phy: omap-usb2-phy: Use dev_err_probe()

Replace the open-code with dev_err_probe() to simplify the code.

Signed-off-by: Ye Xingchen <[e-mail]>
Acked-by: Uwe Kleine-König <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Vinod Koul <[e-mail]>

drivers/phy/ti/phy-omap-usb2.c

···
 			 PTR_ERR(phy->wkupclk));
 		phy->wkupclk = devm_clk_get(phy->dev, "usb_phy_cm_clk32k");
 
-		if (IS_ERR(phy->wkupclk)) {
-			if (PTR_ERR(phy->wkupclk) != -EPROBE_DEFER)
-				dev_err(&pdev->dev, "unable to get usb_phy_cm_clk32k\n");
-			return PTR_ERR(phy->wkupclk);
-		}
+		if (IS_ERR(phy->wkupclk))
+			return dev_err_probe(&pdev->dev, PTR_ERR(phy->wkupclk),
+					     "unable to get usb_phy_cm_clk32k\n");
 
 		dev_warn(&pdev->dev,
 			 "found usb_phy_cm_clk32k, please fix DTS\n");