[PATCH] drm: check that planes types are correct while initializing CRTC

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Be warned if primary or cursor planes haven't the correct type

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

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;
-- 
1.9.1

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