drm: Add drm_crtc_init_with_planes() (v2)
Add a new drm_crtc_init_with_planes() to allow drivers to provide
specific primary and cursor planes at CRTC initialization. The existing
drm_crtc_init() interface remains to avoid driver churn in existing
drivers; it will initialize the CRTC with a plane helper-created primary
plane and no cursor plane.
v2:
- Move drm_crtc_init() to plane helper file so that nothing in the DRM
core depends on helpers. [suggested by Daniel Vetter]
- Keep cursor parameter to drm_crtc_init_with_planes() a void* until
we actually add cursor support. [suggested by Daniel Vetter]
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 4c4f792..46790c0 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -270,6 +270,8 @@
* @dev: parent DRM device
* @head: list management
* @base: base KMS object for ID tracking etc.
+ * @primary: primary plane for this CRTC
+ * @cursor: cursor plane for this CRTC
* @enabled: is this CRTC enabled?
* @mode: current mode timings
* @hwmode: mode timings as programmed to hw regs
@@ -305,6 +307,10 @@
struct drm_mode_object base;
+ /* primary and cursor planes for CRTC */
+ struct drm_plane *primary;
+ struct drm_plane *cursor;
+
/* framebuffer the connector is currently bound to */
struct drm_framebuffer *fb;
@@ -824,6 +830,11 @@
extern void drm_modeset_unlock_all(struct drm_device *dev);
extern void drm_warn_on_modeset_not_all_locked(struct drm_device *dev);
+extern int drm_crtc_init_with_planes(struct drm_device *dev,
+ struct drm_crtc *crtc,
+ struct drm_plane *primary,
+ void *cursor,
+ const struct drm_crtc_funcs *funcs);
extern int drm_crtc_init(struct drm_device *dev,
struct drm_crtc *crtc,
const struct drm_crtc_funcs *funcs);