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authorDmitry Osipenko <dmitry.osipenko@collabora.com>2022-05-10 02:32:30 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2022-05-19 20:30:31 +0300
commit98f30d0ecf79da8cf17a171fa4cf6eda7ba4dd71 (patch)
treeae1fc09589a558431e36d22160407f338efdc06d /drivers/acpi/sleep.c
parentbf8d73b934df8aa485dc4650d6d5dfe5a640af4b (diff)
downloadlinux-98f30d0ecf79da8cf17a171fa4cf6eda7ba4dd71.tar.xz
ACPI: power: Switch to sys-off handler API
Switch to sys-off API that replaces legacy pm_power_off callbacks, allowing us to remove global pm_* variables and support chaining of all restart and power-off modes consistently. Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/sleep.c')
-rw-r--r--drivers/acpi/sleep.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index c992e57b2c79..c3e3cee27f01 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -1023,20 +1023,22 @@ static void acpi_sleep_hibernate_setup(void)
static inline void acpi_sleep_hibernate_setup(void) {}
#endif /* !CONFIG_HIBERNATION */
-static void acpi_power_off_prepare(void)
+static int acpi_power_off_prepare(struct sys_off_data *data)
{
/* Prepare to power off the system */
acpi_sleep_prepare(ACPI_STATE_S5);
acpi_disable_all_gpes();
acpi_os_wait_events_complete();
+ return NOTIFY_DONE;
}
-static void acpi_power_off(void)
+static int acpi_power_off(struct sys_off_data *data)
{
/* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */
pr_debug("%s called\n", __func__);
local_irq_disable();
acpi_enter_sleep_state(ACPI_STATE_S5);
+ return NOTIFY_DONE;
}
int __init acpi_sleep_init(void)
@@ -1055,8 +1057,14 @@ int __init acpi_sleep_init(void)
if (acpi_sleep_state_supported(ACPI_STATE_S5)) {
sleep_states[ACPI_STATE_S5] = 1;
- pm_power_off_prepare = acpi_power_off_prepare;
- pm_power_off = acpi_power_off;
+
+ register_sys_off_handler(SYS_OFF_MODE_POWER_OFF_PREPARE,
+ SYS_OFF_PRIO_FIRMWARE,
+ acpi_power_off_prepare, NULL);
+
+ register_sys_off_handler(SYS_OFF_MODE_POWER_OFF,
+ SYS_OFF_PRIO_FIRMWARE,
+ acpi_power_off, NULL);
} else {
acpi_no_s5 = true;
}