134 static acpi_status acpi_bus_offline(acpi_handle handle, u32 lvl, void *data,  in acpi_bus_offline()  argument
137 	struct acpi_device *device = acpi_fetch_acpi_dev(handle);  in acpi_bus_offline()
179 static acpi_status acpi_bus_online(acpi_handle handle, u32 lvl, void *data,  in acpi_bus_online()  argument
182 	struct acpi_device *device = acpi_fetch_acpi_dev(handle);  in acpi_bus_online()
203 	acpi_handle handle = device->handle;  in acpi_scan_try_to_offline()  local
216 	status = acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,  in acpi_scan_try_to_offline()
221 		acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,  in acpi_scan_try_to_offline()
225 	acpi_bus_offline(handle, 0, (void *)false, (void **)&errdev);  in acpi_scan_try_to_offline()
228 		acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,  in acpi_scan_try_to_offline()
232 			acpi_bus_offline(handle, 0, (void *)true,  in acpi_scan_try_to_offline()
237 			acpi_bus_online(handle, 0, NULL, NULL);  in acpi_scan_try_to_offline()
238 			acpi_walk_namespace(ACPI_TYPE_ANY, handle,  in acpi_scan_try_to_offline()
249 	acpi_handle handle = device->handle;  in acpi_scan_hot_remove()  local
262 	acpi_handle_debug(handle, "Ejecting\n");  in acpi_scan_hot_remove()
266 	acpi_evaluate_lck(handle, 0);  in acpi_scan_hot_remove()
270 	status = acpi_evaluate_ej0(handle);  in acpi_scan_hot_remove()
280 	status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);  in acpi_scan_hot_remove()
282 		acpi_handle_warn(handle,  in acpi_scan_hot_remove()
285 		acpi_handle_warn(handle,  in acpi_scan_hot_remove()
320 		error = acpi_bus_scan(adev->handle);  in acpi_scan_device_check()
348 	error = acpi_bus_scan(adev->handle);  in acpi_scan_bus_check()
369 		acpi_evaluate_ost(adev->handle, ACPI_NOTIFY_EJECT_REQUEST,  in acpi_generic_hotplug_event()
389 	if (adev->handle == INVALID_ACPI_HANDLE)  in acpi_device_hotplug()
427 	acpi_evaluate_ost(adev->handle, src, ost_code, NULL);  in acpi_device_hotplug()
540 static void acpi_scan_drop_device(acpi_handle handle, void *context)  in acpi_scan_drop_device()  argument
562 	adev->handle = INVALID_ACPI_HANDLE;  in acpi_scan_drop_device()
567 static struct acpi_device *handle_to_device(acpi_handle handle,  in handle_to_device()  argument
573 	status = acpi_get_data_full(handle, acpi_scan_drop_device,  in handle_to_device()
576 		acpi_handle_debug(handle, "No context!\n");  in handle_to_device()
589 struct acpi_device *acpi_fetch_acpi_dev(acpi_handle handle)  in acpi_fetch_acpi_dev()  argument
591 	return handle_to_device(handle, NULL);  in acpi_fetch_acpi_dev()
611 struct acpi_device *acpi_get_acpi_dev(acpi_handle handle)  in acpi_get_acpi_dev()  argument
613 	return handle_to_device(handle, get_acpi_device);  in acpi_get_acpi_dev()
646 	acpi_handle handle = adev->handle;  in acpi_tie_acpi_dev()  local
649 	if (!handle)  in acpi_tie_acpi_dev()
652 	status = acpi_attach_data(handle, acpi_scan_drop_device, adev);  in acpi_tie_acpi_dev()
654 		acpi_handle_err(handle, "Unable to attach device data\n");  in acpi_tie_acpi_dev()
666 	status = acpi_get_physical_device_location(adev->handle, &pld);  in acpi_store_pld_crc()
751 	acpi_detach_data(device->handle, acpi_scan_drop_device);  in acpi_device_add()
804 static struct acpi_device *acpi_find_parent_acpi_dev(acpi_handle handle)  in acpi_find_parent_acpi_dev()  argument
