1/*
 2 * PM domain driver for Keystone2 devices
 3 *
 4 * Copyright 2013 Texas Instruments, Inc.
 5 *	Santosh Shilimkar <santosh.shillimkar@ti.com>
 6 *
 7 * Based on Kevins work on DAVINCI SOCs
 8 *	Kevin Hilman <khilman@linaro.org>
 9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms and conditions of the GNU General Public License,
12 * version 2, as published by the Free Software Foundation.
13 */
14
15#include <linux/init.h>
16#include <linux/pm_runtime.h>
17#include <linux/pm_clock.h>
18#include <linux/platform_device.h>
19#include <linux/of.h>
20
21#include "keystone.h"
22
23static struct dev_pm_domain keystone_pm_domain = {
24	.ops = {
25		USE_PM_CLK_RUNTIME_OPS
26		USE_PLATFORM_PM_SLEEP_OPS
27	},
28};
29
30static struct pm_clk_notifier_block platform_domain_notifier = {
31	.pm_domain = &keystone_pm_domain,
32	.con_ids = { NULL },
33};
34
35static const struct of_device_id of_keystone_table[] = {
36	{.compatible = "ti,k2hk"},
37	{.compatible = "ti,k2e"},
38	{.compatible = "ti,k2l"},
39	{ /* end of list */ },
40};
41
42int __init keystone_pm_runtime_init(void)
43{
44	struct device_node *np;
45
46	np = of_find_matching_node(NULL, of_keystone_table);
47	if (!np)
48		return 0;
49
50	pm_clk_add_notifier(&platform_bus_type, &platform_domain_notifier);
51
52	return 0;
53}