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authorTony Luck <tony.luck@intel.com>2005-07-13 15:15:43 -0400
committerTony Luck <tony.luck@intel.com>2005-07-13 15:15:43 -0400
commit99ad25a313bda566a346b46a6015afa65bc0a02b (patch)
treeb9443fed1ab74f320c4ee0791864ee96d7c069df /drivers/acpi/bus.c
parentf62c4a96f74d6c6dd56d1742697e94a5c2085e87 (diff)
parent9a556e89081b0c1c2f83cee915363b15a68a6f2d (diff)
Auto merge with /home/aegl/GIT/linus
Diffstat (limited to 'drivers/acpi/bus.c')
-rw-r--r--drivers/acpi/bus.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 4edff1738579..d77c2307883c 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -212,6 +212,12 @@ acpi_bus_set_power (
212 ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Device is not power manageable\n")); 212 ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Device is not power manageable\n"));
213 return_VALUE(-ENODEV); 213 return_VALUE(-ENODEV);
214 } 214 }
215 /*
216 * Get device's current power state if it's unknown
217 * This means device power state isn't initialized or previous setting failed
218 */
219 if (device->power.state == ACPI_STATE_UNKNOWN)
220 acpi_bus_get_power(device->handle, &device->power.state);
215 if (state == device->power.state) { 221 if (state == device->power.state) {
216 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n", state)); 222 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n", state));
217 return_VALUE(0); 223 return_VALUE(0);
@@ -231,7 +237,7 @@ acpi_bus_set_power (
231 * On transitions to a high-powered state we first apply power (via 237 * On transitions to a high-powered state we first apply power (via
232 * power resources) then evalute _PSx. Conversly for transitions to 238 * power resources) then evalute _PSx. Conversly for transitions to
233 * a lower-powered state. 239 * a lower-powered state.
234 */ 240 */
235 if (state < device->power.state) { 241 if (state < device->power.state) {
236 if (device->power.flags.power_resources) { 242 if (device->power.flags.power_resources) {
237 result = acpi_power_transition(device, state); 243 result = acpi_power_transition(device, state);