diff options
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/bus.c | 15 | ||||
| -rw-r--r-- | drivers/acpi/power.c | 4 | ||||
| -rw-r--r-- | drivers/acpi/thermal.c | 28 |
3 files changed, 27 insertions, 20 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index fd37e19360d0..0c93cd400ddb 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -199,15 +199,14 @@ int acpi_bus_set_power(acpi_handle handle, int state) * Get device's current power state if it's unknown * This means device power state isn't initialized or previous setting failed */ - if (!device->flags.force_power_state) { - if (device->power.state == ACPI_STATE_UNKNOWN) - acpi_bus_get_power(device->handle, &device->power.state); - if (state == device->power.state) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n", - state)); - return 0; - } + if ((device->power.state == ACPI_STATE_UNKNOWN) || device->flags.force_power_state) + acpi_bus_get_power(device->handle, &device->power.state); + if ((state == device->power.state) && !device->flags.force_power_state) { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n", + state)); + return 0; } + if (!device->power.states[state].flags.valid) { printk(KERN_WARNING PREFIX "Device does not support D%d\n", state); return -ENODEV; diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index 00d6118ff1ef..1ef338545dfe 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -455,6 +455,10 @@ int acpi_power_transition(struct acpi_device *device, int state) goto end; } + if (device->power.state == state) { + goto end; + } + /* * Then we dereference all power resources used in the current list. */ diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 15022bc86336..0ae8b9310cbf 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -1356,28 +1356,32 @@ static int acpi_thermal_remove(struct acpi_device *device, int type) static int acpi_thermal_resume(struct acpi_device *device) { struct acpi_thermal *tz = NULL; - int i; + int i, j, power_state, result; + if (!device || !acpi_driver_data(device)) return -EINVAL; tz = acpi_driver_data(device); - acpi_thermal_get_temperature(tz); - for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++) { - if (tz->trips.active[i].flags.valid) { - tz->temperature = tz->trips.active[i].temperature; - tz->trips.active[i].flags.enabled = 0; - - acpi_thermal_active(tz); - - tz->state.active |= tz->trips.active[i].flags.enabled; - tz->state.active_index = i; + if (!(&tz->trips.active[i])) + break; + if (!tz->trips.active[i].flags.valid) + break; + tz->trips.active[i].flags.enabled = 1; + for (j = 0; j < tz->trips.active[i].devices.count; j++) { + result = acpi_bus_get_power(tz->trips.active[i].devices. + handles[j], &power_state); + if (result || (power_state != ACPI_STATE_D0)) { + tz->trips.active[i].flags.enabled = 0; + break; + } } + tz->state.active |= tz->trips.active[i].flags.enabled; } - acpi_thermal_check(tz); + acpi_thermal_check(tz); return AE_OK; } |