@@ -313,7 +313,7 @@ int acpi_bus_init_power(struct acpi_device *device)
return -EINVAL;
device->power.state = ACPI_STATE_UNKNOWN;
- if (!acpi_device_is_present(device)) {
+ if (!acpi_dev_ready_for_enumeration(device)) {
device->flags.initialized = false;
return -ENXIO;
}
@@ -141,7 +141,7 @@ static int create_pnp_modalias(const struct acpi_device *acpi_dev, char *modalia
struct acpi_hardware_id *id;
/* Avoid unnecessarily loading modules for non present devices. */
- if (!acpi_device_is_present(acpi_dev))
+ if (!acpi_dev_ready_for_enumeration(acpi_dev))
return 0;
/*
@@ -107,7 +107,6 @@ int acpi_device_setup_files(struct acpi_device *dev);
void acpi_device_remove_files(struct acpi_device *dev);
void acpi_device_add_finalize(struct acpi_device *device);
void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
-bool acpi_device_is_present(const struct acpi_device *adev);
bool acpi_device_is_battery(struct acpi_device *adev);
bool acpi_device_is_first_physical_node(struct acpi_device *adev,
const struct device *dev);
@@ -1418,7 +1418,7 @@ static bool acpi_fwnode_device_is_available(const struct fwnode_handle *fwnode)
if (!is_acpi_device_node(fwnode))
return false;
- return acpi_device_is_present(to_acpi_device_node(fwnode));
+ return acpi_dev_ready_for_enumeration(to_acpi_device_node(fwnode));
}
static const void *
@@ -304,7 +304,7 @@ static int acpi_scan_device_check(struct acpi_device *adev)
int error;
acpi_bus_get_status(adev);
- if (acpi_device_is_present(adev)) {
+ if (acpi_dev_ready_for_enumeration(adev)) {
/*
* This function is only called for device objects for which
* matching scan handlers exist. The only situation in which
@@ -338,7 +338,7 @@ static int acpi_scan_bus_check(struct acpi_device *adev, void *not_used)
int error;
acpi_bus_get_status(adev);
- if (!acpi_device_is_present(adev)) {
+ if (!acpi_dev_ready_for_enumeration(adev)) {
acpi_scan_device_not_enumerated(adev);
return 0;
}
@@ -1908,11 +1908,6 @@ static bool acpi_device_should_be_hidden(acpi_handle handle)
return true;
}
-bool acpi_device_is_present(const struct acpi_device *adev)
-{
- return adev->status.present || adev->status.functional;
-}
-
static bool acpi_scan_handler_matching(struct acpi_scan_handler *handler,
const char *idstr,
const struct acpi_device_id **matchid)
@@ -2375,16 +2370,25 @@ EXPORT_SYMBOL_GPL(acpi_dev_clear_dependencies);
* acpi_dev_ready_for_enumeration - Check if the ACPI device is ready for enumeration
* @device: Pointer to the &struct acpi_device to check
*
- * Check if the device is present and has no unmet dependencies.
+ * Check if the device is functional or enabled and has no unmet dependencies.
*
- * Return true if the device is ready for enumeratino. Otherwise, return false.
+ * Return true if the device is ready for enumeration. Otherwise, return false.
*/
bool acpi_dev_ready_for_enumeration(const struct acpi_device *device)
{
if (device->flags.honor_deps && device->dep_unmet)
return false;
- return acpi_device_is_present(device);
+ /*
+ * ACPI 6.5's 6.3.7 "_STA (Device Status)" allows firmware to return
+ * (!present && functional) for certain types of devices that should be
+ * enumerated. Note that the enabled bit can't be sert until the present
+ * bit is set.
+ */
+ if (device->status.present)
+ return device->status.enabled;
+ else
+ return device->status.functional;
}
EXPORT_SYMBOL_GPL(acpi_dev_ready_for_enumeration);