From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751452AbcFCChA (ORCPT ); Thu, 2 Jun 2016 22:37:00 -0400 Received: from szxga02-in.huawei.com ([119.145.14.65]:44495 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750980AbcFCCgy (ORCPT ); Thu, 2 Jun 2016 22:36:54 -0400 From: Yisen Zhuang To: , , CC: , , , , , , , , , , Subject: [PATCH v4 net-next 13/13] net: hns: net: hns: enet adds support of acpi Date: Fri, 3 Jun 2016 10:55:21 +0800 Message-ID: <1464922521-30928-14-git-send-email-Yisen.Zhuang@huawei.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1464922521-30928-1-git-send-email-Yisen.Zhuang@huawei.com> References: <1464922521-30928-1-git-send-email-Yisen.Zhuang@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.67.212.75] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020202.5750ED41.0052,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0, ip=0.0.0.0, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: acd784adf92f07c3bebe24e566e30f23 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Kejian Yan 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 Signed-off-by: Yisen Zhuang --- change log: v2: 1. use acpi_dev_found() instead of acpi_match_device_ids() 2. use is_acpi_node() to check if it works by ACPI case 3. use dev_of_node() to check if it works by DT case v1: first submit link: https://lkml.org/lkml/2016/5/13/99 --- drivers/net/ethernet/hisilicon/hns/hns_enet.c | 56 +++++++++++++++++++++------ 1 file 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 3ec3c27..ad742a6 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, -- 1.9.1