drm/armada: convert primary plane to atomic state

Convert the primary plane as a whole to use its atomic state and the
transitional helpers.  The CRTC is also switched to use the transitional
helpers for mode_set() and mode_set_base().
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>

drivers/gpu/drm/armada/armada_crtc.h

@@ -93,7 +93,6 @@ struct armada_crtc {
 	uint8_t			csc_rgb_mode;
 
 	struct drm_plane	*plane;
-	struct drm_framebuffer	*old_modeset_fb;
 
 	struct armada_gem_object	*cursor_obj;
 	int			cursor_x;
@@ -110,14 +109,15 @@ struct armada_crtc {
 
 	spinlock_t		irq_lock;
 	uint32_t		irq_ena;
+
+	struct armada_regs	atomic_regs[32];
+	struct armada_regs	*regs;
+	unsigned int		regs_idx;
 };
 #define drm_to_armada_crtc(c) container_of(c, struct armada_crtc, crtc)
 
 void armada_drm_crtc_update_regs(struct armada_crtc *, struct armada_regs *);
 
-int armada_drm_plane_disable(struct drm_plane *plane,
-			     struct drm_modeset_acquire_ctx *ctx);
-
 extern struct platform_driver armada_lcd_platform_driver;
 
 #endif