diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index c76a1336a4517f50c3d7c48736c98f3b06f92371..8fa13d43b5bc029f0186f1b238514afc723b03e1 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -4742,8 +4742,10 @@ int stmmac_suspend(struct device *dev)
 		stmmac_mac_set(priv, priv->ioaddr, false);
 		pinctrl_pm_select_sleep_state(priv->device);
 		/* Disable clock in case of PWM is off */
-		clk_disable(priv->plat->pclk);
-		clk_disable(priv->plat->stmmac_clk);
+		if (priv->plat->clk_ptp_ref)
+			clk_disable_unprepare(priv->plat->clk_ptp_ref);
+		clk_disable_unprepare(priv->plat->pclk);
+		clk_disable_unprepare(priv->plat->stmmac_clk);
 	}
 	mutex_unlock(&priv->lock);
 
@@ -4806,8 +4808,10 @@ int stmmac_resume(struct device *dev)
 	} else {
 		pinctrl_pm_select_default_state(priv->device);
 		/* enable the clk previously disabled */
-		clk_enable(priv->plat->stmmac_clk);
-		clk_enable(priv->plat->pclk);
+		clk_prepare_enable(priv->plat->stmmac_clk);
+		clk_prepare_enable(priv->plat->pclk);
+		if (priv->plat->clk_ptp_ref)
+			clk_prepare_enable(priv->plat->clk_ptp_ref);
 		/* reset the phy so that it's ready */
 		if (priv->mii)
 			stmmac_mdio_reset(priv->mii);