xref: /OK3568_Linux_fs/kernel/arch/mips/cobalt/buttons.c (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-or-later
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun  *  Cobalt buttons platform device.
4*4882a593Smuzhiyun  *
5*4882a593Smuzhiyun  *  Copyright (C) 2007  Yoichi Yuasa <yuasa@linux-mips.org>
6*4882a593Smuzhiyun  */
7*4882a593Smuzhiyun 
8*4882a593Smuzhiyun #include <linux/platform_device.h>
9*4882a593Smuzhiyun #include <linux/errno.h>
10*4882a593Smuzhiyun #include <linux/init.h>
11*4882a593Smuzhiyun 
12*4882a593Smuzhiyun static struct resource cobalt_buttons_resource __initdata = {
13*4882a593Smuzhiyun 	.start	= 0x1d000000,
14*4882a593Smuzhiyun 	.end	= 0x1d000003,
15*4882a593Smuzhiyun 	.flags	= IORESOURCE_MEM,
16*4882a593Smuzhiyun };
17*4882a593Smuzhiyun 
cobalt_add_buttons(void)18*4882a593Smuzhiyun static __init int cobalt_add_buttons(void)
19*4882a593Smuzhiyun {
20*4882a593Smuzhiyun 	struct platform_device *pd;
21*4882a593Smuzhiyun 	int error;
22*4882a593Smuzhiyun 
23*4882a593Smuzhiyun 	pd = platform_device_alloc("Cobalt buttons", -1);
24*4882a593Smuzhiyun 	if (!pd)
25*4882a593Smuzhiyun 		return -ENOMEM;
26*4882a593Smuzhiyun 
27*4882a593Smuzhiyun 	error = platform_device_add_resources(pd, &cobalt_buttons_resource, 1);
28*4882a593Smuzhiyun 	if (error)
29*4882a593Smuzhiyun 		goto err_free_device;
30*4882a593Smuzhiyun 
31*4882a593Smuzhiyun 	error = platform_device_add(pd);
32*4882a593Smuzhiyun 	if (error)
33*4882a593Smuzhiyun 		goto err_free_device;
34*4882a593Smuzhiyun 
35*4882a593Smuzhiyun 	return 0;
36*4882a593Smuzhiyun 
37*4882a593Smuzhiyun  err_free_device:
38*4882a593Smuzhiyun 	platform_device_put(pd);
39*4882a593Smuzhiyun 	return error;
40*4882a593Smuzhiyun }
41*4882a593Smuzhiyun device_initcall(cobalt_add_buttons);
42