projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| f14c4f14 | 1 | /* |
| d03299ee | 2 | * Runtime PM support code |
| f14c4f14 MD |
3 | * |
| 4 | * Copyright (C) 2009-2010 Magnus Damm | |
| 5 | * | |
| 6 | * This file is subject to the terms and conditions of the GNU General Public | |
| 7 | * License. See the file "COPYING" in the main directory of this archive | |
| 8 | * for more details. | |
| 9 | */ | |
| 10 | ||
| 11 | #include <linux/init.h> | |
| 12 | #include <linux/kernel.h> | |
| 13 | #include <linux/io.h> | |
| 14 | #include <linux/pm_runtime.h> | |
| 79620414 | 15 | #include <linux/pm_domain.h> |
| b5e8d269 | 16 | #include <linux/pm_clock.h> |
| f14c4f14 MD |
17 | #include <linux/platform_device.h> |
| 18 | #include <linux/clk.h> | |
| 19 | #include <linux/sh_clk.h> | |
| 20 | #include <linux/bitmap.h> | |
| 1d2b71f6 | 21 | #include <linux/slab.h> |
| f14c4f14 MD |
22 | |
| 23 | #ifdef CONFIG_PM_RUNTIME | |
| 564b905a | 24 | static struct dev_pm_domain default_pm_domain = { |
| 38ade3a1 | 25 | .ops = { |
| 3d5c3036 RW |
26 | .runtime_suspend = pm_clk_suspend, |
| 27 | .runtime_resume = pm_clk_resume, | |
| 38ade3a1 RW |
28 | USE_PLATFORM_PM_SLEEP_OPS |
| 29 | }, | |
| 30 | }; | |
| 31 | ||
| 564b905a | 32 | #define DEFAULT_PM_DOMAIN_PTR (&default_pm_domain) |
| 1d2b71f6 | 33 | |
| 85eb8c8d | 34 | #else |
| f14c4f14 | 35 | |
| 564b905a | 36 | #define DEFAULT_PM_DOMAIN_PTR NULL |
| f14c4f14 MD |
37 | |
| 38 | #endif /* CONFIG_PM_RUNTIME */ | |
| 39 | ||
| 85eb8c8d | 40 | static struct pm_clk_notifier_block platform_bus_notifier = { |
| 564b905a | 41 | .pm_domain = DEFAULT_PM_DOMAIN_PTR, |
| 85eb8c8d | 42 | .con_ids = { NULL, }, |
| f14c4f14 MD |
43 | }; |
| 44 | ||
| 3c90c55d GU |
45 | static bool default_pm_on; |
| 46 | ||
| f14c4f14 MD |
47 | static int __init sh_pm_runtime_init(void) |
| 48 | { | |
| 3c90c55d GU |
49 | if (IS_ENABLED(CONFIG_ARCH_SHMOBILE_MULTI)) { |
| 50 | if (!of_machine_is_compatible("renesas,emev2") && | |
| 51 | !of_machine_is_compatible("renesas,r7s72100") && | |
| 52 | !of_machine_is_compatible("renesas,r8a73a4") && | |
| 53 | !of_machine_is_compatible("renesas,r8a7740") && | |
| 54 | !of_machine_is_compatible("renesas,r8a7778") && | |
| 55 | !of_machine_is_compatible("renesas,r8a7779") && | |
| 56 | !of_machine_is_compatible("renesas,r8a7790") && | |
| 57 | !of_machine_is_compatible("renesas,r8a7791") && | |
| 58 | !of_machine_is_compatible("renesas,sh7372") && | |
| 59 | !of_machine_is_compatible("renesas,sh73a0")) | |
| 60 | return 0; | |
| 61 | } | |
| 62 | ||
| 63 | default_pm_on = true; | |
| 3d5c3036 | 64 | pm_clk_add_notifier(&platform_bus_type, &platform_bus_notifier); |
| f14c4f14 MD |
65 | return 0; |
| 66 | } | |
| 67 | core_initcall(sh_pm_runtime_init); | |
| 999a4d2a | 68 | |
| 999a4d2a MD |
69 | static int __init sh_pm_runtime_late_init(void) |
| 70 | { | |
| 3c90c55d GU |
71 | if (default_pm_on) |
| 72 | pm_genpd_poweroff_unused(); | |
| 999a4d2a MD |
73 | return 0; |
| 74 | } | |
| 75 | late_initcall(sh_pm_runtime_late_init); |