diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2012-07-05 01:26:31 -0700 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2012-07-06 20:40:17 +0200 |
| commit | 802a5639aa7041b27cb865d3be289cd8afe3387b (patch) | |
| tree | 07758785d8c128290babef0de2b47fd475210a59 /arch/arm/mach-shmobile/pm-r8a7740.c | |
| parent | 8459293c27bcd13aabacb7ee8097f6818f2ceedb (diff) | |
| download | op-kernel-dev-802a5639aa7041b27cb865d3be289cd8afe3387b.zip op-kernel-dev-802a5639aa7041b27cb865d3be289cd8afe3387b.tar.gz | |
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/arm/mach-shmobile/pm-r8a7740.c')
| -rw-r--r-- | arch/arm/mach-shmobile/pm-r8a7740.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/pm-r8a7740.c b/arch/arm/mach-shmobile/pm-r8a7740.c index d2fe815..de7c621 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 */ |
