drm/exynos: Remove redundant use of of_match_ptr macro

'mixer_match_types' is always compiled in. Hence of_match_ptr is not
necessary.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
index 3658e07..de5c735 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -1186,8 +1186,7 @@
 
 	if (dev->of_node) {
 		const struct of_device_id *match;
-		match = of_match_node(of_match_ptr(mixer_match_types),
-							  dev->of_node);
+		match = of_match_node(mixer_match_types, dev->of_node);
 		drv = (struct mixer_drv_data *)match->data;
 	} else {
 		drv = (struct mixer_drv_data *)