diff options
Diffstat (limited to 'drivers/net/ethernet/ibm/emac/zmii.c')
| -rw-r--r-- | drivers/net/ethernet/ibm/emac/zmii.c | 63 |
1 files changed, 18 insertions, 45 deletions
diff --git a/drivers/net/ethernet/ibm/emac/zmii.c b/drivers/net/ethernet/ibm/emac/zmii.c index fdcc734541fe..69ca6065de1c 100644 --- a/drivers/net/ethernet/ibm/emac/zmii.c +++ b/drivers/net/ethernet/ibm/emac/zmii.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * drivers/net/ethernet/ibm/emac/zmii.c * @@ -14,17 +15,13 @@ * Based on original work by * Armin Kuster <akuster@mvista.com> * Copyright 2001 MontaVista Softare 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/mod_devicetable.h> #include <linux/of_address.h> +#include <linux/platform_device.h> #include <asm/io.h> #include "emac.h" @@ -83,7 +80,8 @@ static inline u32 zmii_mode_mask(int mode, int input) } } -int zmii_attach(struct platform_device *ofdev, int input, int *mode) +int zmii_attach(struct platform_device *ofdev, int input, + phy_interface_t *mode) { struct zmii_instance *dev = platform_get_drvdata(ofdev); struct zmii_regs __iomem *p = dev->base; @@ -234,32 +232,25 @@ void *zmii_dump_regs(struct platform_device *ofdev, void *buf) static int zmii_probe(struct platform_device *ofdev) { - struct device_node *np = ofdev->dev.of_node; struct zmii_instance *dev; - struct resource regs; - int rc; + int err; - rc = -ENOMEM; - dev = kzalloc(sizeof(struct zmii_instance), GFP_KERNEL); - if (dev == NULL) - goto err_gone; + dev = devm_kzalloc(&ofdev->dev, sizeof(struct zmii_instance), + GFP_KERNEL); + if (!dev) + return -ENOMEM; + + err = devm_mutex_init(&ofdev->dev, &dev->lock); + if (err) + return err; - mutex_init(&dev->lock); dev->ofdev = ofdev; dev->mode = PHY_INTERFACE_MODE_NA; - rc = -ENXIO; - if (of_address_to_resource(np, 0, ®s)) { - printk(KERN_ERR "%pOF: Can't get registers address\n", np); - goto err_free; - } - - rc = -ENOMEM; - dev->base = (struct zmii_regs __iomem *)ioremap(regs.start, - sizeof(struct zmii_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); } /* We may need FER value for autodetection later */ @@ -273,23 +264,6 @@ static int zmii_probe(struct platform_device *ofdev) platform_set_drvdata(ofdev, dev); return 0; - - err_free: - kfree(dev); - err_gone: - return rc; -} - -static int zmii_remove(struct platform_device *ofdev) -{ - struct zmii_instance *dev = platform_get_drvdata(ofdev); - - WARN_ON(dev->users != 0); - - iounmap(dev->base); - kfree(dev); - - return 0; } static const struct of_device_id zmii_match[] = @@ -310,7 +284,6 @@ static struct platform_driver zmii_driver = { .of_match_table = zmii_match, }, .probe = zmii_probe, - .remove = zmii_remove, }; int __init zmii_init(void) |