diff options
| author | Kejian Yan | 2016-06-03 10:55:21 +0800 |
|---|---|---|
| committer | David S. Miller | 2016-06-04 21:32:41 -0400 |
| commit | 63434888aaf1b2e73780f3ada9dcf09bf0f206e1 (patch) | |
| tree | c9a6fc9e1528bae3958702c0a97d7a6ed756cc9e | |
| parent | f00ef863da2b59313c466d2c826d2e8c28157d36 (diff) | |
net: hns: net: hns: enet adds support of acpi
Enet needs to get configration parameter by acpi. This patch
adds support of ACPI for enet. The configuration parameter will
be configed in BIOS.
Signed-off-by: Kejian Yan <yankejian@huawei.com>
Signed-off-by: Yisen Zhuang <Yisen.Zhuang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns/hns_enet.c | 56 |
1 files changed, 44 insertions, 12 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c index 3ec3c2798379..ad742a6f5879 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c @@ -132,6 +132,13 @@ static void fill_v2_desc(struct hnae_ring *ring, void *priv, ring_ptr_move_fw(ring, next_to_use); } +static const struct acpi_device_id hns_enet_acpi_match[] = { + { "HISI00C1", 0 }, + { "HISI00C2", 0 }, + { }, +}; +MODULE_DEVICE_TABLE(acpi, hns_enet_acpi_match); + static void fill_desc(struct hnae_ring *ring, void *priv, int size, dma_addr_t dma, int frag_end, int buf_num, enum hns_desc_type type, int mtu) @@ -1870,7 +1877,6 @@ static int hns_nic_dev_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct net_device *ndev; struct hns_nic_priv *priv; - struct device_node *ae_node; u32 port_id; int ret; @@ -1884,20 +1890,45 @@ static int hns_nic_dev_probe(struct platform_device *pdev) priv->dev = dev; priv->netdev = ndev; - if (of_device_is_compatible(dev->of_node, "hisilicon,hns-nic-v1")) - priv->enet_ver = AE_VERSION_1; - else - priv->enet_ver = AE_VERSION_2; + if (dev_of_node(dev)) { + struct device_node *ae_node; - ae_node = of_parse_phandle(dev->of_node, "ae-handle", 0); - if (IS_ERR_OR_NULL(ae_node)) { - ret = PTR_ERR(ae_node); - dev_err(dev, "not find ae-handle\n"); - goto out_read_prop_fail; + if (of_device_is_compatible(dev->of_node, + "hisilicon,hns-nic-v1")) + priv->enet_ver = AE_VERSION_1; + else + priv->enet_ver = AE_VERSION_2; + + ae_node = of_parse_phandle(dev->of_node, "ae-handle", 0); + if (IS_ERR_OR_NULL(ae_node)) { + ret = PTR_ERR(ae_node); + dev_err(dev, "not find ae-handle\n"); + goto out_read_prop_fail; + } + priv->fwnode = &ae_node->fwnode; + } else if (is_acpi_node(dev->fwnode)) { + struct acpi_reference_args args; + + if (acpi_dev_found(hns_enet_acpi_match[0].id)) + priv->enet_ver = AE_VERSION_1; + else if (acpi_dev_found(hns_enet_acpi_match[1].id)) + priv->enet_ver = AE_VERSION_2; + else + return -ENXIO; + + /* try to find port-idx-in-ae first */ + ret = acpi_node_get_property_reference(dev->fwnode, + "ae-handle", 0, &args); + if (ret) { + dev_err(dev, "not find ae-handle\n"); + goto out_read_prop_fail; + } + priv->fwnode = acpi_fwnode_handle(args.adev); + } else { + dev_err(dev, "cannot read cfg data from OF or acpi\n"); + return -ENXIO; } - priv->fwnode = &ae_node->fwnode; - /* try to find port-idx-in-ae first */ ret = device_property_read_u32(dev, "port-idx-in-ae", &port_id); if (ret) { /* only for old code compatible */ @@ -2014,6 +2045,7 @@ static struct platform_driver hns_nic_dev_driver = { .driver = { .name = "hns-nic", .of_match_table = hns_enet_of_match, + .acpi_match_table = ACPI_PTR(hns_enet_acpi_match), }, .probe = hns_nic_dev_probe, .remove = hns_nic_dev_remove, |