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(bus: &platform_bus_type, clknb: &platform_bus_notifier); |
34 | |
35 | return 0; |
36 | } |
37 | core_initcall(davinci_pm_runtime_init); |
38 |