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

4 files changed, 19 insertions, 25 deletions

diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 4ab807dc851..59d3202f6b3 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 5b02a0aa540..41ade6570bc 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 1460c88a7c0..0dbe5cdf339 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 d5993e339a2..a8a55d4143f 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)