OpenCloudOS-Kernel/arch/mips/cobalt/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);