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
15 static struct dev_pm_domain davinci_pm_domain = {
16 .ops = {
17 USE_PM_CLK_RUNTIME_OPS
18 USE_PLATFORM_PM_SLEEP_OPS
19 },
20 };
21
22 static struct pm_clk_notifier_block platform_bus_notifier = {
23 .pm_domain = &davinci_pm_domain,
24 .con_ids = { "fck", "master", "slave", NULL },
25 };
26
27 static 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(&platform_bus_type, &platform_bus_notifier);
34
35 return 0;
36 }
37 core_initcall(davinci_pm_runtime_init);
38
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