From: Fabien Dessenne <fabien.dessenne@st.com>
Date: Tue, 6 Sep 2016 07:42:39 +0000 (+0200)
Subject: drm/sti: in crtc_atomic_flush, enable only planes of this crtc
X-Git-Tag: v4.9.8~1110^2~21^2~3
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3bc6b01de30538f836632a1a701c0061e711b38c;p=platform%2Fkernel%2Flinux-rpi3.git

drm/sti: in crtc_atomic_flush, enable only planes of this crtc

crtc_atomic_flush performs some additional processing, like plane
enable at mixer level.
Enable only the planes attached to the CRTC.

Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Acked-by: Vincent Abriou <vincent.abriou@st.com>
---

diff --git a/drivers/gpu/drm/sti/sti_crtc.c b/drivers/gpu/drm/sti/sti_crtc.c
index 96afe68..bc1b186 100644
--- a/drivers/gpu/drm/sti/sti_crtc.c
+++ b/drivers/gpu/drm/sti/sti_crtc.c
@@ -165,6 +165,10 @@ static void sti_crtc_atomic_flush(struct drm_crtc *crtc,
 
 		switch (plane->status) {
 		case STI_PLANE_UPDATED:
+			/* ignore update for other CRTC */
+			if (p->state->crtc != crtc)
+				continue;
+
 			/* update planes tag as updated */
 			DRM_DEBUG_DRIVER("update plane %s\n",
 					 sti_plane_to_str(plane));