diff options
Diffstat (limited to 'drivers/net/ethernet/ibm/emac/rgmii.c')
| -rw-r--r-- | drivers/net/ethernet/ibm/emac/rgmii.c | 62 |
1 files changed, 17 insertions, 45 deletions
diff --git a/drivers/net/ethernet/ibm/emac/rgmii.c b/drivers/net/ethernet/ibm/emac/rgmii.c index 00f5999de3cf..b544dd8633b7 100644 --- a/drivers/net/ethernet/ibm/emac/rgmii.c +++ b/drivers/net/ethernet/ibm/emac/rgmii.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * drivers/net/ethernet/ibm/emac/rgmii.c * @@ -14,17 +15,13 @@ * Based on original work by * Matt Porter <mporter@kernel.crashing.org> * Copyright 2004 MontaVista Software, Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * */ #include <linux/slab.h> #include <linux/kernel.h> #include <linux/ethtool.h> +#include <linux/of.h> #include <linux/of_address.h> +#include <linux/platform_device.h> #include <asm/io.h> #include "emac.h" @@ -219,35 +216,28 @@ void *rgmii_dump_regs(struct platform_device *ofdev, void *buf) static int rgmii_probe(struct platform_device *ofdev) { - struct device_node *np = ofdev->dev.of_node; struct rgmii_instance *dev; - struct resource regs; - int rc; + int err; - rc = -ENOMEM; - dev = kzalloc(sizeof(struct rgmii_instance), GFP_KERNEL); - if (dev == NULL) - goto err_gone; + dev = devm_kzalloc(&ofdev->dev, sizeof(struct rgmii_instance), + GFP_KERNEL); + if (!dev) + return -ENOMEM; - mutex_init(&dev->lock); - dev->ofdev = ofdev; + err = devm_mutex_init(&ofdev->dev, &dev->lock); + if (err) + return err; - rc = -ENXIO; - if (of_address_to_resource(np, 0, ®s)) { - printk(KERN_ERR "%pOF: Can't get registers address\n", np); - goto err_free; - } + dev->ofdev = ofdev; - rc = -ENOMEM; - dev->base = (struct rgmii_regs __iomem *)ioremap(regs.start, - sizeof(struct rgmii_regs)); - if (dev->base == NULL) { - printk(KERN_ERR "%pOF: Can't map device registers!\n", np); - goto err_free; + dev->base = devm_platform_ioremap_resource(ofdev, 0); + if (IS_ERR(dev->base)) { + dev_err(&ofdev->dev, "can't map device registers"); + return PTR_ERR(dev->base); } /* Check for RGMII flags */ - if (of_get_property(ofdev->dev.of_node, "has-mdio", NULL)) + if (of_property_read_bool(ofdev->dev.of_node, "has-mdio")) dev->flags |= EMAC_RGMII_FLAG_HAS_MDIO; /* CAB lacks the right properties, fix this up */ @@ -269,23 +259,6 @@ static int rgmii_probe(struct platform_device *ofdev) platform_set_drvdata(ofdev, dev); return 0; - - err_free: - kfree(dev); - err_gone: - return rc; -} - -static int rgmii_remove(struct platform_device *ofdev) -{ - struct rgmii_instance *dev = platform_get_drvdata(ofdev); - - WARN_ON(dev->users != 0); - - iounmap(dev->base); - kfree(dev); - - return 0; } static const struct of_device_id rgmii_match[] = @@ -305,7 +278,6 @@ static struct platform_driver rgmii_driver = { .of_match_table = rgmii_match, }, .probe = rgmii_probe, - .remove = rgmii_remove, }; int __init rgmii_init(void) |