[PATCH net v3 1/3] net: ethernet: mediatek: fix RMII mode and add REVMII supported by GMAC

[Sean Wang]

The patch fixes up the incorrect setup of reduced MII (RMII) on GMAC
and adds the supplement for the setup of reverse MII (REVMII) on GMAC
, and rearranges the error handling for invalid PHY argument.

Signed-off-by: Sean Wang <sean.w...@mediatek.com>
---
 drivers/net/ethernet/mediatek/mtk_eth_soc.c |   15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c 
b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index 88b04dd..f19b8b9 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -245,12 +245,16 @@ static int mtk_phy_connect(struct mtk_mac *mac)
        case PHY_INTERFACE_MODE_MII:
                ge_mode = 1;
                break;
-       case PHY_INTERFACE_MODE_RMII:
+       case PHY_INTERFACE_MODE_REVMII:
                ge_mode = 2;
                break;
+       case PHY_INTERFACE_MODE_RMII:
+               if (!mac->id)
+                       goto err_phy;
+               ge_mode = 3;
+               break;
        default:
-               dev_err(eth->dev, "invalid phy_mode\n");
-               return -1;
+               goto err_phy;
        }
 
        /* put the gmac into the right mode */
@@ -272,6 +276,11 @@ static int mtk_phy_connect(struct mtk_mac *mac)
        of_node_put(np);
 
        return 0;
+
+err_phy:
+       of_node_put(np);
+       dev_err(eth->dev, "invalid phy_mode\n");
+       return -EINVAL;
 }
 
 static int mtk_mdio_init(struct mtk_eth *eth)
-- 
1.7.9.5