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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-08-27 01:28:17 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-08-27 01:28:17 +0200
commit0ad4c9a9848fdd46dc422160efd947489a98bbc1 (patch)
treeb9a0de74dd0725d8b705b7a18b0fb14632c423fe /drivers/acpi
parentabe5430e9d5314190ca571b3bfc0c42000634378 (diff)
parent593298e68a3a53bd2fe942244250dfef4d68d477 (diff)
downloadlinux-0ad4c9a9848fdd46dc422160efd947489a98bbc1.tar.bz2
Merge branch 'acpi-pm'
* acpi-pm: ACPI / PM: Add state information to error message in acpi_device_set_power() ACPI / PM: Remove redundant power manageable check from acpi_bus_set_power() ACPI / PM: Use ACPI_STATE_D3_COLD instead of ACPI_STATE_D3 everywhere ACPI / PM: Make messages in acpi_device_set_power() print device names ACPI / PM: Only set power states of devices that are power manageable
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/device_pm.c34
-rw-r--r--drivers/acpi/fan.c4
-rw-r--r--drivers/acpi/power.c2
-rw-r--r--drivers/acpi/scan.c4
4 files changed, 19 insertions, 25 deletions
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 4ab807dc8518..59d3202f6b36 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -159,26 +159,29 @@ int acpi_device_set_power(struct acpi_device *device, int state)
int result = 0;
bool cut_power = false;
- if (!device || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3_COLD))
+ if (!device || !device->flags.power_manageable
+ || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3_COLD))
return -EINVAL;
/* Make sure this is a valid target state */
if (state == device->power.state) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at %s\n",
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] already in %s\n",
+ device->pnp.bus_id,
acpi_power_state_string(state)));
return 0;
}
if (!device->power.states[state].flags.valid) {
- printk(KERN_WARNING PREFIX "Device does not support %s\n",
- acpi_power_state_string(state));
+ dev_warn(&device->dev, "Power state %s not supported\n",
+ acpi_power_state_string(state));
return -ENODEV;
}
if (device->parent && (state < device->parent->power.state)) {
- printk(KERN_WARNING PREFIX
- "Cannot set device to a higher-powered"
- " state than parent\n");
+ dev_warn(&device->dev,
+ "Cannot transition to power state %s for parent in %s\n",
+ acpi_power_state_string(state),
+ acpi_power_state_string(device->parent->power.state));
return -ENODEV;
}
@@ -191,8 +194,8 @@ int acpi_device_set_power(struct acpi_device *device, int state)
if (state < device->power.state && state != ACPI_STATE_D0
&& device->power.state >= ACPI_STATE_D3_HOT) {
- printk(KERN_WARNING PREFIX
- "Cannot transition to non-D0 state from D3\n");
+ dev_warn(&device->dev,
+ "Cannot transition to non-D0 state from D3\n");
return -ENODEV;
}
@@ -219,10 +222,8 @@ int acpi_device_set_power(struct acpi_device *device, int state)
end:
if (result) {
- printk(KERN_WARNING PREFIX
- "Device [%s] failed to transition to %s\n",
- device->pnp.bus_id,
- acpi_power_state_string(state));
+ dev_warn(&device->dev, "Failed to change power state to %s\n",
+ acpi_power_state_string(state));
} else {
device->power.state = state;
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
@@ -244,13 +245,6 @@ int acpi_bus_set_power(acpi_handle handle, int state)
if (result)
return result;
- if (!device->flags.power_manageable) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Device [%s] is not power manageable\n",
- dev_name(&device->dev)));
- return -ENODEV;
- }
-
return acpi_device_set_power(device, state);
}
EXPORT_SYMBOL(acpi_bus_set_power);
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index 5b02a0aa540c..41ade6570bc0 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -93,7 +93,7 @@ static int fan_get_cur_state(struct thermal_cooling_device *cdev, unsigned long
if (result)
return result;
- *state = (acpi_state == ACPI_STATE_D3 ? 0 :
+ *state = (acpi_state == ACPI_STATE_D3_COLD ? 0 :
(acpi_state == ACPI_STATE_D0 ? 1 : -1));
return 0;
}
@@ -108,7 +108,7 @@ fan_set_cur_state(struct thermal_cooling_device *cdev, unsigned long state)
return -EINVAL;
result = acpi_bus_set_power(device->handle,
- state ? ACPI_STATE_D0 : ACPI_STATE_D3);
+ state ? ACPI_STATE_D0 : ACPI_STATE_D3_COLD);
return result;
}
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 1460c88a7c0e..0dbe5cdf3396 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -784,7 +784,7 @@ int acpi_power_get_inferred_state(struct acpi_device *device, int *state)
}
}
- *state = ACPI_STATE_D3;
+ *state = ACPI_STATE_D3_COLD;
return 0;
}
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index d5993e339a26..a8a55d4143f2 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1409,8 +1409,8 @@ static void acpi_bus_get_power_flags(struct acpi_device *device)
/* Set defaults for D0 and D3 states (always valid) */
device->power.states[ACPI_STATE_D0].flags.valid = 1;
device->power.states[ACPI_STATE_D0].power = 100;
- device->power.states[ACPI_STATE_D3].flags.valid = 1;
- device->power.states[ACPI_STATE_D3].power = 0;
+ device->power.states[ACPI_STATE_D3_COLD].flags.valid = 1;
+ device->power.states[ACPI_STATE_D3_COLD].power = 0;
/* Set D3cold's explicit_set flag if _PS3 exists. */
if (device->power.states[ACPI_STATE_D3_HOT].flags.explicit_set)