[PATCH 2/3] drm/exynos: reset temporary value after write to register

[Gustavo Padovan]

From: Gustavo Padovan <gustavo.padovan at collabora.co.uk>

'val' wasn't clean after its last usage, so we could get garbage value and
send the wrong command to the hw.

Signed-off-by: Gustavo Padovan <gustavo.padovan at collabora.co.uk>
---
 drivers/gpu/drm/exynos/exynos_mixer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
index a95fe84..7aff88f 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -687,7 +687,7 @@ static void mixer_win_reset(struct mixer_context *ctx)
 	mixer_reg_write(res, MXR_GRAPHIC_CFG(0), val);
 
 	/* Blend layer 1 into layer 0 */
-	val |= MXR_GRP_CFG_BLEND_PRE_MUL;
+	val = MXR_GRP_CFG_BLEND_PRE_MUL;
 	val |= MXR_GRP_CFG_PIXEL_BLEND_EN;
 	mixer_reg_write(res, MXR_GRAPHIC_CFG(1), val);
 
-- 
2.1.0