diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-ux500/pm/suspend.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm/mach-ux500/pm/suspend.c b/arch/arm/mach-ux500/pm/suspend.c index 3a044831351..3a6437e421b 100644 --- a/arch/arm/mach-ux500/pm/suspend.c +++ b/arch/arm/mach-ux500/pm/suspend.c @@ -12,6 +12,7 @@ #include <linux/suspend.h> #include <linux/mfd/dbx500-prcmu.h> #include <linux/gpio/nomadik.h> +#include <linux/regulator/machine.h> #include <linux/regulator/ab8500-debug.h> #include <linux/regulator/dbx500-prcmu.h> #include <linux/mfd/dbx500-prcmu.h> @@ -24,6 +25,8 @@ static void (*pins_suspend_force)(void); static void (*pins_suspend_force_mux)(void); +static suspend_state_t suspend_state = PM_SUSPEND_ON; + void suspend_set_pins_force_fn(void (*force)(void), void (*force_mux)(void)) { pins_suspend_force = force; @@ -194,10 +197,22 @@ static int ux500_suspend_valid(suspend_state_t state) return state == PM_SUSPEND_MEM || state == PM_SUSPEND_STANDBY; } +static int ux500_suspend_prepare(void) +{ + int ret; + + ret = regulator_suspend_prepare(suspend_state); + if (ret < 0) + return ret; + + return 0; +} + static int ux500_suspend_prepare_late(void) { /* ESRAM to retention instead of OFF until ROM is fixed */ (void) prcmu_config_esram0_deep_sleep(ESRAM0_DEEP_SLEEP_STATE_RET); + ab8500_regulator_debug_force(); ux500_regulator_suspend_debug(); return 0; @@ -210,10 +225,16 @@ static void ux500_suspend_wake(void) (void) prcmu_config_esram0_deep_sleep(ESRAM0_DEEP_SLEEP_STATE_RET); } +static void ux500_suspend_finish(void) +{ + (void)regulator_suspend_finish(); +} + static int ux500_suspend_begin(suspend_state_t state) { (void) prcmu_qos_update_requirement(PRCMU_QOS_ARM_OPP, "suspend", 125); + suspend_state = state; return ux500_suspend_dbg_begin(state); } @@ -221,13 +242,16 @@ static void ux500_suspend_end(void) { (void) prcmu_qos_update_requirement(PRCMU_QOS_ARM_OPP, "suspend", 25); + suspend_state = PM_SUSPEND_ON; } static struct platform_suspend_ops ux500_suspend_ops = { .enter = ux500_suspend_enter, .valid = ux500_suspend_valid, + .prepare = ux500_suspend_prepare, .prepare_late = ux500_suspend_prepare_late, .wake = ux500_suspend_wake, + .finish = ux500_suspend_finish, .begin = ux500_suspend_begin, .end = ux500_suspend_end, }; |