137 static acpi_status acpi_bus_offline(acpi_handle handle, u32 lvl, void *data,  in acpi_bus_offline()  argument
140 	struct acpi_device *device = acpi_fetch_acpi_dev(handle);  in acpi_bus_offline()
182 static acpi_status acpi_bus_online(acpi_handle handle, u32 lvl, void *data,  in acpi_bus_online()  argument
185 	struct acpi_device *device = acpi_fetch_acpi_dev(handle);  in acpi_bus_online()
206 	acpi_handle handle = device->handle;  in acpi_scan_try_to_offline()  local
219 	status = acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,  in acpi_scan_try_to_offline()
224 		acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,  in acpi_scan_try_to_offline()
228 	acpi_bus_offline(handle, 0, (void *)false, (void **)&errdev);  in acpi_scan_try_to_offline()
231 		acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,  in acpi_scan_try_to_offline()
235 			acpi_bus_offline(handle, 0, (void *)true,  in acpi_scan_try_to_offline()
240 			acpi_bus_online(handle, 0, NULL, NULL);  in acpi_scan_try_to_offline()
241 			acpi_walk_namespace(ACPI_TYPE_ANY, handle,  in acpi_scan_try_to_offline()
325 	acpi_handle handle = device->handle;  in acpi_scan_hot_remove()  local
339 	acpi_handle_debug(handle, "Ejecting\n");  in acpi_scan_hot_remove()
343 	acpi_evaluate_lck(handle, 0);  in acpi_scan_hot_remove()
347 	status = acpi_evaluate_ej0(handle);  in acpi_scan_hot_remove()
357 	status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);  in acpi_scan_hot_remove()
359 		acpi_handle_warn(handle,  in acpi_scan_hot_remove()
362 		acpi_handle_warn(handle,  in acpi_scan_hot_remove()
379 		ret = acpi_bus_scan(adev->handle);  in acpi_scan_rescan_bus()
435 		acpi_evaluate_ost(adev->handle, ACPI_NOTIFY_EJECT_REQUEST,  in acpi_generic_hotplug_event()
455 	if (adev->handle == INVALID_ACPI_HANDLE)  in acpi_device_hotplug()
493 	acpi_evaluate_ost(adev->handle, src, ost_code, NULL);  in acpi_device_hotplug()
606 static void acpi_scan_drop_device(acpi_handle handle, void *context)  in acpi_scan_drop_device()  argument
628 	adev->handle = INVALID_ACPI_HANDLE;  in acpi_scan_drop_device()
633 static struct acpi_device *handle_to_device(acpi_handle handle,  in handle_to_device()  argument
639 	status = acpi_get_data_full(handle, acpi_scan_drop_device,  in handle_to_device()
642 		acpi_handle_debug(handle, "No context!\n");  in handle_to_device()
655 struct acpi_device *acpi_fetch_acpi_dev(acpi_handle handle)  in acpi_fetch_acpi_dev()  argument
657 	return handle_to_device(handle, NULL);  in acpi_fetch_acpi_dev()
677 struct acpi_device *acpi_get_acpi_dev(acpi_handle handle)  in acpi_get_acpi_dev()  argument
679 	return handle_to_device(handle, get_acpi_device);  in acpi_get_acpi_dev()
712 	acpi_handle handle = adev->handle;  in acpi_tie_acpi_dev()  local
715 	if (!handle)  in acpi_tie_acpi_dev()
718 	status = acpi_attach_data(handle, acpi_scan_drop_device, adev);  in acpi_tie_acpi_dev()
720 		acpi_handle_err(handle, "Unable to attach device data\n");  in acpi_tie_acpi_dev()
731 	if (!acpi_get_physical_device_location(adev->handle, &pld))  in acpi_store_pld_crc()
811 	acpi_detach_data(device->handle, acpi_scan_drop_device);  in acpi_device_add()
872 static struct acpi_device *acpi_find_parent_acpi_dev(acpi_handle handle)  in acpi_find_parent_acpi_dev()  argument
881 	if (!handle)  in acpi_find_parent_acpi_dev()
887 		status = acpi_get_parent(handle, &handle);  in acpi_find_parent_acpi_dev()
894 		adev = acpi_fetch_acpi_dev(handle);  in acpi_find_parent_acpi_dev()
