From 0738c54d63249bd4a51aa2e899877c8316f19957 Mon Sep 17 00:00:00 2001 From: Suman Tripathi Date: Tue, 23 Jun 2015 14:47:14 +0530 Subject: [PATCH] drivers: net: xgene: Fix the ACPI support for RGMII/SGMII0/XFI interface of APM X-Gene SoC ethernet controller. This patch implements couple of fixes to support ACPI for RGMII/SGMII0/XFI interface of APM X-Gene SoC ethernet controller driver. This patch uses the _SUN acpi object to fetch the port-id information whereas the FDT uses port-id binding for port-id information. Signed-off-by: Iyappan Subramanian Signed-off-by: Suman Tripathi Signed-off-by: David S. Miller --- drivers/net/ethernet/apm/xgene/xgene_enet_hw.c | 2 +- drivers/net/ethernet/apm/xgene/xgene_enet_main.c | 64 ++++++++++++++++-------- 2 files changed, 43 insertions(+), 23 deletions(-) diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c index 25873d1..8ff736d 100644 --- a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c @@ -751,7 +751,7 @@ static int xgene_mdiobus_register(struct xgene_enet_pdata *pdata, if (ret) return -EINVAL; - phy = get_phy_device(mdio, phy_id, true); + phy = get_phy_device(mdio, phy_id, false); if (!phy || IS_ERR(phy)) return -EIO; diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c index 1bb3175..17f0df5 100644 --- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c @@ -29,6 +29,7 @@ #define RES_RING_CMD 2 static const struct of_device_id xgene_enet_of_match[]; +static const struct acpi_device_id xgene_enet_acpi_match[]; static void xgene_enet_init_bufpool(struct xgene_enet_desc_ring *buf_pool) { @@ -870,24 +871,33 @@ static const struct net_device_ops xgene_ndev_ops = { .ndo_set_mac_address = xgene_enet_set_mac_address, }; -static int xgene_get_port_id(struct device *dev, struct xgene_enet_pdata *pdata) +static int xgene_get_port_id_acpi(struct device *dev, + struct xgene_enet_pdata *pdata) +{ + acpi_status status; + u64 temp; + + status = acpi_evaluate_integer(ACPI_HANDLE(dev), "_SUN", NULL, &temp); + if (ACPI_FAILURE(status)) { + pdata->port_id = 0; + } else { + pdata->port_id = temp; + } + + return 0; +} + +static int xgene_get_port_id_dt(struct device *dev, struct xgene_enet_pdata *pdata) { u32 id = 0; int ret; - ret = device_property_read_u32(dev, "port-id", &id); - - switch (ret) { - case -EINVAL: + ret = of_property_read_u32(dev->of_node, "port-id", &id); + if (ret) { pdata->port_id = 0; ret = 0; - break; - case 0: + } else { pdata->port_id = id & BIT(0); - break; - default: - dev_err(dev, "Incorrect port-id specified: errno: %d\n", ret); - break; } return ret; @@ -977,7 +987,12 @@ static int xgene_enet_get_resources(struct xgene_enet_pdata *pdata) return -ENOMEM; } - ret = xgene_get_port_id(dev, pdata); + if (dev->of_node) + ret = xgene_get_port_id_dt(dev, pdata); +#ifdef CONFIG_ACPI + else + ret = xgene_get_port_id_acpi(dev, pdata); +#endif if (ret) return ret; @@ -1173,9 +1188,7 @@ static int xgene_enet_probe(struct platform_device *pdev) struct xgene_enet_pdata *pdata; struct device *dev = &pdev->dev; struct xgene_mac_ops *mac_ops; -#ifdef CONFIG_OF const struct of_device_id *of_id; -#endif int ret; ndev = alloc_etherdev(sizeof(struct xgene_enet_pdata)); @@ -1194,16 +1207,23 @@ static int xgene_enet_probe(struct platform_device *pdev) NETIF_F_GSO | NETIF_F_GRO; -#ifdef CONFIG_OF of_id = of_match_device(xgene_enet_of_match, &pdev->dev); if (of_id) { pdata->enet_id = (enum xgene_enet_id)of_id->data; - if (!pdata->enet_id) { - free_netdev(ndev); - return -ENODEV; - } + } +#ifdef CONFIG_ACPI + else { + const struct acpi_device_id *acpi_id; + + acpi_id = acpi_match_device(xgene_enet_acpi_match, &pdev->dev); + if (acpi_id) + pdata->enet_id = (enum xgene_enet_id) acpi_id->driver_data; } #endif + if (!pdata->enet_id) { + free_netdev(ndev); + return -ENODEV; + } ret = xgene_enet_get_resources(pdata); if (ret) @@ -1266,9 +1286,9 @@ static int xgene_enet_remove(struct platform_device *pdev) #ifdef CONFIG_ACPI static const struct acpi_device_id xgene_enet_acpi_match[] = { - { "APMC0D05", }, - { "APMC0D30", }, - { "APMC0D31", }, + { "APMC0D05", XGENE_ENET1}, + { "APMC0D30", XGENE_ENET1}, + { "APMC0D31", XGENE_ENET1}, { } }; MODULE_DEVICE_TABLE(acpi, xgene_enet_acpi_match); -- 2.7.4