+static void exynos_dp_bridge_nop(struct drm_bridge *bridge)
+{
+ /* do nothing */
+}
+
+static const struct drm_bridge_funcs exynos_dp_bridge_funcs = {
+ .enable = exynos_dp_bridge_enable,
+ .disable = exynos_dp_bridge_disable,
+ .pre_enable = exynos_dp_bridge_nop,
+ .post_disable = exynos_dp_bridge_nop,
+ .attach = exynos_dp_bridge_attach,
+};
+
+static int exynos_dp_create_connector(struct drm_encoder *encoder)
+{
+ struct exynos_dp_device *dp = encoder_to_dp(encoder);
+ struct drm_device *drm_dev = dp->drm_dev;
+ struct drm_bridge *bridge;
+ int ret;
+
+ bridge = devm_kzalloc(drm_dev->dev, sizeof(*bridge), GFP_KERNEL);
+ if (!bridge) {
+ DRM_ERROR("failed to allocate for drm bridge\n");
+ return -ENOMEM;
+ }
+
+ dp->bridge = bridge;
+
+ encoder->bridge = bridge;
+ bridge->driver_private = dp;
+ bridge->encoder = encoder;
+ bridge->funcs = &exynos_dp_bridge_funcs;
+
+ ret = drm_bridge_attach(drm_dev, bridge);
+ if (ret) {
+ DRM_ERROR("failed to attach drm bridge\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static bool exynos_dp_mode_fixup(struct drm_encoder *encoder,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ return true;
+}
+
+static void exynos_dp_mode_set(struct drm_encoder *encoder,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+}
+
+static void exynos_dp_enable(struct drm_encoder *encoder)
+{
+}
+
+static void exynos_dp_disable(struct drm_encoder *encoder)
+{
+}
+