813 	if (!handle)  in acpi_find_parent_acpi_dev()
819 		status = acpi_get_parent(handle, &handle);  in acpi_find_parent_acpi_dev()
826 		adev = acpi_fetch_acpi_dev(handle);  in acpi_find_parent_acpi_dev()
832 acpi_bus_get_ejd(acpi_handle handle, acpi_handle *ejd)  in acpi_bus_get_ejd()  argument
839 	status = acpi_get_handle(handle, "_EJD", &tmp);  in acpi_bus_get_ejd()
843 	status = acpi_evaluate_object(handle, "_EJD", NULL, &buffer);  in acpi_bus_get_ejd()
856 	acpi_handle handle = dev->handle;  in acpi_bus_extract_wakeup_device_power_package()  local
867 	status = acpi_evaluate_object(handle, "_PRW", NULL, &buffer);  in acpi_bus_extract_wakeup_device_power_package()
869 		acpi_handle_info(handle, "_PRW evaluation failed: %s\n",  in acpi_bus_extract_wakeup_device_power_package()
891 		    element->package.elements[0].reference.handle;  in acpi_bus_extract_wakeup_device_power_package()
917 			acpi_handle_warn(handle, "Retrieving current states "  in acpi_bus_extract_wakeup_device_power_package()
923 			acpi_handle_warn(handle, "Overriding _PRW sleep state "  in acpi_bus_extract_wakeup_device_power_package()
963 	status = acpi_setup_gpe_for_wake(device->handle, wakeup->gpe_device,  in acpi_wakeup_gpe_init()
973 	if (!acpi_has_method(device->handle, "_PRW"))  in acpi_bus_get_wakeup_device_flags()
1006 	status = acpi_evaluate_object(device->handle, pathname, NULL, &buffer);  in acpi_bus_init_power_state()
1020 	if (acpi_has_method(device->handle, pathname))  in acpi_bus_init_power_state()
1037 	if (!acpi_has_method(device->handle, "_PS0") &&  in acpi_bus_get_power_flags()
1038 	    !acpi_has_method(device->handle, "_PR0"))  in acpi_bus_get_power_flags()
1046 	if (acpi_has_method(device->handle, "_PSC"))  in acpi_bus_get_power_flags()
1049 	if (acpi_has_method(device->handle, "_IRC"))  in acpi_bus_get_power_flags()
1052 	if (acpi_has_method(device->handle, "_DSW"))  in acpi_bus_get_power_flags()
1055 	acpi_evaluate_integer(device->handle, "_DSC", NULL, &dsc);  in acpi_bus_get_power_flags()
1093 	if (acpi_has_method(device->handle, "_STA"))  in acpi_bus_get_flags()
1097 	if (acpi_has_method(device->handle, "_RMV"))  in acpi_bus_get_flags()
1101 	if (acpi_has_method(device->handle, "_EJD") ||  in acpi_bus_get_flags()
1102 	    acpi_has_method(device->handle, "_EJ0"))  in acpi_bus_get_flags()
1134 		acpi_get_name(device->handle, ACPI_SINGLE_NAME, &buffer);  in acpi_device_get_busid()
1153 bool acpi_ata_match(acpi_handle handle)  in acpi_ata_match()  argument
1155 	return acpi_has_method(handle, "_GTF") ||  in acpi_ata_match()
1156 	       acpi_has_method(handle, "_GTM") ||  in acpi_ata_match()
1157 	       acpi_has_method(handle, "_STM") ||  in acpi_ata_match()
1158 	       acpi_has_method(handle, "_SDD");  in acpi_ata_match()
1167 bool acpi_bay_match(acpi_handle handle)  in acpi_bay_match()  argument
1171 	if (!acpi_has_method(handle, "_EJ0"))  in acpi_bay_match()
1173 	if (acpi_ata_match(handle))  in acpi_bay_match()
1175 	if (ACPI_FAILURE(acpi_get_parent(handle, &phandle)))  in acpi_bay_match()
1194 	acpi_handle handle = adev->handle;  in is_ejectable_bay()  local
1196 	if (acpi_has_method(handle, "_EJ0") && acpi_device_is_battery(adev))  in is_ejectable_bay()
1199 	return acpi_bay_match(handle);  in is_ejectable_bay()
1205 bool acpi_dock_match(acpi_handle handle)  in acpi_dock_match()  argument
1207 	return acpi_has_method(handle, "_DCK");  in acpi_dock_match()
