drm/vc4: crtc: Make state functions public

We'll need the CRTC state related functions to be exported so that we can
reuse them for the TXP.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/658f40aa01d7a45cbf6feebfc3dc6549f100d110.1591882579.git-series.maxime@cerno.tech

drivers/gpu/drm/vc4/vc4_crtc.c

@@ -184,7 +184,7 @@ static bool vc4_crtc_get_scanout_position(struct drm_crtc *crtc,
 	return ret;
 }
 
-static void vc4_crtc_destroy(struct drm_crtc *crtc)
+void vc4_crtc_destroy(struct drm_crtc *crtc)
 {
 	drm_crtc_cleanup(crtc);
 }
@@ -697,11 +697,11 @@ static int vc4_async_page_flip(struct drm_crtc *crtc,
 	return 0;
 }
 
-static int vc4_page_flip(struct drm_crtc *crtc,
-			 struct drm_framebuffer *fb,
-			 struct drm_pending_vblank_event *event,
-			 uint32_t flags,
-			 struct drm_modeset_acquire_ctx *ctx)
+int vc4_page_flip(struct drm_crtc *crtc,
+		  struct drm_framebuffer *fb,
+		  struct drm_pending_vblank_event *event,
+		  uint32_t flags,
+		  struct drm_modeset_acquire_ctx *ctx)
 {
 	if (flags & DRM_MODE_PAGE_FLIP_ASYNC)
 		return vc4_async_page_flip(crtc, fb, event, flags);
@@ -709,7 +709,7 @@ static int vc4_page_flip(struct drm_crtc *crtc,
 		return drm_atomic_helper_page_flip(crtc, fb, event, flags, ctx);
 }
 
-static struct drm_crtc_state *vc4_crtc_duplicate_state(struct drm_crtc *crtc)
+struct drm_crtc_state *vc4_crtc_duplicate_state(struct drm_crtc *crtc)
 {
 	struct vc4_crtc_state *vc4_state, *old_vc4_state;
 
@@ -725,8 +725,8 @@ static struct drm_crtc_state *vc4_crtc_duplicate_state(struct drm_crtc *crtc)
 	return &vc4_state->base;
 }
 
-static void vc4_crtc_destroy_state(struct drm_crtc *crtc,
-				   struct drm_crtc_state *state)
+void vc4_crtc_destroy_state(struct drm_crtc *crtc,
+			    struct drm_crtc_state *state)
 {
 	struct vc4_dev *vc4 = to_vc4_dev(crtc->dev);
 	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(state);
@@ -743,8 +743,7 @@ static void vc4_crtc_destroy_state(struct drm_crtc *crtc,
 	drm_atomic_helper_crtc_destroy_state(crtc, state);
 }
 
-static void
-vc4_crtc_reset(struct drm_crtc *crtc)
+void vc4_crtc_reset(struct drm_crtc *crtc)
 {
 	if (crtc->state)
 		vc4_crtc_destroy_state(crtc, crtc->state);

drivers/gpu/drm/vc4/vc4_drv.h

@@ -775,6 +775,16 @@ void vc4_bo_remove_from_purgeable_pool(struct vc4_bo *bo);
 
 /* vc4_crtc.c */
 extern struct platform_driver vc4_crtc_driver;
+void vc4_crtc_destroy(struct drm_crtc *crtc);
+int vc4_page_flip(struct drm_crtc *crtc,
+		  struct drm_framebuffer *fb,
+		  struct drm_pending_vblank_event *event,
+		  uint32_t flags,
+		  struct drm_modeset_acquire_ctx *ctx);
+struct drm_crtc_state *vc4_crtc_duplicate_state(struct drm_crtc *crtc);
+void vc4_crtc_destroy_state(struct drm_crtc *crtc,
+			    struct drm_crtc_state *state);
+void vc4_crtc_reset(struct drm_crtc *crtc);
 void vc4_crtc_handle_vblank(struct vc4_crtc *crtc);
 void vc4_crtc_txp_armed(struct drm_crtc_state *state);
 void vc4_crtc_get_margins(struct drm_crtc_state *state,