diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2012-07-05 12:26:31 +0400 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2012-07-06 22:40:17 +0400 |
| commit | 802a5639aa7041b27cb865d3be289cd8afe3387b (patch) | |
| tree | 07758785d8c128290babef0de2b47fd475210a59 /arch | |
| parent | 8459293c27bcd13aabacb7ee8097f6818f2ceedb (diff) | |
| download | linux-802a5639aa7041b27cb865d3be289cd8afe3387b.tar.xz | |
ARM: shmobile: r8a7740: add A3SP pm domain support
This patch adds basic A3SP pm domain support.
Now, below devices can be controled by PM
DMAC1/2/3, IPMMU, DDM, FLCTL, SYS-HPB, BBIF1, MSIOF1/2,
SCIFA,SCIFB, IIC1, IrDA, USBH, USBDMAC, SDHI0/1/2, TPU,
DREQPAK (Sys), MMCIF, RSPI, SIM, USBF
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')
| -rw-r--r-- | arch/arm/mach-shmobile/include/mach/r8a7740.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/pm-r8a7740.c | 19 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/setup-r8a7740.c | 16 |
3 files changed, 36 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/include/mach/r8a7740.h b/arch/arm/mach-shmobile/include/mach/r8a7740.h index e8c87e92a60d..a5691cf38475 100644 --- a/arch/arm/mach-shmobile/include/mach/r8a7740.h +++ b/arch/arm/mach-shmobile/include/mach/r8a7740.h @@ -608,6 +608,7 @@ enum { #ifdef CONFIG_PM extern struct rmobile_pm_domain r8a7740_pd_a4s; +extern struct rmobile_pm_domain r8a7740_pd_a3sp; #endif /* CONFIG_PM */ #endif /* __ASM_R8A7740_H__ */ diff --git a/arch/arm/mach-shmobile/pm-r8a7740.c b/arch/arm/mach-shmobile/pm-r8a7740.c index d2fe81570a74..de7c6214ce63 100644 --- a/arch/arm/mach-shmobile/pm-r8a7740.c +++ b/arch/arm/mach-shmobile/pm-r8a7740.c @@ -8,6 +8,7 @@ * 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 @@ -27,4 +28,22 @@ struct rmobile_pm_domain r8a7740_pd_a4s = { .no_debug = true, .suspend = r8a7740_pd_a4s_suspend, }; + +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; +} + +struct rmobile_pm_domain r8a7740_pd_a3sp = { + .genpd.name = "A3SP", + .bit_shift = 11, + .gov = &pm_domain_always_on_gov, + .no_debug = true, + .suspend = r8a7740_pd_a3sp_suspend, +}; + #endif /* CONFIG_PM */ diff --git a/arch/arm/mach-shmobile/setup-r8a7740.c b/arch/arm/mach-shmobile/setup-r8a7740.c index c37ad75151f3..59c794122804 100644 --- a/arch/arm/mach-shmobile/setup-r8a7740.c +++ b/arch/arm/mach-shmobile/setup-r8a7740.c @@ -674,12 +674,28 @@ void __init r8a7740_add_standard_devices(void) /* PM domain */ rmobile_init_pm_domain(&r8a7740_pd_a4s); + rmobile_init_pm_domain(&r8a7740_pd_a3sp); + + rmobile_pm_add_subdomain(&r8a7740_pd_a4s, &r8a7740_pd_a3sp); /* add devices */ platform_add_devices(r8a7740_early_devices, ARRAY_SIZE(r8a7740_early_devices)); platform_add_devices(r8a7740_late_devices, ARRAY_SIZE(r8a7740_late_devices)); + + /* add devices to PM domain */ + + rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scif0_device); + rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scif1_device); + rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scif2_device); + rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scif3_device); + rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scif4_device); + rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scif5_device); + rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scif6_device); + rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scif7_device); + rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scifb_device); + rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &i2c1_device); } static void __init r8a7740_earlytimer_init(void) |