1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Runtime PM support code for DaVinci
4 *
5 * Author: Kevin Hilman
6 *
7 * Copyright (C) 2012 Texas Instruments, Inc.
8 */
9#include <linux/init.h>
10#include <linux/pm_runtime.h>
11#include <linux/pm_clock.h>
12#include <linux/platform_device.h>
13#include <linux/of.h>
14
15static struct dev_pm_domain davinci_pm_domain = {
16 .ops = {
17 USE_PM_CLK_RUNTIME_OPS
18 USE_PLATFORM_PM_SLEEP_OPS
19 },
20};
21
22static struct pm_clk_notifier_block platform_bus_notifier = {
23 .pm_domain = &davinci_pm_domain,
24 .con_ids = { "fck", "master", "slave", NULL },
25};
26
27static int __init davinci_pm_runtime_init(void)
28{
29 if (of_have_populated_dt())
30 return 0;
31
32 /* Use pm_clk as fallback if we're not using genpd. */
33 pm_clk_add_notifier(bus: &platform_bus_type, clknb: &platform_bus_notifier);
34
35 return 0;
36}
37core_initcall(davinci_pm_runtime_init);
38

source code of linux/arch/arm/mach-davinci/pm_domain.c