1211 acpi_backlight_cap_match(acpi_handle handle, u32 level, void *context,  in acpi_backlight_cap_match()  argument
1216 	if (acpi_has_method(handle, "_BCM") &&  in acpi_backlight_cap_match()
1217 	    acpi_has_method(handle, "_BCL")) {  in acpi_backlight_cap_match()
1218 		acpi_handle_debug(handle, "Found generic backlight support\n");  in acpi_backlight_cap_match()
1234 long acpi_is_video_device(acpi_handle handle)  in acpi_is_video_device()  argument
1239 	if (acpi_has_method(handle, "_DOD") || acpi_has_method(handle, "_DOS"))  in acpi_is_video_device()
1243 	if (acpi_has_method(handle, "_ROM"))  in acpi_is_video_device()
1247 	if (acpi_has_method(handle, "_VPO") &&  in acpi_is_video_device()
1248 	    acpi_has_method(handle, "_GPD") &&  in acpi_is_video_device()
1249 	    acpi_has_method(handle, "_SPD"))  in acpi_is_video_device()
1254 		acpi_walk_namespace(ACPI_TYPE_DEVICE, handle,  in acpi_is_video_device()
1297 static bool acpi_ibm_smbus_match(acpi_handle handle)  in acpi_ibm_smbus_match()  argument
1306 	if (ACPI_FAILURE(acpi_get_name(handle, ACPI_SINGLE_NAME, &path)) ||  in acpi_ibm_smbus_match()
1311 	if (acpi_has_method(handle, "SBI") &&  in acpi_ibm_smbus_match()
1312 	    acpi_has_method(handle, "SBR") &&  in acpi_ibm_smbus_match()
1313 	    acpi_has_method(handle, "SBW"))  in acpi_ibm_smbus_match()
1319 static bool acpi_object_is_system_bus(acpi_handle handle)  in acpi_object_is_system_bus()  argument
1324 	    tmp == handle)  in acpi_object_is_system_bus()
1327 	    tmp == handle)  in acpi_object_is_system_bus()
1333 static void acpi_set_pnp_ids(acpi_handle handle, struct acpi_device_pnp *pnp,  in acpi_set_pnp_ids()  argument
1342 		if (handle == ACPI_ROOT_OBJECT) {  in acpi_set_pnp_ids()
1347 		acpi_get_object_info(handle, &info);  in acpi_set_pnp_ids()
1378 		if (acpi_is_video_device(handle)) {  in acpi_set_pnp_ids()
1383 		if (acpi_bay_match(handle))  in acpi_set_pnp_ids()
1385 		else if (acpi_dock_match(handle))  in acpi_set_pnp_ids()
1387 		else if (acpi_ibm_smbus_match(handle))  in acpi_set_pnp_ids()
1390 			 acpi_object_is_system_bus(handle)) {  in acpi_set_pnp_ids()
1499 		if (adev && acpi_has_method(adev->handle, METHOD_NAME__DMA))  in acpi_dma_get_range()
1508 	if (!acpi_has_method(adev->handle, METHOD_NAME__CRS)) {  in acpi_dma_get_range()
1509 		acpi_handle_warn(adev->handle, "_DMA is valid only if _CRS is present\n");  in acpi_dma_get_range()
1665 		status = acpi_evaluate_integer(adev->handle, "_CCA",  in acpi_init_coherency()
1677 			acpi_handle_debug(adev->handle,  in acpi_init_coherency()
1769 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,  in acpi_init_device_object()  argument
1772 	struct acpi_device *parent = acpi_find_parent_acpi_dev(handle);  in acpi_init_device_object()
1776 	device->handle = handle;  in acpi_init_device_object()
1783 	acpi_set_pnp_ids(handle, &device->pnp, type);  in acpi_init_device_object()
1801 		if (dep->consumer == adev->handle) {  in acpi_scan_dep_init()
1823 				  acpi_handle handle, int type, bool dep_init)  in acpi_add_single_object()  argument
1833 	acpi_init_device_object(device, handle, type, acpi_device_release);  in acpi_add_single_object()
1873 	acpi_handle_debug(handle, "Added as %s, parent %s\n",  in acpi_add_single_object()
1892 static bool acpi_device_should_be_hidden(acpi_handle handle)  in acpi_device_should_be_hidden()  argument
