diff options
Diffstat (limited to 'power/common.c')
| -rw-r--r-- | power/common.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/power/common.c b/power/common.c index 162ed39254..d4fc0aecee 100644 --- a/power/common.c +++ b/power/common.c @@ -856,4 +856,29 @@ void __attribute__((weak)) power_5v_enable(task_id_t tid, int enable) mutex_unlock(&pwr_5v_ctl_mtx); } + +#define P5_SYSJUMP_TAG 0x5005 /* "P5" */ +static void restore_enable_5v_state(void) +{ + const uint32_t *state; + int size; + + state = (const uint32_t *) system_get_jump_tag(P5_SYSJUMP_TAG, 0, + &size); + if (state && size == sizeof(pwr_5v_en_req)) { + mutex_lock(&pwr_5v_ctl_mtx); + pwr_5v_en_req |= *state; + mutex_unlock(&pwr_5v_ctl_mtx); + } +} +DECLARE_HOOK(HOOK_INIT, restore_enable_5v_state, HOOK_PRIO_FIRST); + +static void preserve_enable_5v_state(void) +{ + mutex_lock(&pwr_5v_ctl_mtx); + system_add_jump_tag(P5_SYSJUMP_TAG, 0, sizeof(pwr_5v_en_req), + &pwr_5v_en_req); + mutex_unlock(&pwr_5v_ctl_mtx); +} +DECLARE_HOOK(HOOK_SYSJUMP, preserve_enable_5v_state, HOOK_PRIO_DEFAULT); #endif /* defined(CONFIG_POWER_PP5000_CONTROL) */ |