diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2012-07-05 01:25:58 -0700 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2012-07-06 20:40:17 +0200 |
| commit | 8459293c27bcd13aabacb7ee8097f6818f2ceedb (patch) | |
| tree | d61c97e8d9b81ffe57df0d2c39d4ebdecda8b642 /arch/arm/mach-shmobile/pm-r8a7740.c | |
| parent | 444c5ed8d746140cd8f5591f708e5f1f84a9876e (diff) | |
| download | op-kernel-dev-8459293c27bcd13aabacb7ee8097f6818f2ceedb.zip op-kernel-dev-8459293c27bcd13aabacb7ee8097f6818f2ceedb.tar.gz | |
ARM: shmobile: r8a7740: add A4S pm domain support
This patch adds basic A4S pm domain support.
Now, below devices can be controled by PM
Common-SHwy, Common-HPB, BSC, MFI, MMFROM, HS-SHwy,
SYS-HPB, INTCA, DBSC, DDRPHY (Logic),
ATAPI, GbEther, AXI-bus
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 | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/pm-r8a7740.c b/arch/arm/mach-shmobile/pm-r8a7740.c new file mode 100644 index 0000000..d2fe815 --- /dev/null +++ b/arch/arm/mach-shmobile/pm-r8a7740.c @@ -0,0 +1,30 @@ +/* + * 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 <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; +} + +struct rmobile_pm_domain r8a7740_pd_a4s = { + .genpd.name = "A4S", + .bit_shift = 10, + .gov = &pm_domain_always_on_gov, + .no_debug = true, + .suspend = r8a7740_pd_a4s_suspend, +}; +#endif /* CONFIG_PM */ |
