phy: cadence: Sierra: Move all reset_control_get*() to a separate function

No functional change. Group devm_reset_control_get() and
devm_reset_control_get_optional() to a separate function.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20210319124128.13308-7-kishon@ti.comSigned-off-by: Vinod Koul <vkoul@kernel.org>

drivers/phy/cadence/phy-cadence-sierra.c

@@ -509,6 +509,28 @@ static int cdns_sierra_phy_get_clocks(struct cdns_sierra_phy *sp,
 	return 0;
 }
 
+static int cdns_sierra_phy_get_resets(struct cdns_sierra_phy *sp,
+				      struct device *dev)
+{
+	struct reset_control *rst;
+
+	rst = devm_reset_control_get(dev, "sierra_reset");
+	if (IS_ERR(rst)) {
+		dev_err(dev, "failed to get reset\n");
+		return PTR_ERR(rst);
+	}
+	sp->phy_rst = rst;
+
+	rst = devm_reset_control_get_optional(dev, "sierra_apb");
+	if (IS_ERR(rst)) {
+		dev_err(dev, "failed to get apb reset\n");
+		return PTR_ERR(rst);
+	}
+	sp->apb_rst = rst;
+
+	return 0;
+}
+
 static int cdns_sierra_phy_probe(struct platform_device *pdev)
 {
 	struct cdns_sierra_phy *sp;
@@ -559,17 +581,9 @@ static int cdns_sierra_phy_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	sp->phy_rst = devm_reset_control_get(dev, "sierra_reset");
-	if (IS_ERR(sp->phy_rst)) {
-		dev_err(dev, "failed to get reset\n");
-		return PTR_ERR(sp->phy_rst);
-	}
-
-	sp->apb_rst = devm_reset_control_get_optional(dev, "sierra_apb");
-	if (IS_ERR(sp->apb_rst)) {
-		dev_err(dev, "failed to get apb reset\n");
-		return PTR_ERR(sp->apb_rst);
-	}
+	ret = cdns_sierra_phy_get_resets(sp, dev);
+	if (ret)
+		return ret;
 
 	ret = clk_prepare_enable(sp->clk);
 	if (ret)