drm/i915/bxt: Pass drm_i915_private to DDI PHY, CDCLK helpers

For internal APIs passing dev_priv is preferred to reduce indirections,
so convert over a few DDI PHY, CDCLK helpers.

No functional change.
Signed-off-by: Imre Deak <imre.deak@intel.com>
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: David Weinehall <david.weinehall@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1459515767-29228-10-git-send-email-imre.deak@intel.com

drivers/gpu/drm/i915/i915_drv.c

@@ -1080,12 +1080,10 @@ static int hsw_suspend_complete(struct drm_i915_private *dev_priv)
 
 static int bxt_suspend_complete(struct drm_i915_private *dev_priv)
 {
-	struct drm_device *dev = dev_priv->dev;
-
 	/* TODO: when DC5 support is added disable DC5 here. */
 
-	broxton_ddi_phy_uninit(dev);
-	broxton_uninit_cdclk(dev);
+	broxton_ddi_phy_uninit(dev_priv);
+	broxton_uninit_cdclk(dev_priv);
 	bxt_enable_dc9(dev_priv);
 
 	return 0;
@@ -1093,8 +1091,6 @@ static int bxt_suspend_complete(struct drm_i915_private *dev_priv)
 
 static int bxt_resume_prepare(struct drm_i915_private *dev_priv)
 {
-	struct drm_device *dev = dev_priv->dev;
-
 	/* TODO: when CSR FW support is added make sure the FW is loaded */
 
 	bxt_disable_dc9(dev_priv);
@@ -1103,8 +1099,8 @@ static int bxt_resume_prepare(struct drm_i915_private *dev_priv)
 	 * TODO: when DC5 support is added enable DC5 here if the CSR FW
 	 * is available.
 	 */
-	broxton_init_cdclk(dev);
-	broxton_ddi_phy_init(dev);
+	broxton_init_cdclk(dev_priv);
+	broxton_ddi_phy_init(dev_priv);
 
 	return 0;
 }

drivers/gpu/drm/i915/intel_ddi.c

@@ -1834,11 +1834,11 @@ static void broxton_phy_init(struct drm_i915_private *dev_priv,
 	I915_WRITE(BXT_PHY_CTL_FAMILY(phy), val);
 }
 
-void broxton_ddi_phy_init(struct drm_device *dev)
+void broxton_ddi_phy_init(struct drm_i915_private *dev_priv)
 {
 	/* Enable PHY1 first since it provides Rcomp for PHY0 */
-	broxton_phy_init(dev->dev_private, DPIO_PHY1);
-	broxton_phy_init(dev->dev_private, DPIO_PHY0);
+	broxton_phy_init(dev_priv, DPIO_PHY1);
+	broxton_phy_init(dev_priv, DPIO_PHY0);
 }
 
 static void broxton_phy_uninit(struct drm_i915_private *dev_priv,
@@ -1851,10 +1851,8 @@ static void broxton_phy_uninit(struct drm_i915_private *dev_priv,
 	I915_WRITE(BXT_PHY_CTL_FAMILY(phy), val);
 }
 
-void broxton_ddi_phy_uninit(struct drm_device *dev)
+void broxton_ddi_phy_uninit(struct drm_i915_private *dev_priv)
 {
-	struct drm_i915_private *dev_priv = dev->dev_private;
-
 	broxton_phy_uninit(dev_priv, DPIO_PHY1);
 	broxton_phy_uninit(dev_priv, DPIO_PHY0);
 

drivers/gpu/drm/i915/intel_display.c

@@ -5328,9 +5328,8 @@ static void intel_update_cdclk(struct drm_device *dev)
 		intel_update_max_cdclk(dev);
 }
 
-static void broxton_set_cdclk(struct drm_device *dev, int frequency)
+static void broxton_set_cdclk(struct drm_i915_private *dev_priv, int frequency)
 {
-	struct drm_i915_private *dev_priv = dev->dev_private;
 	uint32_t divider;
 	uint32_t ratio;
 	uint32_t current_freq;
@@ -5444,12 +5443,11 @@ static void broxton_set_cdclk(struct drm_device *dev, int frequency)
 		return;
 	}
 
