diff options
Diffstat (limited to 'arch/arm/mach-ux500/pm.c')
| -rw-r--r-- | arch/arm/mach-ux500/pm.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/arm/mach-ux500/pm.c b/arch/arm/mach-ux500/pm.c index 1a468f0fd22..b80a9a2e356 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); } |