900 acpi_bus_get_ejd(acpi_handle handle, acpi_handle *ejd)  in acpi_bus_get_ejd()  argument
907 	status = acpi_get_handle(handle, "_EJD", &tmp);  in acpi_bus_get_ejd()
911 	status = acpi_evaluate_object(handle, "_EJD", NULL, &buffer);  in acpi_bus_get_ejd()
924 	acpi_handle handle = dev->handle;  in acpi_bus_extract_wakeup_device_power_package()  local
935 	status = acpi_evaluate_object(handle, "_PRW", NULL, &buffer);  in acpi_bus_extract_wakeup_device_power_package()
937 		acpi_handle_info(handle, "_PRW evaluation failed: %s\n",  in acpi_bus_extract_wakeup_device_power_package()
959 		    element->package.elements[0].reference.handle;  in acpi_bus_extract_wakeup_device_power_package()
985 			acpi_handle_warn(handle, "Retrieving current states "  in acpi_bus_extract_wakeup_device_power_package()
991 			acpi_handle_warn(handle, "Overriding _PRW sleep state "  in acpi_bus_extract_wakeup_device_power_package()
1020 	status = acpi_setup_gpe_for_wake(device->handle, wakeup->gpe_device,  in acpi_wakeup_gpe_init()
1030 	if (!acpi_has_method(device->handle, "_PRW"))  in acpi_bus_get_wakeup_device_flags()
1063 	status = acpi_evaluate_object(device->handle, pathname, NULL, &buffer);  in acpi_bus_init_power_state()
1077 	if (acpi_has_method(device->handle, pathname))  in acpi_bus_init_power_state()
1094 	if (!acpi_has_method(device->handle, "_PS0") &&  in acpi_bus_get_power_flags()
1095 	    !acpi_has_method(device->handle, "_PR0"))  in acpi_bus_get_power_flags()
1103 	if (acpi_has_method(device->handle, "_PSC"))  in acpi_bus_get_power_flags()
1106 	if (acpi_has_method(device->handle, "_IRC"))  in acpi_bus_get_power_flags()
1109 	if (acpi_has_method(device->handle, "_DSW"))  in acpi_bus_get_power_flags()
1112 	acpi_evaluate_integer(device->handle, "_DSC", NULL, &dsc);  in acpi_bus_get_power_flags()
1150 	if (acpi_has_method(device->handle, "_STA"))  in acpi_bus_get_flags()
1154 	if (acpi_has_method(device->handle, "_RMV"))  in acpi_bus_get_flags()
1158 	if (acpi_has_method(device->handle, "_EJD") ||  in acpi_bus_get_flags()
1159 	    acpi_has_method(device->handle, "_EJ0"))  in acpi_bus_get_flags()
1191 		acpi_get_name(device->handle, ACPI_SINGLE_NAME, &buffer);  in acpi_device_get_busid()
1210 bool acpi_ata_match(acpi_handle handle)  in acpi_ata_match()  argument
1212 	return acpi_has_method(handle, "_GTF") ||  in acpi_ata_match()
1213 	       acpi_has_method(handle, "_GTM") ||  in acpi_ata_match()
1214 	       acpi_has_method(handle, "_STM") ||  in acpi_ata_match()
1215 	       acpi_has_method(handle, "_SDD");  in acpi_ata_match()
1224 bool acpi_bay_match(acpi_handle handle)  in acpi_bay_match()  argument
1228 	if (!acpi_has_method(handle, "_EJ0"))  in acpi_bay_match()
1230 	if (acpi_ata_match(handle))  in acpi_bay_match()
1232 	if (ACPI_FAILURE(acpi_get_parent(handle, &phandle)))  in acpi_bay_match()
1251 	acpi_handle handle = adev->handle;  in is_ejectable_bay()  local
1253 	if (acpi_has_method(handle, "_EJ0") && acpi_device_is_battery(adev))  in is_ejectable_bay()
1256 	return acpi_bay_match(handle);  in is_ejectable_bay()
1262 bool acpi_dock_match(acpi_handle handle)  in acpi_dock_match()  argument
1264 	return acpi_has_method(handle, "_DCK");  in acpi_dock_match()
1268 acpi_backlight_cap_match(acpi_handle handle, u32 level, void *context,  in acpi_backlight_cap_match()  argument
1273 	if (acpi_has_method(handle, "_BCM") &&  in acpi_backlight_cap_match()
1274 	    acpi_has_method(handle, "_BCL")) {  in acpi_backlight_cap_match()
1275 		acpi_handle_debug(handle, "Found generic backlight support\n");  in acpi_backlight_cap_match()
