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v0.5.2
https://github.com/torvalds/linux
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Tip revision: 2585cf9dfaaddf00b069673f27bb3f8530e2039c authored by Linus Torvalds on 12 December 2021, 22:53:01 UTC
Linux 5.16-rc5
Tip revision: 2585cf9
buttons.c
// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  Cobalt buttons platform device.
 *
 *  Copyright (C) 2007  Yoichi Yuasa <yuasa@linux-mips.org>
 */

#include <linux/platform_device.h>
#include <linux/errno.h>
#include <linux/init.h>

static struct resource cobalt_buttons_resource __initdata = {
	.start	= 0x1d000000,
	.end	= 0x1d000003,
	.flags	= IORESOURCE_MEM,
};

static __init int cobalt_add_buttons(void)
{
	struct platform_device *pd;
	int error;

	pd = platform_device_alloc("Cobalt buttons", -1);
	if (!pd)
		return -ENOMEM;

	error = platform_device_add_resources(pd, &cobalt_buttons_resource, 1);
	if (error)
		goto err_free_device;

	error = platform_device_add(pd);
	if (error)
		goto err_free_device;

	return 0;

 err_free_device:
	platform_device_put(pd);
	return error;
}
device_initcall(cobalt_add_buttons);
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