crtc) {
>  		crtc_state = drm_atomic_get_crtc_state(plane_state->state,
>  						       plane_state->crtc);
> --
> 2.11.0
>
>
This patch is missing a signed-off-by.

Can you add your signed-off-by, so we can apply this upstream?