diff options
author | Mark Brown <broonie@linaro.org> | 2013-07-22 11:16:51 +0100 |
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committer | Mark Brown <broonie@linaro.org> | 2013-07-22 11:16:51 +0100 |
commit | 9f6772da061814c2962aeb7d79231f7510dba313 (patch) | |
tree | e0c4a856204af6adff125ee61fe1f3059cada71b /drivers/acpi/device_pm.c | |
parent | d998ec4860d366424a55059093bb022beb38a61d (diff) | |
parent | 0f4a56e16d5fc9028b62ba529177a3109513e111 (diff) |
Merge tag 'v3.10.2' into linux-linaro-lsk-androidlsk-android
This is the 3.10.2 stable release
Diffstat (limited to 'drivers/acpi/device_pm.c')
-rw-r--r-- | drivers/acpi/device_pm.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index 31c217a4283..553527c2532 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -324,14 +324,27 @@ int acpi_bus_update_power(acpi_handle handle, int *state_p) if (result) return result; - if (state == ACPI_STATE_UNKNOWN) + if (state == ACPI_STATE_UNKNOWN) { state = ACPI_STATE_D0; - - result = acpi_device_set_power(device, state); - if (!result && state_p) + result = acpi_device_set_power(device, state); + if (result) + return result; + } else { + if (device->power.flags.power_resources) { + /* + * We don't need to really switch the state, bu we need + * to update the power resources' reference counters. + */ + result = acpi_power_transition(device, state); + if (result) + return result; + } + device->power.state = state; + } + if (state_p) *state_p = state; - return result; + return 0; } EXPORT_SYMBOL_GPL(acpi_bus_update_power); |