drm/rcar-du: Use simple encoder

The rcar-du driver uses an empty implementation for its encoder. Replace
the code with the generic simple encoder.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305155950.2705-12-tzimmermann@suse.de

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c
index c07c6a8..b0335da 100644 (file)
--- a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c
@@ -13,6 +13,7 @@
 #include <drm/drm_crtc.h>
 #include <drm/drm_modeset_helper_vtables.h>
 #include <drm/drm_panel.h>
+#include <drm/drm_simple_kms_helper.h>
 
 #include "rcar_du_drv.h"
 #include "rcar_du_encoder.h"
@@ -23,13 +24,6 @@
  * Encoder
  */
 
-static const struct drm_encoder_helper_funcs encoder_helper_funcs = {
-};
-
-static const struct drm_encoder_funcs encoder_funcs = {
-       .destroy = drm_encoder_cleanup,
-};
-
 static unsigned int rcar_du_encoder_count_ports(struct device_node *node)
 {
        struct device_node *ports;
@@ -110,13 +104,11 @@ int rcar_du_encoder_init(struct rcar_du_device *rcdu,
                }
        }
 
-       ret = drm_encoder_init(rcdu->ddev, encoder, &encoder_funcs,
-                              DRM_MODE_ENCODER_NONE, NULL);
+       ret = drm_simple_encoder_init(rcdu->ddev, encoder,
+                                     DRM_MODE_ENCODER_NONE);
        if (ret < 0)
                goto done;
 
-       drm_encoder_helper_add(encoder, &encoder_helper_funcs);
-
        /*
         * Attach the bridge to the encoder. The bridge will create the
         * connector.