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net: lan743x: Create separate PCS power reset function

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Create separate PCS power reset function from lan743x_sgmii_config () to use
as subroutine.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Raju Lakkaraju
2024-09-06 16:05:08 +05:30
committed by David S. Miller
parent 4b3fc475c6
commit ef0250456c
1 changed files with 29 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

55
drivers/net/ethernet/microchip/lan743x_main.c
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@@ -1147,12 +1147,39 @@ static int lan743x_pcs_seq_state(struct lan743x_adapter *adapter, u8 state)
return 0;
}
static int lan743x_pcs_power_reset(struct lan743x_adapter *adapter)
{
int mii_ctl;
int ret;
/* SGMII/1000/2500BASE-X PCS power down */
mii_ctl = lan743x_sgmii_read(adapter, MDIO_MMD_VEND2, MII_BMCR);
if (mii_ctl < 0)
return mii_ctl;
mii_ctl |= BMCR_PDOWN;
ret = lan743x_sgmii_write(adapter, MDIO_MMD_VEND2, MII_BMCR, mii_ctl);
if (ret < 0)
return ret;
ret = lan743x_pcs_seq_state(adapter, PCS_POWER_STATE_DOWN);
if (ret < 0)
return ret;
/* SGMII/1000/2500BASE-X PCS power up */
mii_ctl &= ~BMCR_PDOWN;
ret = lan743x_sgmii_write(adapter, MDIO_MMD_VEND2, MII_BMCR, mii_ctl);
if (ret < 0)
return ret;
return lan743x_pcs_seq_state(adapter, PCS_POWER_STATE_UP);
}
static int lan743x_sgmii_config(struct lan743x_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
struct phy_device *phydev = netdev->phydev;
enum lan743x_sgmii_lsd lsd = POWER_DOWN;
int mii_ctl;
bool status;
int ret;
@@ -1209,31 +1236,7 @@ static int lan743x_sgmii_config(struct lan743x_adapter *adapter)
netif_dbg(adapter, drv, adapter->netdev,
"SGMII 1G mode enable\n");
/* SGMII/1000/2500BASE-X PCS power down */
mii_ctl = lan743x_sgmii_read(adapter, MDIO_MMD_VEND2, MII_BMCR);
if (mii_ctl < 0)
return mii_ctl;
mii_ctl |= BMCR_PDOWN;
ret = lan743x_sgmii_write(adapter, MDIO_MMD_VEND2, MII_BMCR, mii_ctl);
if (ret < 0)
return ret;
ret = lan743x_pcs_seq_state(adapter, PCS_POWER_STATE_DOWN);
if (ret < 0)
return ret;
/* SGMII/1000/2500BASE-X PCS power up */
mii_ctl &= ~BMCR_PDOWN;
ret = lan743x_sgmii_write(adapter, MDIO_MMD_VEND2, MII_BMCR, mii_ctl);
if (ret < 0)
return ret;
ret = lan743x_pcs_seq_state(adapter, PCS_POWER_STATE_UP);
if (ret < 0)
return ret;
return 0;
return lan743x_pcs_power_reset(adapter);
}
static void lan743x_mac_set_address(struct lan743x_adapter *adapter,