[PATCH net-next 4/9] net: stmmac: lpc18xx: validate phy_intf_sel

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

Validate the phy_intf_sel value rather than the PHY interface mode.
This will allow us to transition to the ->set_phy_intf_sel() method.
Note that this will allow GMII as well as MII as the phy_intf_sel
value is the same for both.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c
index 0f6be2a17e65..ec60968113b8 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-lpc18xx.c
@@ -47,14 +47,13 @@ static int lpc18xx_dwmac_probe(struct platform_device *pdev)
 		return PTR_ERR(reg);
 	}
 
-	if (plat_dat->phy_interface != PHY_INTERFACE_MODE_MII &&
-	    plat_dat->phy_interface != PHY_INTERFACE_MODE_RMII) {
+	ethmode = stmmac_get_phy_intf_sel(plat_dat->phy_interface);
+	if (ethmode != PHY_INTF_SEL_GMII_MII &&
+	    ethmode != PHY_INTF_SEL_RMII) {
 		dev_err(&pdev->dev, "Only MII and RMII mode supported\n");
 		return -EINVAL;
 	}
 
-	ethmode = stmmac_get_phy_intf_sel(plat_dat->phy_interface);
-
 	regmap_update_bits(reg, LPC18XX_CREG_CREG6,
 			   LPC18XX_CREG_CREG6_ETHMODE_MASK, ethmode);
 
-- 
2.47.3