linux-kernel - [PATCH 1/3] drm/exynos: drm_plane: Correct exynos_drm_plane

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Message-Id: <20180921122612eucas1p2f3e0b6cf2e15553bd4d7114722c2a217~WaeklfEj21399713997eucas1p2a@eucas1p2.samsung.com>
Date:   Fri, 21 Sep 2018 14:24:36 +0200
From:   Christoph Manszewski <c.manszewski@...sung.com>
To:     dri-devel@...ts.freedesktop.org
Cc:     Christoph Manszewski <c.manszewski@...sung.com>,
        Inki Dae <inki.dae@...sung.com>,
        Joonyoung Shim <jy0922.shim@...sung.com>,
        Seung-Woo Kim <sw0312.kim@...sung.com>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        David Airlie <airlied@...ux.ie>, Kukjin Kim <kgene@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Andrzej Hajda <a.hajda@...sung.com>
Subject: [PATCH 1/3] drm/exynos: drm_plane: Correct exynos_drm_plane_reset

Make use of helper functions in exynos_drm_plane_reset in order to set
all default values. Currently alpha isn't set during reset.

Signed-off-by: Christoph Manszewski <c.manszewski@...sung.com>
---
 drivers/gpu/drm/exynos/exynos_drm_plane.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_plane.c b/drivers/gpu/drm/exynos/exynos_drm_plane.c
index dba29aec59b4..755ca0e9ead2 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_plane.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_plane.c
@@ -131,16 +131,14 @@ static void exynos_drm_plane_reset(struct drm_plane *plane)
 
 	if (plane->state) {
 		exynos_state = to_exynos_plane_state(plane->state);
-		if (exynos_state->base.fb)
-			drm_framebuffer_put(exynos_state->base.fb);
+		__drm_atomic_helper_plane_destroy_state(plane->state);
 		kfree(exynos_state);
 		plane->state = NULL;
 	}
 
 	exynos_state = kzalloc(sizeof(*exynos_state), GFP_KERNEL);
 	if (exynos_state) {
-		plane->state = &exynos_state->base;
-		plane->state->plane = plane;
+		__drm_atomic_helper_plane_reset(plane, &exynos_state->base);
 		plane->state->zpos = exynos_plane->config->zpos;
 	}
 }
-- 
2.7.4