diff options
| -rw-r--r-- | drivers/acpi/bus.c | 18 | ||||
| -rw-r--r-- | include/acpi/acpi_bus.h | 1 |
2 files changed, 13 insertions, 6 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 0e1441cc4d7f..6c9b16c16660 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -182,7 +182,11 @@ EXPORT_SYMBOL(acpi_bus_get_private_data); Power Management -------------------------------------------------------------------------- */ -static const char *state_string(int state) +/** + * acpi_power_state_string - String representation of ACPI device power state. + * @state: ACPI device power state to return the string representation of. + */ +const char *acpi_power_state_string(int state) { switch (state) { case ACPI_STATE_D0: @@ -260,7 +264,7 @@ int acpi_device_get_power(struct acpi_device *device, int *state) out: ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] power state is %s\n", - device->pnp.bus_id, state_string(*state))); + device->pnp.bus_id, acpi_power_state_string(*state))); return 0; } @@ -288,13 +292,13 @@ int acpi_device_set_power(struct acpi_device *device, int state) if (state == device->power.state) { ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at %s\n", - state_string(state))); + acpi_power_state_string(state))); return 0; } if (!device->power.states[state].flags.valid) { printk(KERN_WARNING PREFIX "Device does not support %s\n", - state_string(state)); + acpi_power_state_string(state)); return -ENODEV; } if (device->parent && (state < device->parent->power.state)) { @@ -362,12 +366,14 @@ int acpi_device_set_power(struct acpi_device *device, int state) if (result) printk(KERN_WARNING PREFIX "Device [%s] failed to transition to %s\n", - device->pnp.bus_id, state_string(state)); + device->pnp.bus_id, + acpi_power_state_string(state)); else { device->power.state = state; ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] transitioned to %s\n", - device->pnp.bus_id, state_string(state))); + device->pnp.bus_id, + acpi_power_state_string(state))); } return result; diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 9d7c2ca0f1f7..71eceb99d411 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -331,6 +331,7 @@ acpi_status acpi_bus_get_status_handle(acpi_handle handle, unsigned long long *sta); int acpi_bus_get_status(struct acpi_device *device); int acpi_bus_set_power(acpi_handle handle, int state); +const char *acpi_power_state_string(int state); int acpi_device_get_power(struct acpi_device *device, int *state); int acpi_device_set_power(struct acpi_device *device, int state); int acpi_bus_update_power(acpi_handle handle, int *state_p); |