diff options
author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2012-07-05 08:28:32 (GMT) |
---|---|---|
committer | Rafael J. Wysocki <rjw@sisk.pl> | 2012-07-06 18:53:38 (GMT) |
commit | b9299a72702adc6d4d52a7425689255784431daa (patch) | |
tree | 34a87868f69cf5dd4758556c0757a1a0725d3539 /arch/arm/mach-shmobile/pm-sh7372.c | |
parent | de5c094a902d58eb9372aa648c6a7c22cff129fd (diff) | |
download | linux-b9299a72702adc6d4d52a7425689255784431daa.tar.xz |
ARM: shmobile: sh7372: add pm-rmobile domain support
This patch adds pm-rmobile common API base PM domain.
sh7372 CPU/platform will switch to using it from
original implementation
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'arch/arm/mach-shmobile/pm-sh7372.c')
-rw-r--r-- | arch/arm/mach-shmobile/pm-sh7372.c | 84 |
1 files changed, 82 insertions, 2 deletions
diff --git a/arch/arm/mach-shmobile/pm-sh7372.c b/arch/arm/mach-shmobile/pm-sh7372.c index a38be7f..3b131c7 100644 --- a/arch/arm/mach-shmobile/pm-sh7372.c +++ b/arch/arm/mach-shmobile/pm-sh7372.c @@ -26,6 +26,7 @@ #include <asm/suspend.h> #include <mach/common.h> #include <mach/sh7372.h> +#include <mach/pm-rmobile.h> /* DBG */ #define DBGREG1 0xe6100020 @@ -290,6 +291,85 @@ struct sh7372_pm_domain sh7372_a3sg = { .genpd.name = "A3SG", .bit_shift = 13, }; + +struct rmobile_pm_domain sh7372_pd_a4lc = { + .genpd.name = "A4LC", + .bit_shift = 1, +}; + +struct rmobile_pm_domain sh7372_pd_a4mp = { + .genpd.name = "A4MP", + .bit_shift = 2, +}; + +struct rmobile_pm_domain sh7372_pd_d4 = { + .genpd.name = "D4", + .bit_shift = 3, +}; + +static int sh7372_a4r_pd_suspend(void) +{ + sh7372_intcs_suspend(); + __raw_writel(0x300fffff, WUPRMSK); /* avoid wakeup */ + return 0; +} + +struct rmobile_pm_domain sh7372_pd_a4r = { + .genpd.name = "A4R", + .bit_shift = 5, + .suspend = sh7372_a4r_pd_suspend, + .resume = sh7372_intcs_resume, +}; + +struct rmobile_pm_domain sh7372_pd_a3rv = { + .genpd.name = "A3RV", + .bit_shift = 6, +}; + +struct rmobile_pm_domain sh7372_pd_a3ri = { + .genpd.name = "A3RI", + .bit_shift = 8, +}; + +static int sh7372_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; +} + +struct rmobile_pm_domain sh7372_pd_a4s = { + .genpd.name = "A4S", + .bit_shift = 10, + .gov = &pm_domain_always_on_gov, + .no_debug = true, + .suspend = sh7372_pd_a4s_suspend, +}; + +static int sh7372_a3sp_pd_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; +} + +struct rmobile_pm_domain sh7372_pd_a3sp = { + .genpd.name = "A3SP", + .bit_shift = 11, + .gov = &pm_domain_always_on_gov, + .no_debug = true, + .suspend = sh7372_a3sp_pd_suspend, +}; + +struct rmobile_pm_domain sh7372_pd_a3sg = { + .genpd.name = "A3SG", + .bit_shift = 13, +}; + #endif /* CONFIG_PM */ #if defined(CONFIG_SUSPEND) || defined(CONFIG_CPU_IDLE) @@ -531,7 +611,7 @@ static int sh7372_enter_suspend(suspend_state_t suspend_state) /* check active clocks to determine potential wakeup sources */ if (sh7372_sysc_valid(&msk, &msk2)) { if (!console_suspend_enabled && - sh7372_a4s.genpd.status == GPD_STATE_POWER_OFF) { + sh7372_pd_a4s.genpd.status == GPD_STATE_POWER_OFF) { /* convert INTC mask/sense to SYSC mask/sense */ sh7372_setup_sysc(msk, msk2); @@ -565,7 +645,7 @@ static int sh7372_pm_notifier_fn(struct notifier_block *notifier, * executed during system suspend and resume, respectively, so * that those functions don't crash while accessing the INTCS. */ - pm_genpd_poweron(&sh7372_a4r.genpd); + pm_genpd_poweron(&sh7372_pd_a4r.genpd); break; case PM_POST_SUSPEND: pm_genpd_poweroff_unused(); |