1289 long acpi_is_video_device(acpi_handle handle)  in acpi_is_video_device()  argument
1294 	if (acpi_has_method(handle, "_DOD") || acpi_has_method(handle, "_DOS"))  in acpi_is_video_device()
1298 	if (acpi_has_method(handle, "_ROM"))  in acpi_is_video_device()
1302 	if (acpi_has_method(handle, "_VPO") &&  in acpi_is_video_device()
1303 	    acpi_has_method(handle, "_GPD") &&  in acpi_is_video_device()
1304 	    acpi_has_method(handle, "_SPD"))  in acpi_is_video_device()
1309 		acpi_walk_namespace(ACPI_TYPE_DEVICE, handle,  in acpi_is_video_device()
1352 static bool acpi_ibm_smbus_match(acpi_handle handle)  in acpi_ibm_smbus_match()  argument
1361 	if (ACPI_FAILURE(acpi_get_name(handle, ACPI_SINGLE_NAME, &path)) ||  in acpi_ibm_smbus_match()
1366 	if (acpi_has_method(handle, "SBI") &&  in acpi_ibm_smbus_match()
1367 	    acpi_has_method(handle, "SBR") &&  in acpi_ibm_smbus_match()
1368 	    acpi_has_method(handle, "SBW"))  in acpi_ibm_smbus_match()
1374 static bool acpi_object_is_system_bus(acpi_handle handle)  in acpi_object_is_system_bus()  argument
1379 	    tmp == handle)  in acpi_object_is_system_bus()
1382 	    tmp == handle)  in acpi_object_is_system_bus()
1388 static void acpi_set_pnp_ids(acpi_handle handle, struct acpi_device_pnp *pnp,  in acpi_set_pnp_ids()  argument
1397 		if (handle == ACPI_ROOT_OBJECT) {  in acpi_set_pnp_ids()
1402 		acpi_get_object_info(handle, &info);  in acpi_set_pnp_ids()
1433 		if (acpi_is_video_device(handle)) {  in acpi_set_pnp_ids()
1438 		if (acpi_bay_match(handle))  in acpi_set_pnp_ids()
1440 		else if (acpi_dock_match(handle))  in acpi_set_pnp_ids()
1442 		else if (acpi_ibm_smbus_match(handle))  in acpi_set_pnp_ids()
1445 			 acpi_object_is_system_bus(handle)) {  in acpi_set_pnp_ids()
1555 		if (adev && acpi_has_method(adev->handle, METHOD_NAME__DMA))  in acpi_dma_get_range()
1564 	if (!acpi_has_method(adev->handle, METHOD_NAME__CRS)) {  in acpi_dma_get_range()
1565 		acpi_handle_warn(adev->handle, "_DMA is valid only if _CRS is present\n");  in acpi_dma_get_range()
1696 		status = acpi_evaluate_integer(adev->handle, "_CCA",  in acpi_init_coherency()
1708 			acpi_handle_debug(adev->handle,  in acpi_init_coherency()
1804 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,  in acpi_init_device_object()  argument
1807 	struct acpi_device *parent = acpi_find_parent_acpi_dev(handle);  in acpi_init_device_object()
1811 	device->handle = handle;  in acpi_init_device_object()
1819 	acpi_set_pnp_ids(handle, &device->pnp, type);  in acpi_init_device_object()
1837 		if (dep->consumer == adev->handle) {  in acpi_scan_dep_init()
1860 				  acpi_handle handle, int type, bool dep_init)  in acpi_add_single_object()  argument
1870 	acpi_init_device_object(device, handle, type, acpi_device_release);  in acpi_add_single_object()
1910 	acpi_handle_debug(handle, "Added as %s, parent %s\n",  in acpi_add_single_object()
1929 static bool acpi_device_should_be_hidden(acpi_handle handle)  in acpi_device_should_be_hidden()  argument
1935 	if (!(spcr_uart_addr && acpi_has_method(handle, METHOD_NAME__CRS)))  in acpi_device_should_be_hidden()
1942 	status = acpi_walk_resources(handle, METHOD_NAME__CRS,  in acpi_device_should_be_hidden()
1947 	acpi_handle_info(handle, "The UART device @%pa in SPCR table will be hidden\n",  in acpi_device_should_be_hidden()
2007 int acpi_scan_add_dep(acpi_handle handle, struct acpi_handle_list *dep_devices)  in acpi_scan_add_dep()  argument
2020 			acpi_handle_debug(handle, "Error reading _DEP device info\n");  in acpi_scan_add_dep()
