drm: Move drm_format_num_planes() to drm_crtc.c
There will be a need for this function in drm_crtc.c later. This
avoids making drm_crtc.c depend on drm_crtc_helper.c.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index e250eda..9dd3ed8 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -1026,4 +1026,6 @@
extern void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
int *bpp);
+extern int drm_format_num_planes(uint32_t format);
+
#endif /* __DRM_CRTC_H__ */