diff --git a/drivers/gpu/drm/radeon/radeon_clocks.c b/drivers/gpu/drm/radeon/radeon_clocks.c
index 14448a740ba632cf5f2fcbaf2d2d5804f3446b93..690d8907135a45d2fcac6f688db6986db4467551 100644
--- a/drivers/gpu/drm/radeon/radeon_clocks.c
+++ b/drivers/gpu/drm/radeon/radeon_clocks.c
@@ -327,6 +327,14 @@ void radeon_get_clock_info(struct drm_device *dev)
 	mpll->max_feedback_div = 0xff;
 	mpll->best_vco = 0;
 
+	if (!rdev->clock.default_sclk)
+		rdev->clock.default_sclk = radeon_get_engine_clock(rdev);
+	if ((!rdev->clock.default_mclk) && rdev->asic->get_memory_clock)
+		rdev->clock.default_mclk = radeon_get_memory_clock(rdev);
+
+	rdev->pm.current_sclk = rdev->clock.default_sclk;
+	rdev->pm.current_mclk = rdev->clock.default_mclk;
+
 }
 
 /* 10 khz */
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 69b3c2291e926730944107c76e1b1d52bb0270b9..256d204a6d24226a93f68b5d4d097fc4b52739c7 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -293,30 +293,20 @@ bool radeon_card_posted(struct radeon_device *rdev)
 void radeon_update_bandwidth_info(struct radeon_device *rdev)
 {
 	fixed20_12 a;
-	u32 sclk, mclk;
+	u32 sclk = rdev->pm.current_sclk;
+	u32 mclk = rdev->pm.current_mclk;
 
-	if (rdev->flags & RADEON_IS_IGP) {
-		sclk = radeon_get_engine_clock(rdev);
-		mclk = rdev->clock.default_mclk;
-
-		a.full = dfixed_const(100);
-		rdev->pm.sclk.full = dfixed_const(sclk);
-		rdev->pm.sclk.full = dfixed_div(rdev->pm.sclk, a);
-		rdev->pm.mclk.full = dfixed_const(mclk);
-		rdev->pm.mclk.full = dfixed_div(rdev->pm.mclk, a);
+	/* sclk/mclk in Mhz */
+	a.full = dfixed_const(100);
+	rdev->pm.sclk.full = dfixed_const(sclk);
+	rdev->pm.sclk.full = dfixed_div(rdev->pm.sclk, a);
+	rdev->pm.mclk.full = dfixed_const(mclk);
+	rdev->pm.mclk.full = dfixed_div(rdev->pm.mclk, a);
 
+	if (rdev->flags & RADEON_IS_IGP) {
 		a.full = dfixed_const(16);
 		/* core_bandwidth = sclk(Mhz) * 16 */
 		rdev->pm.core_bandwidth.full = dfixed_div(rdev->pm.sclk, a);
-	} else {
-		sclk = radeon_get_engine_clock(rdev);
-		mclk = radeon_get_memory_clock(rdev);
-
-		a.full = dfixed_const(100);
-		rdev->pm.sclk.full = dfixed_const(sclk);
-		rdev->pm.sclk.full = dfixed_div(rdev->pm.sclk, a);
-		rdev->pm.mclk.full = dfixed_const(mclk);
-		rdev->pm.mclk.full = dfixed_div(rdev->pm.mclk, a);
 	}
 }
 
diff --git a/drivers/gpu/drm/radeon/radeon_i2c.c b/drivers/gpu/drm/radeon/radeon_i2c.c
index 0416804d8f3010f7d0451e17e5c2428eecba3d51..6a13ee38a5b9fc71201a0a9a38dd93b3ab5957eb 100644
--- a/drivers/gpu/drm/radeon/radeon_i2c.c
+++ b/drivers/gpu/drm/radeon/radeon_i2c.c
@@ -213,7 +213,7 @@ static void post_xfer(struct i2c_adapter *i2c_adap)
 
 static u32 radeon_get_i2c_prescale(struct radeon_device *rdev)
 {
-	u32 sclk = radeon_get_engine_clock(rdev);
+	u32 sclk = rdev->pm.current_sclk;
 	u32 prescale = 0;
 	u32 nm;
 	u8 n, m, loop;