drm/i915/display/phys: use intel_de_rmw if possible

The helper makes the code more compact and readable.

Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230105131046.2173431-4-andrzej.hajda@intel.com

1 files changed, 13 insertions, 30 deletions

diff --git a/drivers/gpu/drm/i915/display/intel_combo_phy.c b/drivers/gpu/drm/i915/display/intel_combo_phy.c
index 8b870b2dd4f9..27e98eabb006 100644
--- a/drivers/gpu/drm/i915/display/intel_combo_phy.c
+++ b/drivers/gpu/drm/i915/display/intel_combo_phy.c
@@ -78,14 +78,11 @@ static void icl_set_procmon_ref_values(struct drm_i915_private *dev_priv,
 				       enum phy phy)
 {
 	const struct icl_procmon *procmon;
-	u32 val;
 
 	procmon = icl_get_procmon_ref_values(dev_priv, phy);
 
-	val = intel_de_read(dev_priv, ICL_PORT_COMP_DW1(phy));
-	val &= ~((0xff << 16) | 0xff);
-	val |= procmon->dw1;
-	intel_de_write(dev_priv, ICL_PORT_COMP_DW1(phy), val);
+	intel_de_rmw(dev_priv, ICL_PORT_COMP_DW1(phy),
+		     (0xff << 16) | 0xff, procmon->dw1);
 
 	intel_de_write(dev_priv, ICL_PORT_COMP_DW9(phy), procmon->dw9);
 	intel_de_write(dev_priv, ICL_PORT_COMP_DW10(phy), procmon->dw10);
@@ -267,7 +264,6 @@ void intel_combo_phy_power_up_lanes(struct drm_i915_private *dev_priv,
 				    int lane_count, bool lane_reversal)
 {
 	u8 lane_mask;
-	u32 val;
 
 	if (is_dsi) {
 		drm_WARN_ON(&dev_priv->drm, lane_reversal);
@@ -308,10 +304,8 @@ void intel_combo_phy_power_up_lanes(struct drm_i915_private *dev_priv,
 		}
 	}
 
-	val = intel_de_read(dev_priv, ICL_PORT_CL_DW10(phy));
-	val &= ~PWR_DOWN_LN_MASK;
-	val |= lane_mask;
-	intel_de_write(dev_priv, ICL_PORT_CL_DW10(phy), val);
+	intel_de_rmw(dev_priv, ICL_PORT_CL_DW10(phy),
+		     PWR_DOWN_LN_MASK, lane_mask);
 }
 
 static void icl_combo_phys_init(struct drm_i915_private *dev_priv)
@@ -366,19 +360,13 @@ skip_phy_misc:
 
 		icl_set_procmon_ref_values(dev_priv, phy);
 
-		if (phy_is_master(dev_priv, phy)) {
-			val = intel_de_read(dev_priv, ICL_PORT_COMP_DW8(phy));
-			val |= IREFGEN;
-			intel_de_write(dev_priv, ICL_PORT_COMP_DW8(phy), val);
-		}
-
-		val = intel_de_read(dev_priv, ICL_PORT_COMP_DW0(phy));
-		val |= COMP_INIT;
-		intel_de_write(dev_priv, ICL_PORT_COMP_DW0(phy), val);
+		if (phy_is_master(dev_priv, phy))
+			intel_de_rmw(dev_priv, ICL_PORT_COMP_DW8(phy),
+				     0, IREFGEN);
 
-		val = intel_de_read(dev_priv, ICL_PORT_CL_DW5(phy));
-		val |= CL_POWER_DOWN_ENABLE;
-		intel_de_write(dev_priv, ICL_PORT_CL_DW5(phy), val);
+		intel_de_rmw(dev_priv, ICL_PORT_COMP_DW0(phy), 0, COMP_INIT);
+		intel_de_rmw(dev_priv, ICL_PORT_CL_DW5(phy),
+			     0, CL_POWER_DOWN_ENABLE);
 	}
 }
 
@@ -387,8 +375,6 @@ static void icl_combo_phys_uninit(struct drm_i915_private *dev_priv)
 	enum phy phy;
 
 	for_each_combo_phy_reverse(dev_priv, phy) {
-		u32 val;
-
 		if (phy == PHY_A &&
 		    !icl_combo_phy_verify_state(dev_priv, phy)) {
 			if (IS_TIGERLAKE(dev_priv) || IS_DG1(dev_priv)) {
@@ -410,14 +396,11 @@ static void icl_combo_phys_uninit(struct drm_i915_private *dev_priv)
 		if (!has_phy_misc(dev_priv, phy))
 			goto skip_phy_misc;
 
-		val = intel_de_read(dev_priv, ICL_PHY_MISC(phy));
-		val |= ICL_PHY_MISC_DE_IO_COMP_PWR_DOWN;
-		intel_de_write(dev_priv, ICL_PHY_MISC(phy), val);
+		intel_de_rmw(dev_priv, ICL_PHY_MISC(phy), 0,
+			     ICL_PHY_MISC_DE_IO_COMP_PWR_DOWN);
 
 skip_phy_misc:
-		val = intel_de_read(dev_priv, ICL_PORT_COMP_DW0(phy));
-		val &= ~COMP_INIT;
-		intel_de_write(dev_priv, ICL_PORT_COMP_DW0(phy), val);
+		intel_de_rmw(dev_priv, ICL_PORT_COMP_DW0(phy), COMP_INIT, 0);
 	}
 }