drm/gma500/cdv: Add and hook up chip op for disabling sr

Add a callback hook to the chip ops struct to allow chips to have their
specific self-refresh function. Currently only used by cdv.
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>

drivers/gpu/drm/gma500/cdv_device.c

@@ -657,4 +657,5 @@ const struct psb_ops cdv_chip_ops = {
 	.power_down = cdv_power_down,
 	.power_up = cdv_power_up,
 	.update_wm = cdv_update_wm,
+	.disable_sr = cdv_disable_sr,
 };

drivers/gpu/drm/gma500/cdv_device.h

@@ -27,3 +27,4 @@ extern void cdv_hdmi_init(struct drm_device *dev, struct psb_intel_mode_device *
 extern struct drm_display_mode *cdv_intel_crtc_mode_get(struct drm_device *dev,
 					     struct drm_crtc *crtc);
 extern void cdv_update_wm(struct drm_device *dev, struct drm_crtc *crtc);
+extern void cdv_disable_sr(struct drm_device *dev);

drivers/gpu/drm/gma500/cdv_intel_display.c

@@ -511,7 +511,7 @@ static bool is_pipeb_lvds(struct drm_device *dev, struct drm_crtc *crtc)
 	return false;
 }
 
-void cdv_intel_disable_self_refresh(struct drm_device *dev)
+void cdv_disable_sr(struct drm_device *dev)
 {
 	if (REG_READ(FW_BLC_SELF) & FW_BLC_SELF_EN) {
 
@@ -534,6 +534,7 @@ void cdv_intel_disable_self_refresh(struct drm_device *dev)
 
 void cdv_update_wm(struct drm_device *dev, struct drm_crtc *crtc)
 {
+	struct drm_psb_private *dev_priv = dev->dev_private;
 
 	if (cdv_intel_single_pipe_active(dev)) {
 		u32 fw;
@@ -587,8 +588,7 @@ void cdv_update_wm(struct drm_device *dev, struct drm_crtc *crtc)
 
 		gma_wait_for_vblank(dev);
 
-		cdv_intel_disable_self_refresh(dev);
-	
+		dev_priv->ops->disable_sr(dev);
 	}
 }
 

drivers/gpu/drm/gma500/gma_display.c

@@ -211,7 +211,7 @@ void gma_crtc_dpms(struct drm_crtc *crtc, int mode)
 	 */
 
 	if (IS_CDV(dev))
-		cdv_intel_disable_self_refresh(dev);
+		dev_priv->ops->disable_sr(dev);
 
 	switch (mode) {
 	case DRM_MODE_DPMS_ON:

drivers/gpu/drm/gma500/gma_display.h

@@ -100,7 +100,4 @@ extern bool gma_pll_is_valid(struct drm_crtc *crtc,
 extern bool gma_find_best_pll(const struct gma_limit_t *limit,
 			      struct drm_crtc *crtc, int target, int refclk,
 			      struct gma_clock_t *best_clock);
-
-/* Cedarview specific functions */
-extern void cdv_intel_disable_self_refresh(struct drm_device *dev);
 #endif

drivers/gpu/drm/gma500/psb_drv.h

@@ -696,6 +696,7 @@ struct psb_ops {
 	int (*power_up)(struct drm_device *dev);
 	int (*power_down)(struct drm_device *dev);
 	void (*update_wm)(struct drm_device *dev, struct drm_crtc *crtc);
+	void (*disable_sr)(struct drm_device *dev);
 
 	void (*lvds_bl_power)(struct drm_device *dev, bool on);
 #ifdef CONFIG_BACKLIGHT_CLASS_DEVICE