-	intel_update_cdclk(dev);
+	intel_update_cdclk(dev_priv->dev);
 }
 
-void broxton_init_cdclk(struct drm_device *dev)
+void broxton_init_cdclk(struct drm_i915_private *dev_priv)
 {
-	struct drm_i915_private *dev_priv = dev->dev_private;
 	uint32_t val;
 
 	/*
@@ -5478,7 +5476,7 @@ void broxton_init_cdclk(struct drm_device *dev)
 	 * - check if setting the max (or any) cdclk freq is really necessary
 	 *   here, it belongs to modeset time
 	 */
-	broxton_set_cdclk(dev, 624000);
+	broxton_set_cdclk(dev_priv, 624000);
 
 	I915_WRITE(DBUF_CTL, I915_READ(DBUF_CTL) | DBUF_POWER_REQUEST);
 	POSTING_READ(DBUF_CTL);
@@ -5489,10 +5487,8 @@ void broxton_init_cdclk(struct drm_device *dev)
 		DRM_ERROR("DBuf power enable timeout!\n");
 }
 
-void broxton_uninit_cdclk(struct drm_device *dev)
+void broxton_uninit_cdclk(struct drm_i915_private *dev_priv)
 {
-	struct drm_i915_private *dev_priv = dev->dev_private;
-
 	I915_WRITE(DBUF_CTL, I915_READ(DBUF_CTL) & ~DBUF_POWER_REQUEST);
 	POSTING_READ(DBUF_CTL);
 
@@ -5502,7 +5498,7 @@ void broxton_uninit_cdclk(struct drm_device *dev)
 		DRM_ERROR("DBuf power disable timeout!\n");
 
 	/* Set minimum (bypass) frequency, in effect turning off the DE PLL */
-	broxton_set_cdclk(dev, 19200);
+	broxton_set_cdclk(dev_priv, 19200);
 
 	intel_display_power_put(dev_priv, POWER_DOMAIN_PLLS);
 }
@@ -9536,7 +9532,7 @@ static void broxton_modeset_commit_cdclk(struct drm_atomic_state *old_state)
 		to_intel_atomic_state(old_state);
 	unsigned int req_cdclk = old_intel_state->dev_cdclk;
 
-	broxton_set_cdclk(dev, req_cdclk);
+	broxton_set_cdclk(to_i915(dev), req_cdclk);
 }
 
 /* compute the max rate for new configuration */

drivers/gpu/drm/i915/intel_dpll_mgr.c

@@ -1653,8 +1653,8 @@ static void intel_ddi_pll_init(struct drm_device *dev)
 		if (!(I915_READ(LCPLL1_CTL) & LCPLL_PLL_ENABLE))
 			DRM_ERROR("LCPLL1 is disabled\n");
 	} else if (IS_BROXTON(dev)) {
-		broxton_init_cdclk(dev);
-		broxton_ddi_phy_init(dev);
+		broxton_init_cdclk(dev_priv);
+		broxton_ddi_phy_init(dev_priv);
 	} else {
 		/*
 		 * The LCPLL register should be turned on by the BIOS. For now

drivers/gpu/drm/i915/intel_drv.h

@@ -1224,10 +1224,10 @@ void intel_prepare_reset(struct drm_device *dev);
 void intel_finish_reset(struct drm_device *dev);
 void hsw_enable_pc8(struct drm_i915_private *dev_priv);
 void hsw_disable_pc8(struct drm_i915_private *dev_priv);
-void broxton_init_cdclk(struct drm_device *dev);
-void broxton_uninit_cdclk(struct drm_device *dev);
-void broxton_ddi_phy_init(struct drm_device *dev);
-void broxton_ddi_phy_uninit(struct drm_device *dev);
+void broxton_init_cdclk(struct drm_i915_private *dev_priv);
+void broxton_uninit_cdclk(struct drm_i915_private *dev_priv);
+void broxton_ddi_phy_init(struct drm_i915_private *dev_priv);
+void broxton_ddi_phy_uninit(struct drm_i915_private *dev_priv);
 void bxt_enable_dc9(struct drm_i915_private *dev_priv);
 void bxt_disable_dc9(struct drm_i915_private *dev_priv);
 void skl_init_cdclk(struct drm_i915_private *dev_priv);