Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751276AbdLaL7E (ORCPT ); Sun, 31 Dec 2017 06:59:04 -0500 Received: from mail-lf0-f65.google.com ([209.85.215.65]:42556 "EHLO mail-lf0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751143AbdLaL67 (ORCPT ); Sun, 31 Dec 2017 06:58:59 -0500 X-Google-Smtp-Source: ACJfBotBLKhe9M6ScI6nPs4EG2VZOWyq6l/x594KvsVtGDvoED03JWAig4TvXmT8VHBHX64KpMzhWw== From: Marcin Wojtas To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org, linux-acpi@vger.kernel.org Cc: graeme.gregory@linaro.org, davem@davemloft.net, linux@armlinux.org.uk, rafael.j.wysocki@intel.com, andrew@lunn.ch, f.fainelli@gmail.com, antoine.tenart@free-electrons.com, thomas.petazzoni@free-electrons.com, gregory.clement@free-electrons.com, ezequiel.garcia@free-electrons.com, nadavh@marvell.com, neta@marvell.com, ard.biesheuvel@linaro.org, mw@semihalf.com, jaz@semihalf.com, tn@semihalf.com Subject: [net-next: PATCH v2 4/5] net: mvpp2: use device_*/fwnode_* APIs instead of of_* Date: Sun, 31 Dec 2017 12:58:39 +0100 Message-Id: <1514721520-18964-5-git-send-email-mw@semihalf.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1514721520-18964-1-git-send-email-mw@semihalf.com> References: <1514721520-18964-1-git-send-email-mw@semihalf.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 6172 Lines: 177 OF functions can be used only for the driver using DT. As a preparation for introducing ACPI support in mvpp2 driver, use struct fwnode_handle in order to obtain properties from the hardware description. Because there is no equivalent for for_each_available_child_of_node(), use device_for_each_child_node() and check the port availability inside the mvpp2_port_probe() routine. This patch replaces of_* function with device_*/fwnode_* where possible in the mvpp2. Signed-off-by: Marcin Wojtas --- drivers/net/ethernet/marvell/mvpp2.c | 47 +++++++++++--------- 1 file changed, 26 insertions(+), 21 deletions(-) diff --git a/drivers/net/ethernet/marvell/mvpp2.c b/drivers/net/ethernet/marvell/mvpp2.c index 7f42d90..537474f 100644 --- a/drivers/net/ethernet/marvell/mvpp2.c +++ b/drivers/net/ethernet/marvell/mvpp2.c @@ -932,6 +932,9 @@ struct mvpp2_port { struct mvpp2 *priv; + /* Firmware node associated to the port */ + struct fwnode_handle *fwnode; + /* Per-port registers' base address */ void __iomem *base; void __iomem *stats_base; @@ -7711,17 +7714,16 @@ static bool mvpp2_port_has_tx_irqs(struct mvpp2 *priv, } static void mvpp2_port_copy_mac_addr(struct net_device *dev, struct mvpp2 *priv, - struct device_node *port_node, + struct fwnode_handle *fwnode, char **mac_from) { struct mvpp2_port *port = netdev_priv(dev); char hw_mac_addr[ETH_ALEN] = {0}; - const char *dt_mac_addr; + char fw_mac_addr[ETH_ALEN]; - dt_mac_addr = of_get_mac_address(port_node); - if (dt_mac_addr && is_valid_ether_addr(dt_mac_addr)) { - *mac_from = "device tree"; - ether_addr_copy(dev->dev_addr, dt_mac_addr); + if (fwnode_get_mac_address(fwnode, fw_mac_addr, ETH_ALEN)) { + *mac_from = "firmware node"; + ether_addr_copy(dev->dev_addr, fw_mac_addr); return; } @@ -7740,13 +7742,14 @@ static void mvpp2_port_copy_mac_addr(struct net_device *dev, struct mvpp2 *priv, /* Ports initialization */ static int mvpp2_port_probe(struct platform_device *pdev, - struct device_node *port_node, + struct fwnode_handle *port_fwnode, struct mvpp2 *priv) { struct device_node *phy_node; struct phy *comphy; struct mvpp2_port *port; struct mvpp2_port_pcpu *port_pcpu; + struct device_node *port_node = to_of_node(port_fwnode); struct net_device *dev; struct resource *res; char *mac_from = ""; @@ -7757,6 +7760,10 @@ static int mvpp2_port_probe(struct platform_device *pdev, int phy_mode; int err, i, cpu; + /* Silently exit, if the port node turns out to be disabled. */ + if (!fwnode_device_is_available(port_fwnode)) + return 0; + has_tx_irqs = mvpp2_port_has_tx_irqs(priv, port_node); if (!has_tx_irqs) @@ -7773,7 +7780,7 @@ static int mvpp2_port_probe(struct platform_device *pdev, return -ENOMEM; phy_node = of_parse_phandle(port_node, "phy", 0); - phy_mode = of_get_phy_mode(port_node); + phy_mode = fwnode_get_phy_mode(port_fwnode); if (phy_mode < 0) { dev_err(&pdev->dev, "incorrect phy mode\n"); err = phy_mode; @@ -7789,7 +7796,7 @@ static int mvpp2_port_probe(struct platform_device *pdev, comphy = NULL; } - if (of_property_read_u32(port_node, "port-id", &id)) { + if (fwnode_property_read_u32(port_fwnode, "port-id", &id)) { err = -EINVAL; dev_err(&pdev->dev, "missing port-id value\n"); goto err_free_netdev; @@ -7820,7 +7827,7 @@ static int mvpp2_port_probe(struct platform_device *pdev, /* the link irq is optional */ port->link_irq = 0; - if (of_property_read_bool(port_node, "marvell,loopback")) + if (fwnode_property_read_bool(port_fwnode, "marvell,loopback")) port->flags |= MVPP2_F_LOOPBACK; port->id = id; @@ -7845,8 +7852,8 @@ static int mvpp2_port_probe(struct platform_device *pdev, MVPP21_MIB_COUNTERS_OFFSET + port->gop_id * MVPP21_MIB_COUNTERS_PORT_SZ; } else { - if (of_property_read_u32(port_node, "gop-port-id", - &port->gop_id)) { + if (fwnode_property_read_u32(port_fwnode, "gop-port-id", + &port->gop_id)) { err = -EINVAL; dev_err(&pdev->dev, "missing gop-port-id value\n"); goto err_deinit_qvecs; @@ -7876,7 +7883,7 @@ static int mvpp2_port_probe(struct platform_device *pdev, mutex_init(&port->gather_stats_lock); INIT_DELAYED_WORK(&port->stats_work, mvpp2_gather_hw_statistics); - mvpp2_port_copy_mac_addr(dev, priv, port_node, &mac_from); + mvpp2_port_copy_mac_addr(dev, priv, port_fwnode, &mac_from); port->tx_ring_size = MVPP2_MAX_TXD_DFLT; port->rx_ring_size = MVPP2_MAX_RXD_DFLT; @@ -8194,8 +8201,7 @@ static int mvpp2_init(struct platform_device *pdev, struct mvpp2 *priv) static int mvpp2_probe(struct platform_device *pdev) { - struct device_node *dn = pdev->dev.of_node; - struct device_node *port_node; + struct fwnode_handle *port_fwnode; struct mvpp2 *priv; struct resource *res; void __iomem *base; @@ -8315,8 +8321,8 @@ static int mvpp2_probe(struct platform_device *pdev) } /* Initialize ports */ - for_each_available_child_of_node(dn, port_node) { - err = mvpp2_port_probe(pdev, port_node, priv); + device_for_each_child_node(&pdev->dev, port_fwnode) { + err = mvpp2_port_probe(pdev, port_fwnode, priv); if (err < 0) goto err_port_probe; } @@ -8347,7 +8353,7 @@ static int mvpp2_probe(struct platform_device *pdev) err_port_probe: i = 0; - for_each_available_child_of_node(dn, port_node) { + device_for_each_child_node(&pdev->dev, port_fwnode) { if (priv->port_list[i]) mvpp2_port_remove(priv->port_list[i]); i++; @@ -8366,14 +8372,13 @@ static int mvpp2_probe(struct platform_device *pdev) static int mvpp2_remove(struct platform_device *pdev) { struct mvpp2 *priv = platform_get_drvdata(pdev); - struct device_node *dn = pdev->dev.of_node; - struct device_node *port_node; + struct fwnode_handle *port_fwnode; int i = 0; flush_workqueue(priv->stats_queue); destroy_workqueue(priv->stats_queue); - for_each_available_child_of_node(dn, port_node) { + device_for_each_child_node(&pdev->dev, port_fwnode) { if (priv->port_list[i]) { mutex_destroy(&priv->port_list[i]->gather_stats_lock); mvpp2_port_remove(priv->port_list[i]); -- 2.7.4