drm/bridge: Add PTN3460 bridge driver

This patch adds a drm_bridge driver for the PTN3460 DisplayPort to LVDS
bridge chip.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index 292a79d..5e792b0 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -63,3 +63,4 @@
 obj-$(CONFIG_DRM_TEGRA) += tegra/
 obj-y			+= i2c/
 obj-y			+= panel/
+obj-y			+= bridge/