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| author |   Olof Johansson <olof@lixom.net> | 2014-01-08 22:10:21 -0800 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2014-01-08 23:02:26 -0800 |
| commit | 51f37801b44fb5beb7f651e6f74e0dd90fd159c9 (patch) | |
| tree | 5b4e81fe8dbc7086b2c248d1b2e16584754f2e5e /arch | |
| parent | Merge tag 'bcm-for-3.14-soc' of git://github.com/broadcom/bcm11351 into next/soc (diff) | |
| parent | ARM: ux500: Enable system suspend with WFI support (diff) | |
| download | linux-dev-51f37801b44fb5beb7f651e6f74e0dd90fd159c9.tar.xz linux-dev-51f37801b44fb5beb7f651e6f74e0dd90fd159c9.zip | |
Merge tag 'ux500-core-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into next/soc
From Linus Walleij:
Ux500 core patches for the v3.14 series:
- Enable PRINTK_TIME
- Enable suspend with WFI
* tag 'ux500-core-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
ARM: ux500: Enable system suspend with WFI support
ARM: ux500: turn on PRINTK_TIME in u8500_defconfig
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/configs/u8500_defconfig | 1 | ||||
| -rw-r--r-- | arch/arm/mach-ux500/pm.c | 27 |
2 files changed, 28 insertions, 0 deletions
diff --git a/arch/arm/configs/u8500_defconfig b/arch/arm/configs/u8500_defconfig index c6ebc184bf68..65f77885c167 100644 --- a/arch/arm/configs/u8500_defconfig +++ b/arch/arm/configs/u8500_defconfig @@ -119,6 +119,7 @@ CONFIG_NFS_FS=y CONFIG_ROOT_NFS=y CONFIG_NLS_CODEPAGE_437=y CONFIG_NLS_ISO8859_1=y +CONFIG_PRINTK_TIME=y CONFIG_DEBUG_INFO=y CONFIG_DEBUG_FS=y CONFIG_MAGIC_SYSRQ=y diff --git a/arch/arm/mach-ux500/pm.c b/arch/arm/mach-ux500/pm.c index 1a468f0fd22e..b80a9a2e356e 100644 --- a/arch/arm/mach-ux500/pm.c +++ b/arch/arm/mach-ux500/pm.c @@ -3,6 +3,8 @@ * Author: Rickard Andersson <rickard.andersson@stericsson.com> for * ST-Ericsson. * Author: Daniel Lezcano <daniel.lezcano@linaro.org> for Linaro. + * Author: Ulf Hansson <ulf.hansson@linaro.org> for Linaro. + * * License terms: GNU General Public License (GPL) version 2 * */ @@ -11,6 +13,7 @@ #include <linux/irqchip/arm-gic.h> #include <linux/delay.h> #include <linux/io.h> +#include <linux/suspend.h> #include <linux/platform_data/arm-ux500-pm.h> #include "db8500-regs.h" @@ -152,6 +155,27 @@ int prcmu_copy_gic_settings(void) return 0; } +#ifdef CONFIG_SUSPEND +static int ux500_suspend_enter(suspend_state_t state) +{ + cpu_do_idle(); + return 0; +} + +static int ux500_suspend_valid(suspend_state_t state) +{ + return state == PM_SUSPEND_MEM || state == PM_SUSPEND_STANDBY; +} + +static const struct platform_suspend_ops ux500_suspend_ops = { + .enter = ux500_suspend_enter, + .valid = ux500_suspend_valid, +}; +#define UX500_SUSPEND_OPS (&ux500_suspend_ops) +#else +#define UX500_SUSPEND_OPS NULL +#endif + void __init ux500_pm_init(u32 phy_base, u32 size) { prcmu_base = ioremap(phy_base, size); @@ -164,4 +188,7 @@ void __init ux500_pm_init(u32 phy_base, u32 size) * This will make sure that the GIC is correctly configured. */ prcmu_gic_recouple(); + + /* Set up ux500 suspend callbacks. */ + suspend_set_ops(UX500_SUSPEND_OPS); } |