1898 	if (!(spcr_uart_addr && acpi_has_method(handle, METHOD_NAME__CRS)))  in acpi_device_should_be_hidden()
1905 	status = acpi_walk_resources(handle, METHOD_NAME__CRS,  in acpi_device_should_be_hidden()
1910 	acpi_handle_info(handle, "The UART device @%pa in SPCR table will be hidden\n",  in acpi_device_should_be_hidden()
1969 	if (acpi_dock_match(adev->handle) || is_ejectable_bay(adev)) {  in acpi_scan_init_hotplug()
1984 static u32 acpi_scan_check_dep(acpi_handle handle, bool check_dep)  in acpi_scan_check_dep()  argument
1997 	if (!check_dep || !acpi_has_method(handle, "_DEP") ||  in acpi_scan_check_dep()
1998 	    !acpi_has_method(handle, "_HID"))  in acpi_scan_check_dep()
2001 	status = acpi_evaluate_reference(handle, "_DEP", NULL, &dep_devices);  in acpi_scan_check_dep()
2003 		acpi_handle_debug(handle, "Failed to evaluate _DEP.\n");  in acpi_scan_check_dep()
2014 			acpi_handle_debug(handle, "Error reading _DEP device info\n");  in acpi_scan_check_dep()
2032 		dep->consumer = handle;  in acpi_scan_check_dep()
2043 static acpi_status acpi_bus_check_add(acpi_handle handle, bool check_dep,  in acpi_bus_check_add()  argument
2046 	struct acpi_device *device = acpi_fetch_acpi_dev(handle);  in acpi_bus_check_add()
2053 	if (ACPI_FAILURE(acpi_get_type(handle, &acpi_type)))  in acpi_bus_check_add()
2058 		if (acpi_device_should_be_hidden(handle))  in acpi_bus_check_add()
2062 		if (acpi_scan_check_dep(handle, check_dep) > 0)  in acpi_bus_check_add()
2079 		acpi_add_power_resource(handle);  in acpi_bus_check_add()
2089 	acpi_add_single_object(&device, handle, type, !check_dep);  in acpi_bus_check_add()
2102 static acpi_status acpi_bus_check_add_1(acpi_handle handle, u32 lvl_not_used,  in acpi_bus_check_add_1()  argument
2105 	return acpi_bus_check_add(handle, true, (struct acpi_device **)ret_p);  in acpi_bus_check_add_1()
2108 static acpi_status acpi_bus_check_add_2(acpi_handle handle, u32 lvl_not_used,  in acpi_bus_check_add_2()  argument
2111 	return acpi_bus_check_add(handle, false, (struct acpi_device **)ret_p);  in acpi_bus_check_add_2()
2190 	if (ACPI_SUCCESS(acpi_bus_get_ejd(device->handle, &ejd)))  in acpi_bus_attach()
2254 		if (dep->consumer == adev->handle)  in acpi_dev_get_next_consumer_dev_cb()
2347 static int acpi_walk_dep_device_list(acpi_handle handle,  in acpi_walk_dep_device_list()  argument
2356 		if (dep->supplier == handle) {  in acpi_walk_dep_device_list()
2375 	acpi_walk_dep_device_list(supplier->handle, acpi_scan_clear_dep, NULL);  in acpi_dev_clear_dependencies()
2412 	acpi_walk_dep_device_list(supplier->handle,  in acpi_dev_get_next_consumer_dev()
2424 static void acpi_scan_postponed_branch(acpi_handle handle)  in acpi_scan_postponed_branch()  argument
2428 	if (ACPI_FAILURE(acpi_bus_check_add(handle, false, &adev)))  in acpi_scan_postponed_branch()
2431 	acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,  in acpi_scan_postponed_branch()
2443 		acpi_handle handle = dep->consumer;  in acpi_scan_postponed()  local
2450 		if (!acpi_fetch_acpi_dev(handle)) {  in acpi_scan_postponed()
2459 			acpi_scan_postponed_branch(handle);  in acpi_scan_postponed()
2487 int acpi_bus_scan(acpi_handle handle)  in acpi_bus_scan()  argument
2493 	if (ACPI_SUCCESS(acpi_bus_check_add(handle, true, &device)))  in acpi_bus_scan()
2494 		acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,  in acpi_bus_scan()