drm/i915: move pch_ssc_use to display sub-struct under dpll

Move the display related member to the struct drm_i915_private display
sub-struct.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230117143946.2426043-2-jani.nikula@intel.com

drivers/gpu/drm/i915/display/intel_display_core.h

@@ -122,6 +122,11 @@ struct intel_dpll {
 		int nssc;
 		int ssc;
 	} ref_clks;
+
+	/*
+	 * Bitmask of PLLs using the PCH SSC, indexed using enum intel_dpll_id.
+	 */
+	u8 pch_ssc_use;
 };
 
 struct intel_frontbuffer_tracking {

drivers/gpu/drm/i915/display/intel_dpll_mgr.c

@@ -618,7 +618,7 @@ static void hsw_ddi_wrpll_disable(struct drm_i915_private *dev_priv,
 	 * Try to set up the PCH reference clock once all DPLLs
 	 * that depend on it have been shut down.
 	 */
-	if (dev_priv->pch_ssc_use & BIT(id))
+	if (dev_priv->display.dpll.pch_ssc_use & BIT(id))
 		intel_init_pch_refclk(dev_priv);
 }
 
@@ -636,7 +636,7 @@ static void hsw_ddi_spll_disable(struct drm_i915_private *dev_priv,
 	 * Try to set up the PCH reference clock once all DPLLs
 	 * that depend on it have been shut down.
 	 */
-	if (dev_priv->pch_ssc_use & BIT(id))
+	if (dev_priv->display.dpll.pch_ssc_use & BIT(id))
 		intel_init_pch_refclk(dev_priv);
 }
 

drivers/gpu/drm/i915/display/intel_pch_refclk.c

@@ -467,24 +467,24 @@ static void lpt_init_pch_refclk(struct drm_i915_private *dev_priv)
 	 * clock hierarchy. That would also allow us to do
 	 * clock bending finally.
 	 */
-	dev_priv->pch_ssc_use = 0;
+	dev_priv->display.dpll.pch_ssc_use = 0;
 
 	if (spll_uses_pch_ssc(dev_priv)) {
 		drm_dbg_kms(&dev_priv->drm, "SPLL using PCH SSC\n");
-		dev_priv->pch_ssc_use |= BIT(DPLL_ID_SPLL);
+		dev_priv->display.dpll.pch_ssc_use |= BIT(DPLL_ID_SPLL);
 	}
 
 	if (wrpll_uses_pch_ssc(dev_priv, DPLL_ID_WRPLL1)) {
 		drm_dbg_kms(&dev_priv->drm, "WRPLL1 using PCH SSC\n");
-		dev_priv->pch_ssc_use |= BIT(DPLL_ID_WRPLL1);
+		dev_priv->display.dpll.pch_ssc_use |= BIT(DPLL_ID_WRPLL1);
 	}
 
 	if (wrpll_uses_pch_ssc(dev_priv, DPLL_ID_WRPLL2)) {
 		drm_dbg_kms(&dev_priv->drm, "WRPLL2 using PCH SSC\n");
-		dev_priv->pch_ssc_use |= BIT(DPLL_ID_WRPLL2);
+		dev_priv->display.dpll.pch_ssc_use |= BIT(DPLL_ID_WRPLL2);
 	}
 
-	if (dev_priv->pch_ssc_use)
+	if (dev_priv->display.dpll.pch_ssc_use)
 		return;
 
 	if (has_fdi) {

drivers/gpu/drm/i915/i915_drv.h

@@ -374,8 +374,6 @@ struct drm_i915_private {
 		struct file *mmap_singleton;
 	} gem;
 
-	u8 pch_ssc_use;
-
 	/* For i915gm/i945gm vblank irq workaround */
 	u8 vblank_enabled;