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path: root/drivers/acpi/scan.c
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Diffstat (limited to 'drivers/acpi/scan.c')
-rw-r--r--drivers/acpi/scan.c20
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index b0fe5272c76a..8e63d937babb 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1565,6 +1565,8 @@ void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
device_initialize(&device->dev);
dev_set_uevent_suppress(&device->dev, true);
acpi_init_coherency(device);
+ /* Assume there are unmet deps until acpi_device_dep_initialize() runs */
+ device->dep_unmet = 1;
}
void acpi_device_add_finalize(struct acpi_device *device)
@@ -1588,6 +1590,14 @@ static int acpi_add_single_object(struct acpi_device **child,
}
acpi_init_device_object(device, handle, type, sta);
+ /*
+ * For ACPI_BUS_TYPE_DEVICE getting the status is delayed till here so
+ * that we can call acpi_bus_get_status() and use its quirk handling.
+ * Note this must be done before the get power-/wakeup_dev-flags calls.
+ */
+ if (type == ACPI_BUS_TYPE_DEVICE)
+ acpi_bus_get_status(device);
+
acpi_bus_get_power_flags(device);
acpi_bus_get_wakeup_device_flags(device);
@@ -1660,9 +1670,11 @@ static int acpi_bus_type_and_status(acpi_handle handle, int *type,
return -ENODEV;
*type = ACPI_BUS_TYPE_DEVICE;
- status = acpi_bus_get_status_handle(handle, sta);
- if (ACPI_FAILURE(status))
- *sta = 0;
+ /*
+ * acpi_add_single_object updates this once we've an acpi_device
+ * so that acpi_bus_get_status' quirk handling can be used.
+ */
+ *sta = 0;
break;
case ACPI_TYPE_PROCESSOR:
*type = ACPI_BUS_TYPE_PROCESSOR;
@@ -1760,6 +1772,8 @@ static void acpi_device_dep_initialize(struct acpi_device *adev)
acpi_status status;
int i;
+ adev->dep_unmet = 0;
+
if (!acpi_has_method(adev->handle, "_DEP"))
return;