drm/exynos: simplify calculation of possible CRTCs

All CRTCs can only be LCD, HDMI or VIDI, so basically all CRTCs will be a
possible CRTCs. This patch removes an extra function with switch that was
only checking if the CRTC type was one of those three above.
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

drivers/gpu/drm/exynos/exynos_drm_encoder.c

@@ -105,36 +105,17 @@ static struct drm_encoder_funcs exynos_encoder_funcs = {
 	.destroy = exynos_drm_encoder_destroy,
 };
 
-static unsigned int exynos_drm_encoder_clones(struct drm_encoder *encoder)
+void exynos_drm_encoder_setup(struct drm_device *dev)
 {
-	struct drm_encoder *clone;
-	struct drm_device *dev = encoder->dev;
-	struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
-	struct exynos_drm_display *display = exynos_encoder->display;
+	struct drm_encoder *encoder;
 	unsigned int clone_mask = 0;
 	int cnt = 0;
 
-	list_for_each_entry(clone, &dev->mode_config.encoder_list, head) {
-		switch (display->type) {
-		case EXYNOS_DISPLAY_TYPE_LCD:
-		case EXYNOS_DISPLAY_TYPE_HDMI:
-		case EXYNOS_DISPLAY_TYPE_VIDI:
-			clone_mask |= (1 << (cnt++));
-			break;
-		default:
-			continue;
-		}
-	}
-
-	return clone_mask;
-}
-
-void exynos_drm_encoder_setup(struct drm_device *dev)
-{
-	struct drm_encoder *encoder;
+	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
+		clone_mask |= (1 << (cnt++));
 
 	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
-		encoder->possible_clones = exynos_drm_encoder_clones(encoder);
+		encoder->possible_clones = clone_mask;
 }
 
 struct drm_encoder *