gma500/cdv: sync up and add the displayport code to the build

This is mostly just aligning bits of behaviour
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

drivers/gpu/drm/gma500/Makefile

@@ -30,7 +30,8 @@ gma500_gfx-$(CONFIG_DRM_GMA3600) +=  cdv_device.o \
 	  cdv_intel_crt.o \
 	  cdv_intel_display.o \
 	  cdv_intel_hdmi.o \
-	  cdv_intel_lvds.o
+	  cdv_intel_lvds.o \
+	  cdv_intel_dp.o
 
 gma500_gfx-$(CONFIG_DRM_GMA600) += oaktrail_device.o \
 	  oaktrail_crtc.o \

drivers/gpu/drm/gma500/cdv_intel_display.c

@@ -171,7 +171,7 @@ static const struct cdv_intel_limit_t cdv_intel_limits[] = {
 #define wait_for(COND, MS) _wait_for(COND, MS, 1)
 
 
-static int cdv_sb_read(struct drm_device *dev, u32 reg, u32 *val)
+int cdv_sb_read(struct drm_device *dev, u32 reg, u32 *val)
 {
 	int ret;
 
@@ -198,7 +198,7 @@ static int cdv_sb_read(struct drm_device *dev, u32 reg, u32 *val)
 	return 0;
 }
 
-static int cdv_sb_write(struct drm_device *dev, u32 reg, u32 val)
+int cdv_sb_write(struct drm_device *dev, u32 reg, u32 val)
 {
 	int ret;
 	static bool dpio_debug = true;
@@ -240,7 +240,7 @@ static int cdv_sb_write(struct drm_device *dev, u32 reg, u32 val)
 /* Reset the DPIO configuration register.  The BIOS does this at every
  * mode set.
  */
-static void cdv_sb_reset(struct drm_device *dev)
+void cdv_sb_reset(struct drm_device *dev)
 {
 
 	REG_WRITE(DPIO_CFG, 0);

drivers/gpu/drm/gma500/psb_intel_drv.h

@@ -288,4 +288,20 @@ extern void gma_intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
 extern void gma_intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
 extern void gma_intel_teardown_gmbus(struct drm_device *dev);
 
+/* DP support */
+extern void cdv_intel_dp_init(struct drm_device *dev, struct psb_intel_mode_device *mode_dev, int output_reg);
+extern void psb_intel_dp_set_m_n(struct drm_crtc *crtc,
+					struct drm_display_mode *mode,
+					struct drm_display_mode *adjusted_mode);
+
+extern void psb_intel_attach_force_audio_property(struct drm_connector *connector);
+extern void psb_intel_attach_broadcast_rgb_property(struct drm_connector *connector);
+
+extern int cdv_sb_read(struct drm_device *dev, u32 reg, u32 *val);
+extern int cdv_sb_write(struct drm_device *dev, u32 reg, u32 val);
+extern void cdv_sb_reset(struct drm_device *dev);
+
+extern void cdv_intel_attach_force_audio_property(struct drm_connector *connector);
+extern void cdv_intel_attach_broadcast_rgb_property(struct drm_connector *connector);
+
 #endif				/* __INTEL_DRV_H__ */