diff options
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 33 |
1 files changed, 21 insertions, 12 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c index a5e0eff4a387..6b75cf2603ff 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c @@ -805,12 +805,12 @@ static int sun8i_dwmac_power_internal_phy(struct stmmac_priv *priv) /* Make sure the EPHY is properly reseted, as U-Boot may leave * it at deasserted state, and thus it may fail to reset EMAC. + * + * This assumes the driver has exclusive access to the EPHY reset. */ - reset_control_assert(gmac->rst_ephy); - - ret = reset_control_deassert(gmac->rst_ephy); + ret = reset_control_reset(gmac->rst_ephy); if (ret) { - dev_err(priv->device, "Cannot deassert internal phy\n"); + dev_err(priv->device, "Cannot reset internal PHY\n"); clk_disable_unprepare(gmac->ephy_clk); return ret; } @@ -820,15 +820,14 @@ static int sun8i_dwmac_power_internal_phy(struct stmmac_priv *priv) return 0; } -static int sun8i_dwmac_unpower_internal_phy(struct sunxi_priv_data *gmac) +static void sun8i_dwmac_unpower_internal_phy(struct sunxi_priv_data *gmac) { if (!gmac->internal_phy_powered) - return 0; + return; clk_disable_unprepare(gmac->ephy_clk); reset_control_assert(gmac->rst_ephy); gmac->internal_phy_powered = false; - return 0; } /* MDIO multiplexing switch function @@ -1019,10 +1018,8 @@ static void sun8i_dwmac_exit(struct platform_device *pdev, void *priv) { struct sunxi_priv_data *gmac = priv; - if (gmac->variant->soc_has_internal_phy) { - if (gmac->internal_phy_powered) - sun8i_dwmac_unpower_internal_phy(gmac); - } + if (gmac->variant->soc_has_internal_phy) + sun8i_dwmac_unpower_internal_phy(gmac); clk_disable_unprepare(gmac->tx_clk); @@ -1232,6 +1229,7 @@ static int sun8i_dwmac_probe(struct platform_device *pdev) ndev = dev_get_drvdata(&pdev->dev); priv = netdev_priv(ndev); + /* The mux must be registered after parent MDIO * so after stmmac_dvr_probe() */ @@ -1250,7 +1248,8 @@ static int sun8i_dwmac_probe(struct platform_device *pdev) goto dwmac_remove; } - return ret; + return 0; + dwmac_mux: reset_control_put(gmac->rst_ephy); clk_put(gmac->ephy_clk); @@ -1285,6 +1284,15 @@ static int sun8i_dwmac_remove(struct platform_device *pdev) return 0; } +static void sun8i_dwmac_shutdown(struct platform_device *pdev) +{ + struct net_device *ndev = platform_get_drvdata(pdev); + struct stmmac_priv *priv = netdev_priv(ndev); + struct sunxi_priv_data *gmac = priv->plat->bsp_priv; + + sun8i_dwmac_exit(pdev, gmac); +} + static const struct of_device_id sun8i_dwmac_match[] = { { .compatible = "allwinner,sun8i-h3-emac", .data = &emac_variant_h3 }, @@ -1305,6 +1313,7 @@ MODULE_DEVICE_TABLE(of, sun8i_dwmac_match); static struct platform_driver sun8i_dwmac_driver = { .probe = sun8i_dwmac_probe, .remove = sun8i_dwmac_remove, + .shutdown = sun8i_dwmac_shutdown, .driver = { .name = "dwmac-sun8i", .pm = &stmmac_pltfr_pm_ops, |