projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 8459293c KM |
1 | /* |
| 2 | * r8a7740 power management support | |
| 3 | * | |
| 4 | * Copyright (C) 2012 Renesas Solutions Corp. | |
| 5 | * Copyright (C) 2012 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | |
| 6 | * | |
| 7 | * This file is subject to the terms and conditions of the GNU General Public | |
| 8 | * License. See the file "COPYING" in the main directory of this archive | |
| 9 | * for more details. | |
| 10 | */ | |
| 802a5639 | 11 | #include <linux/console.h> |
| 8459293c KM |
12 | #include <mach/pm-rmobile.h> |
| 13 | ||
| 14 | #ifdef CONFIG_PM | |
| 15 | static int r8a7740_pd_a4s_suspend(void) | |
| 16 | { | |
| 17 | /* | |
| 18 | * The A4S domain contains the CPU core and therefore it should | |
| 19 | * only be turned off if the CPU is in use. | |
| 20 | */ | |
| 21 | return -EBUSY; | |
| 22 | } | |
| 23 | ||
| 802a5639 KM |
24 | static int r8a7740_pd_a3sp_suspend(void) |
| 25 | { | |
| 26 | /* | |
| 27 | * Serial consoles make use of SCIF hardware located in A3SP, | |
| 28 | * keep such power domain on if "no_console_suspend" is set. | |
| 29 | */ | |
| 30 | return console_suspend_enabled ? 0 : -EBUSY; | |
| 31 | } | |
| 32 | ||
| 7b567407 RW |
33 | static struct rmobile_pm_domain r8a7740_pm_domains[] = { |
| 34 | { | |
| 35 | .genpd.name = "A4S", | |
| 36 | .bit_shift = 10, | |
| 37 | .gov = &pm_domain_always_on_gov, | |
| 38 | .no_debug = true, | |
| 39 | .suspend = r8a7740_pd_a4s_suspend, | |
| 40 | }, | |
| 41 | { | |
| 42 | .genpd.name = "A3SP", | |
| 43 | .bit_shift = 11, | |
| 44 | .gov = &pm_domain_always_on_gov, | |
| 45 | .no_debug = true, | |
| 46 | .suspend = r8a7740_pd_a3sp_suspend, | |
| 47 | }, | |
| 48 | { | |
| 49 | .genpd.name = "A4LC", | |
| 50 | .bit_shift = 1, | |
| 51 | }, | |
| 802a5639 KM |
52 | }; |
| 53 | ||
| 7b567407 RW |
54 | void __init r8a7740_init_pm_domains(void) |
| 55 | { | |
| 56 | rmobile_init_domains(r8a7740_pm_domains, ARRAY_SIZE(r8a7740_pm_domains)); | |
| 57 | pm_genpd_add_subdomain_names("A4S", "A3SP"); | |
| 58 | } | |
| a330ce3c | 59 | |
| 8459293c | 60 | #endif /* CONFIG_PM */ |