2038 		dep->consumer = handle;  in acpi_scan_add_dep()
2054 	if (acpi_dock_match(adev->handle) || is_ejectable_bay(adev)) {  in acpi_scan_init_hotplug()
2069 u32 __weak arch_acpi_add_auto_dep(acpi_handle handle) { return 0; }  in arch_acpi_add_auto_dep()  argument
2071 static u32 acpi_scan_check_dep(acpi_handle handle)  in acpi_scan_check_dep()  argument
2083 	count += arch_acpi_add_auto_dep(handle);  in acpi_scan_check_dep()
2091 	if (!acpi_has_method(handle, "_DEP") || !acpi_has_method(handle, "_HID"))  in acpi_scan_check_dep()
2094 	if (!acpi_evaluate_reference(handle, "_DEP", NULL, &dep_devices)) {  in acpi_scan_check_dep()
2095 		acpi_handle_debug(handle, "Failed to evaluate _DEP.\n");  in acpi_scan_check_dep()
2099 	count += acpi_scan_add_dep(handle, &dep_devices);  in acpi_scan_check_dep()
2103 static acpi_status acpi_scan_check_crs_csi2_cb(acpi_handle handle, u32 a, void *b, void **c)  in acpi_scan_check_crs_csi2_cb()  argument
2105 	acpi_mipi_check_crs_csi2(handle);  in acpi_scan_check_crs_csi2_cb()
2109 static acpi_status acpi_bus_check_add(acpi_handle handle, bool first_pass,  in acpi_bus_check_add()  argument
2112 	struct acpi_device *device = acpi_fetch_acpi_dev(handle);  in acpi_bus_check_add()
2119 	if (ACPI_FAILURE(acpi_get_type(handle, &acpi_type)))  in acpi_bus_check_add()
2124 		if (acpi_device_should_be_hidden(handle))  in acpi_bus_check_add()
2128 			acpi_mipi_check_crs_csi2(handle);  in acpi_bus_check_add()
2131 			if (acpi_scan_check_dep(handle) > 0) {  in acpi_bus_check_add()
2139 				acpi_walk_namespace(ACPI_TYPE_DEVICE, handle,  in acpi_bus_check_add()
2161 		acpi_add_power_resource(handle);  in acpi_bus_check_add()
2171 	acpi_add_single_object(&device, handle, type, !first_pass);  in acpi_bus_check_add()
2184 static acpi_status acpi_bus_check_add_1(acpi_handle handle, u32 lvl_not_used,  in acpi_bus_check_add_1()  argument
2187 	return acpi_bus_check_add(handle, true, (struct acpi_device **)ret_p);  in acpi_bus_check_add_1()
2190 static acpi_status acpi_bus_check_add_2(acpi_handle handle, u32 lvl_not_used,  in acpi_bus_check_add_2()  argument
2193 	return acpi_bus_check_add(handle, false, (struct acpi_device **)ret_p);  in acpi_bus_check_add_2()
2345 	if (ACPI_SUCCESS(acpi_bus_get_ejd(device->handle, &ejd)))  in acpi_bus_attach()
2412 		if (dep->consumer == adev->handle)  in acpi_dev_get_next_consumer_dev_cb()
2493 static int acpi_walk_dep_device_list(acpi_handle handle,  in acpi_walk_dep_device_list()  argument
2502 		if (dep->supplier == handle) {  in acpi_walk_dep_device_list()
2521 	acpi_walk_dep_device_list(supplier->handle, acpi_scan_clear_dep, NULL);  in acpi_dev_clear_dependencies()
2558 	acpi_walk_dep_device_list(supplier->handle,  in acpi_dev_get_next_consumer_dev()
2570 static void acpi_scan_postponed_branch(acpi_handle handle)  in acpi_scan_postponed_branch()  argument
2574 	if (ACPI_FAILURE(acpi_bus_check_add(handle, false, &adev)))  in acpi_scan_postponed_branch()
2577 	acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,  in acpi_scan_postponed_branch()
2596 		acpi_handle handle = dep->consumer;  in acpi_scan_postponed()  local
2603 		if (!acpi_fetch_acpi_dev(handle)) {  in acpi_scan_postponed()
2612 			acpi_scan_postponed_branch(handle);  in acpi_scan_postponed()
2721 int acpi_bus_scan(acpi_handle handle)  in acpi_bus_scan()  argument
2727 	if (ACPI_SUCCESS(acpi_bus_check_add(handle, true, &device)))  in acpi_bus_scan()
2728 		acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,  in acpi_bus_scan()