From 8459293c27bcd13aabacb7ee8097f6818f2ceedb Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Thu, 5 Jul 2012 01:25:58 -0700 Subject: 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 Acked-by: Magnus Damm Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-shmobile/pm-r8a7740.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 arch/arm/mach-shmobile/pm-r8a7740.c (limited to 'arch/arm/mach-shmobile/pm-r8a7740.c') diff --git a/arch/arm/mach-shmobile/pm-r8a7740.c b/arch/arm/mach-shmobile/pm-r8a7740.c new file mode 100644 index 000000000000..d2fe81570a74 --- /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 + * + * 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 + +#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 */ -- cgit v1.2.3