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a7eb54d440
The function returned zero unconditionally, so the function returning an int is something between useless and irritating. With the goal to make platform drivers' remove function return void, it's helpful to convert the function accordingly. This converts several drivers to the new .remove_new callback that was introduced to smoothen the platform driver conversion. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com> Acked-by: Serge Semin <fancer.lancer@gmail.com> Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru> Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
99 lines
2.4 KiB
C
99 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* OF-platform PATA driver
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*
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* Copyright (c) 2007 MontaVista Software, Inc.
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* Anton Vorontsov <avorontsov@ru.mvista.com>
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/of_address.h>
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#include <linux/platform_device.h>
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#include <linux/ata_platform.h>
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#include <linux/libata.h>
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#define DRV_NAME "pata_of_platform"
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static const struct scsi_host_template pata_platform_sht = {
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ATA_PIO_SHT(DRV_NAME),
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};
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static int pata_of_platform_probe(struct platform_device *ofdev)
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{
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int ret;
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struct device_node *dn = ofdev->dev.of_node;
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struct resource io_res;
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struct resource ctl_res;
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struct resource irq_res;
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unsigned int reg_shift = 0;
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int pio_mode = 0;
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int pio_mask;
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bool use16bit;
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int irq;
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ret = of_address_to_resource(dn, 0, &io_res);
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if (ret) {
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dev_err(&ofdev->dev, "can't get IO address from "
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"device tree\n");
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return -EINVAL;
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}
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ret = of_address_to_resource(dn, 1, &ctl_res);
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if (ret) {
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dev_err(&ofdev->dev, "can't get CTL address from "
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"device tree\n");
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return -EINVAL;
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}
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memset(&irq_res, 0, sizeof(irq_res));
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irq = platform_get_irq_optional(ofdev, 0);
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if (irq < 0 && irq != -ENXIO)
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return irq;
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if (irq > 0) {
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irq_res.start = irq;
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irq_res.end = irq;
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}
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of_property_read_u32(dn, "reg-shift", ®_shift);
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if (!of_property_read_u32(dn, "pio-mode", &pio_mode)) {
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if (pio_mode > 6) {
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dev_err(&ofdev->dev, "invalid pio-mode\n");
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return -EINVAL;
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}
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} else {
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dev_info(&ofdev->dev, "pio-mode unspecified, assuming PIO0\n");
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}
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use16bit = of_property_read_bool(dn, "ata-generic,use16bit");
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pio_mask = 1 << pio_mode;
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pio_mask |= (1 << pio_mode) - 1;
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return __pata_platform_probe(&ofdev->dev, &io_res, &ctl_res, irq > 0 ? &irq_res : NULL,
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reg_shift, pio_mask, &pata_platform_sht,
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use16bit);
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}
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static const struct of_device_id pata_of_platform_match[] = {
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{ .compatible = "ata-generic", },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(of, pata_of_platform_match);
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static struct platform_driver pata_of_platform_driver = {
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.driver = {
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.name = DRV_NAME,
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.of_match_table = pata_of_platform_match,
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},
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.probe = pata_of_platform_probe,
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.remove_new = ata_platform_remove_one,
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};
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module_platform_driver(pata_of_platform_driver);
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MODULE_DESCRIPTION("OF-platform PATA driver");
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MODULE_AUTHOR("Anton Vorontsov <avorontsov@ru.mvista.com>");
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MODULE_LICENSE("GPL");
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