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Wysocki" , Jeremy Linton , Andrew Lunn , Andy Shevchenko , Florian Fainelli , Russell King - ARM Linux admin , Cristi Sovaiala , Florin Laurentiu Chiculita , Ioana Ciornei , Madalin Bucur , Heikki Krogerus , Marcin Wojtas , Pieter Jansen Van Vuuren , Jon , Saravana Kannan , Randy Dunlap Subject: [net-next PATCH v5 15/15] net: dpaa2-mac: Add ACPI support for DPAA2 MAC driver Date: Mon, 8 Feb 2021 20:42:44 +0530 Message-Id: <20210208151244.16338-16-calvin.johnson@oss.nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210208151244.16338-1-calvin.johnson@oss.nxp.com> References: <20210208151244.16338-1-calvin.johnson@oss.nxp.com> X-Originating-IP: [14.142.151.118] X-ClientProxiedBy: SG2PR04CA0176.apcprd04.prod.outlook.com (2603:1096:4:14::14) To AM0PR04MB5636.eurprd04.prod.outlook.com (2603:10a6:208:130::22) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from lsv03152.swis.in-blr01.nxp.com (14.142.151.118) by SG2PR04CA0176.apcprd04.prod.outlook.com (2603:1096:4:14::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3825.19 via Frontend Transport; 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Miller" , linux-arm-kernel@lists.infradead.org, Laurentiu Tudor Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Modify dpaa2_mac_connect() to support ACPI along with DT. Modify dpaa2_mac_get_node() to get the dpmac fwnode from either DT or ACPI. Replace of_get_phy_mode with fwnode_get_phy_mode to get phy-mode for a dpmac_node. Use helper function phylink_fwnode_phy_connect() to find phy_dev and connect to mac->phylink. Signed-off-by: Calvin Johnson --- Changes in v5: - replace fwnode_get_id() with OF and ACPI function calls Changes in v4: None Changes in v3: None Changes in v2: - Refactor OF functions to use fwnode functions .../net/ethernet/freescale/dpaa2/dpaa2-mac.c | 91 +++++++++++-------- 1 file changed, 54 insertions(+), 37 deletions(-) diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c index ccaf7e35abeb..87bb49722611 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c @@ -1,6 +1,9 @@ // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) /* Copyright 2019 NXP */ +#include +#include + #include "dpaa2-eth.h" #include "dpaa2-mac.h" @@ -34,39 +37,51 @@ static int phy_mode(enum dpmac_eth_if eth_if, phy_interface_t *if_mode) return 0; } -/* Caller must call of_node_put on the returned value */ -static struct device_node *dpaa2_mac_get_node(u16 dpmac_id) +static struct fwnode_handle *dpaa2_mac_get_node(struct device *dev, + u16 dpmac_id) { - struct device_node *dpmacs, *dpmac = NULL; - u32 id; + struct fwnode_handle *parent, *child = NULL; + struct device_node *dpmacs = NULL; int err; + u32 id; - dpmacs = of_find_node_by_name(NULL, "dpmacs"); - if (!dpmacs) - return NULL; + if (is_of_node(dev->parent->fwnode)) { + dpmacs = of_find_node_by_name(NULL, "dpmacs"); + if (!dpmacs) + return NULL; + parent = of_fwnode_handle(dpmacs); + } else if (is_acpi_node(dev->parent->fwnode)) { + parent = dev->parent->fwnode; + } - while ((dpmac = of_get_next_child(dpmacs, dpmac)) != NULL) { - err = of_property_read_u32(dpmac, "reg", &id); - if (err) + fwnode_for_each_child_node(parent, child) { + err = -EINVAL; + if (is_acpi_device_node(child)) + err = acpi_get_local_address(ACPI_HANDLE_FWNODE(child), &id); + else if (is_of_node(child)) + err = of_property_read_u32(to_of_node(child), "reg", &id); + if (err) { continue; - if (id == dpmac_id) - break; + } else if (id == dpmac_id) { + if (is_of_node(dev->parent->fwnode)) + of_node_put(dpmacs); + return child; + } } - - of_node_put(dpmacs); - - return dpmac; + if (is_of_node(dev->parent->fwnode)) + of_node_put(dpmacs); + return NULL; } -static int dpaa2_mac_get_if_mode(struct device_node *node, +static int dpaa2_mac_get_if_mode(struct fwnode_handle *dpmac_node, struct dpmac_attr attr) { phy_interface_t if_mode; int err; - err = of_get_phy_mode(node, &if_mode); - if (!err) - return if_mode; + err = fwnode_get_phy_mode(dpmac_node); + if (err > 0) + return err; err = phy_mode(attr.eth_if, &if_mode); if (!err) @@ -235,26 +250,27 @@ static const struct phylink_mac_ops dpaa2_mac_phylink_ops = { }; static int dpaa2_pcs_create(struct dpaa2_mac *mac, - struct device_node *dpmac_node, int id) + struct fwnode_handle *dpmac_node, + int id) { struct mdio_device *mdiodev; - struct device_node *node; + struct fwnode_handle *node; - node = of_parse_phandle(dpmac_node, "pcs-handle", 0); - if (!node) { + node = fwnode_find_reference(dpmac_node, "pcs-handle", 0); + if (IS_ERR(node)) { /* do not error out on old DTS files */ netdev_warn(mac->net_dev, "pcs-handle node not found\n"); return 0; } - if (!of_device_is_available(node)) { + if (!of_device_is_available(to_of_node(node))) { netdev_err(mac->net_dev, "pcs-handle node not available\n"); - of_node_put(node); + of_node_put(to_of_node(node)); return -ENODEV; } - mdiodev = of_mdio_find_device(node); - of_node_put(node); + mdiodev = fwnode_mdio_find_device(node); + fwnode_handle_put(node); if (!mdiodev) return -EPROBE_DEFER; @@ -283,13 +299,12 @@ static void dpaa2_pcs_destroy(struct dpaa2_mac *mac) int dpaa2_mac_connect(struct dpaa2_mac *mac) { struct net_device *net_dev = mac->net_dev; - struct device_node *dpmac_node; + struct fwnode_handle *dpmac_node = NULL; struct phylink *phylink; int err; mac->if_link_type = mac->attr.link_type; - - dpmac_node = dpaa2_mac_get_node(mac->attr.id); + dpmac_node = dpaa2_mac_get_node(&mac->mc_dev->dev, mac->attr.id); if (!dpmac_node) { netdev_err(net_dev, "No dpmac@%d node found.\n", mac->attr.id); return -ENODEV; @@ -306,7 +321,7 @@ int dpaa2_mac_connect(struct dpaa2_mac *mac) * error out if the interface mode requests them and there is no PHY * to act upon them */ - if (of_phy_is_fixed_link(dpmac_node) && + if (of_phy_is_fixed_link(to_of_node(dpmac_node)) && (mac->if_mode == PHY_INTERFACE_MODE_RGMII_ID || mac->if_mode == PHY_INTERFACE_MODE_RGMII_RXID || mac->if_mode == PHY_INTERFACE_MODE_RGMII_TXID)) { @@ -327,7 +342,7 @@ int dpaa2_mac_connect(struct dpaa2_mac *mac) mac->phylink_config.type = PHYLINK_NETDEV; phylink = phylink_create(&mac->phylink_config, - of_fwnode_handle(dpmac_node), mac->if_mode, + dpmac_node, mac->if_mode, &dpaa2_mac_phylink_ops); if (IS_ERR(phylink)) { err = PTR_ERR(phylink); @@ -338,13 +353,14 @@ int dpaa2_mac_connect(struct dpaa2_mac *mac) if (mac->pcs) phylink_set_pcs(mac->phylink, &mac->pcs->pcs); - err = phylink_of_phy_connect(mac->phylink, dpmac_node, 0); + err = phylink_fwnode_phy_connect(mac->phylink, dpmac_node, 0); if (err) { - netdev_err(net_dev, "phylink_of_phy_connect() = %d\n", err); + netdev_err(net_dev, "phylink_fwnode_phy_connect() = %d\n", err); goto err_phylink_destroy; } - of_node_put(dpmac_node); + if (is_of_node(dpmac_node)) + fwnode_handle_put(dpmac_node); return 0; @@ -353,7 +369,8 @@ int dpaa2_mac_connect(struct dpaa2_mac *mac) err_pcs_destroy: dpaa2_pcs_destroy(mac); err_put_node: - of_node_put(dpmac_node); + if (is_of_node(dpmac_node)) + fwnode_handle_put(dpmac_node); return err; }