1/*
2 * Runtime PM support code for DaVinci
3 *
4 * Author: Kevin Hilman
5 *
6 * Copyright (C) 2012 Texas Instruments, Inc.
7 *
8 * This file is licensed under the terms of the GNU General Public
9 * License version 2. This program is licensed "as is" without any
10 * warranty of any kind, whether express or implied.
11 */
12#include <linux/init.h>
13#include <linux/pm_runtime.h>
14#include <linux/pm_clock.h>
15#include <linux/platform_device.h>
16#include <linux/of.h>
17
18static struct dev_pm_domain davinci_pm_domain = {
19	.ops = {
20		USE_PM_CLK_RUNTIME_OPS
21		USE_PLATFORM_PM_SLEEP_OPS
22	},
23};
24
25static struct pm_clk_notifier_block platform_bus_notifier = {
26	.pm_domain = &davinci_pm_domain,
27	.con_ids = { "fck", "master", "slave", NULL },
28};
29
30static int __init davinci_pm_runtime_init(void)
31{
32	if (of_have_populated_dt())
33		return 0;
34
35	/* Use pm_clk as fallback if we're not using genpd. */
36	pm_clk_add_notifier(&platform_bus_type, &platform_bus_notifier);
37
38	return 0;
39}
40core_initcall(davinci_pm_runtime_init);
41