linux-kernel - [PATCH 5.3 013/166] drm/stm: attach gem fence to atomic state

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Message-Id: <20191006171213.668040977@linuxfoundation.org>
Date:   Sun,  6 Oct 2019 19:19:39 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Ahmad Fatoum <a.fatoum@...gutronix.de>,
        Lucas Stach <l.stach@...gutronix.de>,
        Philippe Cornu <philippe.cornu@...com>,
        Benjamin Gaignard <benjamin.gaignard@...aro.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.3 013/166] drm/stm: attach gem fence to atomic state

From: Ahmad Fatoum <a.fatoum@...gutronix.de>

[ Upstream commit 8fabc9c3109a71b3577959a05408153ae69ccd8d ]

To properly synchronize with other devices the fence from the GEM
object backing the framebuffer needs to be attached to the atomic
state, so the commit work can wait on fence signaling.

Signed-off-by: Ahmad Fatoum <a.fatoum@...gutronix.de>
Signed-off-by: Lucas Stach <l.stach@...gutronix.de>
Acked-by: Philippe Cornu <philippe.cornu@...com>
Tested-by: Philippe Cornu <philippe.cornu@...com>
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...aro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190712084228.8338-1-l.stach@pengutronix.de
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/stm/ltdc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c
index 2fe6c4a8d9155..3ab4fbf8eb0d1 100644
--- a/drivers/gpu/drm/stm/ltdc.c
+++ b/drivers/gpu/drm/stm/ltdc.c
@@ -26,6 +26,7 @@
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_fourcc.h>
 #include <drm/drm_gem_cma_helper.h>
+#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_of.h>
 #include <drm/drm_plane_helper.h>
 #include <drm/drm_probe_helper.h>
@@ -922,6 +923,7 @@ static const struct drm_plane_funcs ltdc_plane_funcs = {
 };
 
 static const struct drm_plane_helper_funcs ltdc_plane_helper_funcs = {
+	.prepare_fb = drm_gem_fb_prepare_fb,
 	.atomic_check = ltdc_plane_atomic_check,
 	.atomic_update = ltdc_plane_atomic_update,
 	.atomic_disable = ltdc_plane_atomic_disable,
-- 
2.20.1