drm: check that planes types are correct while initializing CRTC

Message ID 1426590329-27983-1-git-send-email-benjamin.gaignard@linaro.org
State Accepted
Commit 522cf91f30cb0102fd5cb6e8979d45b6151cdcfc
Headers show

Commit Message

Benjamin Gaignard March 17, 2015, 11:05 a.m.
Be warned if primary or cursor planes haven't the correct type

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
---
 drivers/gpu/drm/drm_crtc.c | 3 +++
 1 file changed, 3 insertions(+)

Patch

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 5785336..111849c4 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -659,6 +659,9 @@  int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc,
 	struct drm_mode_config *config = &dev->mode_config;
 	int ret;
 
+	WARN_ON(primary && primary->type != DRM_PLANE_TYPE_PRIMARY);
+	WARN_ON(cursor && cursor->type != DRM_PLANE_TYPE_CURSOR);
+
 	crtc->dev = dev;
 	crtc->funcs = funcs;
 	crtc->invert_dimensions = false;