[PATCH net-next 2/4] net: stmmac: anarion: clean up interface parsing

["Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>]

anarion_config_dt() used a switch statement to check for the RGMII
modes, complete with an unnecessary "fallthrough", and also printed
the numerical value of the PHY interface mode on error. Clean this
up using the phy_interface_mode_is_rgmii() helper, and print the
English version of the PHY interface mode on error.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
---
 .../net/ethernet/stmicro/stmmac/dwmac-anarion.c    | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c
index 232aae752690..941ea724c643 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-anarion.c
@@ -79,17 +79,11 @@ anarion_config_dt(struct platform_device *pdev,
 
 	gmac->ctl_block = ctl_block;
 
-	switch (plat_dat->phy_interface) {
-	case PHY_INTERFACE_MODE_RGMII:
-		fallthrough;
-	case PHY_INTERFACE_MODE_RGMII_ID:
-	case PHY_INTERFACE_MODE_RGMII_RXID:
-	case PHY_INTERFACE_MODE_RGMII_TXID:
+	if (phy_interface_mode_is_rgmii(plat_dat->phy_interface)) {
 		gmac->phy_intf_sel = GMAC_CONFIG_INTF_RGMII;
-		break;
-	default:
-		dev_err(&pdev->dev, "Unsupported phy-mode (%d)\n",
-			plat_dat->phy_interface);
+	} else {
+		dev_err(&pdev->dev, "Unsupported phy-mode (%s)\n",
+			phy_modes(plat_dat->phy_interface));
 		return ERR_PTR(-ENOTSUPP);
 	}
 
-- 
2.30.2