drm/rcar-du: Rename platform data fields to match what they describe

The struct rcar_du_encoder_data encoder::field describes the encoder
type, and the rcar_du_encoder_lvds_data and rcar_du_encoder_vga_data
structures describe connector properties. Rename them accordingly.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

drivers/gpu/drm/rcar-du/rcar_du_encoder.c

@@ -137,7 +137,7 @@ int rcar_du_encoder_init(struct rcar_du_device *rcdu,
 	switch (type) {
 	case RCAR_DU_ENCODER_LVDS:
 		return rcar_du_lvds_connector_init(rcdu, renc,
-						   &data->u.lvds.panel);
+						   &data->connector.lvds.panel);
 
 	case RCAR_DU_ENCODER_VGA:
 		return rcar_du_vga_connector_init(rcdu, renc);

drivers/gpu/drm/rcar-du/rcar_du_encoder.h

@@ -14,10 +14,11 @@
 #ifndef __RCAR_DU_ENCODER_H__
 #define __RCAR_DU_ENCODER_H__
 
+#include <linux/platform_data/rcar-du.h>
+
 #include <drm/drm_crtc.h>
 
 struct rcar_du_device;
-struct rcar_du_encoder_data;
 
 struct rcar_du_encoder {
 	struct drm_encoder encoder;

drivers/gpu/drm/rcar-du/rcar_du_kms.c

@@ -191,7 +191,7 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu)
 		const struct rcar_du_encoder_data *pdata =
 			&rcdu->pdata->encoders[i];
 
-		if (pdata->encoder == RCAR_DU_ENCODER_UNUSED)
+		if (pdata->type == RCAR_DU_ENCODER_UNUSED)
 			continue;
 
 		if (pdata->output >= ARRAY_SIZE(rcdu->crtcs)) {
@@ -201,8 +201,7 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu)
 			continue;
 		}
 
-		rcar_du_encoder_init(rcdu, pdata->encoder, pdata->output,
-				     pdata);
+		rcar_du_encoder_init(rcdu, pdata->type, pdata->output, pdata);
 	}
 
 	/* Set the possible CRTCs and possible clones. All encoders can be

include/linux/platform_data/rcar-du.h

@@ -28,22 +28,29 @@ struct rcar_du_panel_data {
 	struct drm_mode_modeinfo mode;
 };
 
-struct rcar_du_encoder_lvds_data {
+struct rcar_du_connector_lvds_data {
 	struct rcar_du_panel_data panel;
 };
 
-struct rcar_du_encoder_vga_data {
+struct rcar_du_connector_vga_data {
 	/* TODO: Add DDC information for EDID retrieval */
 };
 
+/*
+ * struct rcar_du_encoder_data - Encoder platform data
+ * @type: the encoder type (RCAR_DU_ENCODER_*)
+ * @output: the DU output the connector is connected to
+ * @connector.lvds: platform data for LVDS connectors
+ * @connector.vga: platform data for VGA connectors
+ */
 struct rcar_du_encoder_data {
-	enum rcar_du_encoder_type encoder;
+	enum rcar_du_encoder_type type;
 	unsigned int output;
 
 	union {
-		struct rcar_du_encoder_lvds_data lvds;
-		struct rcar_du_encoder_vga_data vga;
-	} u;
+		struct rcar_du_connector_lvds_data lvds;
+		struct rcar_du_connector_vga_data vga;
+	} connector;
 };
 
 struct rcar_du_platform_data {