| /* |
| * r8a7740 power management support |
| * |
| * Copyright (C) 2012 Renesas Solutions Corp. |
| * Copyright (C) 2012 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> |
| * |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file "COPYING" in the main directory of this archive |
| * for more details. |
| */ |
| #include <linux/console.h> |
| #include <mach/pm-rmobile.h> |
| |
| #ifdef CONFIG_PM |
| static int r8a7740_pd_a4s_suspend(void) |
| { |
| /* |
| * The A4S domain contains the CPU core and therefore it should |
| * only be turned off if the CPU is in use. |
| */ |
| return -EBUSY; |
| } |
| |
| static int r8a7740_pd_a3sp_suspend(void) |
| { |
| /* |
| * Serial consoles make use of SCIF hardware located in A3SP, |
| * keep such power domain on if "no_console_suspend" is set. |
| */ |
| return console_suspend_enabled ? 0 : -EBUSY; |
| } |
| |
| static struct rmobile_pm_domain r8a7740_pm_domains[] = { |
| { |
| .genpd.name = "A4S", |
| .bit_shift = 10, |
| .gov = &pm_domain_always_on_gov, |
| .no_debug = true, |
| .suspend = r8a7740_pd_a4s_suspend, |
| }, |
| { |
| .genpd.name = "A3SP", |
| .bit_shift = 11, |
| .gov = &pm_domain_always_on_gov, |
| .no_debug = true, |
| .suspend = r8a7740_pd_a3sp_suspend, |
| }, |
| { |
| .genpd.name = "A4LC", |
| .bit_shift = 1, |
| }, |
| }; |
| |
| void __init r8a7740_init_pm_domains(void) |
| { |
| rmobile_init_domains(r8a7740_pm_domains, ARRAY_SIZE(r8a7740_pm_domains)); |
| pm_genpd_add_subdomain_names("A4S", "A3SP"); |
| } |
| |
| #endif /* CONFIG_PM */ |
