diff --git a/drivers/gpu/drm/i915/display/intel_display_power_well.c b/drivers/gpu/drm/i915/display/intel_display_power_well.c
index 3a93d7378309..02cb4d800e23 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power_well.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power_well.c
@@ -726,12 +726,28 @@ static void assert_can_disable_dc9(struct intel_display *display)
 	  */
 }
 
+static u32 dc_state_ro_mask(struct intel_display *display)
+{
+	if (DISPLAY_VER(display) >= 20)
+		return DC_STATE_EN_CSR_MASK_CMTG_1 | DC_STATE_EN_CSR_MASK_CMTG_0;
+	else if (DISPLAY_VER(display) >= 13 && !display->platform.dg2)
+		return DC_STATE_EN_CSR_MASK_CMTG_0;
+
+	return 0;
+}
+
 static void gen9_write_dc_state(struct intel_display *display,
 				u32 state)
 {
 	int rewrites = 0;
 	int rereads = 0;
 	u32 v;
+	/*
+	 * Mask out RO status bits from read-back comparison.
+	 * HW may set these bits independently, so exclude them
+	 * to prevent the verify loop from retrying due to RO bits mismatch.
+	 */
+	u32 ro_mask = dc_state_ro_mask(display);
 
 	intel_de_write(display, DC_STATE_EN, state);
 
@@ -743,7 +759,7 @@ static void gen9_write_dc_state(struct intel_display *display,
 	do  {
 		v = intel_de_read(display, DC_STATE_EN);
 
-		if (v != state) {
+		if ((v & ~ro_mask) != (state & ~ro_mask)) {
 			intel_de_write(display, DC_STATE_EN, state);
 			rewrites++;
 			rereads = 0;
@@ -753,10 +769,10 @@ static void gen9_write_dc_state(struct intel_display *display,
 
 	} while (rewrites < 100);
 
-	if (v != state)
+	if ((v & ~ro_mask) != (state & ~ro_mask))
 		drm_err(display->drm,
-			"Writing dc state to 0x%x failed, now 0x%x\n",
-			state, v);
+			"Writing dc state to 0x%x failed, now 0x%x (ro_mask=0x%x)\n",
+			state, v, ro_mask);
 
 	/* Most of the times we need one retry, avoid spam */
 	if (rewrites > 1)
diff --git a/drivers/gpu/drm/i915/display/intel_display_regs.h b/drivers/gpu/drm/i915/display/intel_display_regs.h
index 329909e3f70a..bb7329c8964c 100644
--- a/drivers/gpu/drm/i915/display/intel_display_regs.h
+++ b/drivers/gpu/drm/i915/display/intel_display_regs.h
@@ -3081,6 +3081,10 @@ enum skl_power_gate {
 #define  DC_STATE_EN_UPTO_DC5		REG_FIELD_PREP(DC_STATE_EN_UPTO_DC3CO_DC5_DC6_MASK, 1)
 #define  DC_STATE_EN_UPTO_DC6		REG_FIELD_PREP(DC_STATE_EN_UPTO_DC3CO_DC5_DC6_MASK, 2)
 #define  DC_STATE_EN_UPTO_DC3CO	REG_FIELD_PREP(DC_STATE_EN_UPTO_DC3CO_DC5_DC6_MASK, 3)
+/* display version 20+ */
+#define  DC_STATE_EN_CSR_MASK_CMTG_1	REG_BIT(11)
+/* display version 13+, except dg2 */
+#define  DC_STATE_EN_CSR_MASK_CMTG_0	REG_BIT(10)
 
 #define  DC_STATE_DEBUG                  _MMIO(0x45520)
 #define  DC_STATE_DEBUG_MASK_CORES	(1 << 0)