[PATCH v2 4/5] net: phy: at803x: Disable phy delay for RGMII mode

[Vinod Koul]

For RGMII mode, phy delay should be disabled. Add this case along
with disable delay routines.

Signed-off-by: Vinod Koul <vk...@kernel.org>
---
 drivers/net/phy/at803x.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index f9432d053a22..e7cf1d5b0514 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -122,6 +122,18 @@ static inline int at803x_enable_tx_delay(struct phy_device 
*phydev)
                                        AT803X_DEBUG_TX_CLK_DLY_EN);
 }
 
+static inline int at803x_disable_rx_delay(struct phy_device *phydev)
+{
+       return at803x_debug_reg_mask(phydev, AT803X_DEBUG_REG_0,
+                                    AT803X_DEBUG_RX_CLK_DLY_EN, 0);
+}
+
+static inline int at803x_disable_tx_delay(struct phy_device *phydev)
+{
+       return at803x_debug_reg_mask(phydev, AT803X_DEBUG_REG_5,
+                                    AT803X_DEBUG_TX_CLK_DLY_EN, 0);
+}
+
 /* save relevant PHY registers to private copy */
 static void at803x_context_save(struct phy_device *phydev,
                                struct at803x_context *context)
@@ -269,6 +281,15 @@ static int at803x_config_init(struct phy_device *phydev)
                        return ret;
        }
 
+       if (phydev->interface == PHY_INTERFACE_MODE_RGMII) {
+               ret = at803x_disable_rx_delay(phydev);
+               if (ret < 0)
+                       return ret;
+               ret = at803x_disable_tx_delay(phydev);
+               if (ret < 0)
+                       return ret;
+       }
+
        return 0;
 }
 
-- 
2.20.1