X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;ds=sidebyside;f=drivers%2Fgpu%2Fdrm%2Fexynos%2Fexynos_drm_crtc.c;h=8f5ac535d8098137642afffec532b27d8eecbb57;hb=6d82179b6f6109ca609b49c470bb9c585ca697f0;hp=b3ba27fd9a6bc880d7e061039e61ca42babc148f;hpb=923f1cbf2e45f6292a01de959031a8efeabede78;p=firefly-linux-kernel-4.4.55.git

diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
index b3ba27fd9a6b..8f5ac535d809 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
@@ -55,6 +55,9 @@ static int exynos_crtc_atomic_check(struct drm_crtc *crtc,
 {
 	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
 
+	if (!state->enable)
+		return 0;
+
 	if (exynos_crtc->ops->atomic_check)
 		return exynos_crtc->ops->atomic_check(exynos_crtc, state);
 
@@ -93,7 +96,7 @@ static void exynos_crtc_atomic_flush(struct drm_crtc *crtc,
 	}
 }
 
-static struct drm_crtc_helper_funcs exynos_crtc_helper_funcs = {
+static const struct drm_crtc_helper_funcs exynos_crtc_helper_funcs = {
 	.enable		= exynos_drm_crtc_enable,
 	.disable	= exynos_drm_crtc_disable,
 	.mode_set_nofb	= exynos_drm_crtc_mode_set_nofb,
@@ -113,7 +116,7 @@ static void exynos_drm_crtc_destroy(struct drm_crtc *crtc)
 	kfree(exynos_crtc);
 }
 
-static struct drm_crtc_funcs exynos_crtc_funcs = {
+static const struct drm_crtc_funcs exynos_crtc_funcs = {
 	.set_config	= drm_atomic_helper_set_config,
 	.page_flip	= drm_atomic_helper_page_flip,
 	.destroy	= exynos_drm_crtc_destroy,
@@ -150,7 +153,7 @@ struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev,
 	private->crtc[pipe] = crtc;
 
 	ret = drm_crtc_init_with_planes(drm_dev, crtc, plane, NULL,
-					&exynos_crtc_funcs);
+					&exynos_crtc_funcs, NULL);
 	if (ret < 0)
 		goto err_crtc;