85 static union acpi_object *amdgpu_atif_call(struct amdgpu_atif *atif,  in amdgpu_atif_call()  argument
110 	status = acpi_evaluate_object(atif->handle, NULL, &atif_arg,  in amdgpu_atif_call()
176 static int amdgpu_atif_verify_interface(struct amdgpu_atif *atif)  in amdgpu_atif_verify_interface()  argument
183 	info = amdgpu_atif_call(atif, ATIF_FUNCTION_VERIFY_INTERFACE, NULL);  in amdgpu_atif_verify_interface()
202 	amdgpu_atif_parse_notification(&atif->notifications, output.notification_mask);  in amdgpu_atif_verify_interface()
203 	amdgpu_atif_parse_functions(&atif->functions, output.function_bits);  in amdgpu_atif_verify_interface()
251 static int amdgpu_atif_get_notification_params(struct amdgpu_atif *atif)  in amdgpu_atif_get_notification_params()  argument
254 	struct amdgpu_atif_notification_cfg *n = &atif->notification_cfg;  in amdgpu_atif_get_notification_params()
259 	info = amdgpu_atif_call(atif, ATIF_FUNCTION_GET_SYSTEM_PARAMETERS,  in amdgpu_atif_get_notification_params()
319 static int amdgpu_atif_query_backlight_caps(struct amdgpu_atif *atif)  in amdgpu_atif_query_backlight_caps()  argument
334 	info = amdgpu_atif_call(atif,  in amdgpu_atif_query_backlight_caps()
352 	atif->backlight_caps.caps_valid = true;  in amdgpu_atif_query_backlight_caps()
353 	atif->backlight_caps.min_input_signal =  in amdgpu_atif_query_backlight_caps()
355 	atif->backlight_caps.max_input_signal =  in amdgpu_atif_query_backlight_caps()
373 static int amdgpu_atif_get_sbios_requests(struct amdgpu_atif *atif,  in amdgpu_atif_get_sbios_requests()  argument
380 	info = amdgpu_atif_call(atif, ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS,  in amdgpu_atif_get_sbios_requests()
418 	struct amdgpu_atif *atif = adev->atif;  in amdgpu_atif_handler()  local
428 	if (!atif ||  in amdgpu_atif_handler()
429 	    !atif->notification_cfg.enabled ||  in amdgpu_atif_handler()
430 	    event->type != atif->notification_cfg.command_code) {  in amdgpu_atif_handler()
438 	if (atif->functions.sbios_requests) {  in amdgpu_atif_handler()
442 		count = amdgpu_atif_get_sbios_requests(atif, &req);  in amdgpu_atif_handler()
451 			if (atif->bd) {  in amdgpu_atif_handler()
459 				backlight_device_set_brightness(atif->bd, req.backlight_level);  in amdgpu_atif_handler()
772 	struct amdgpu_atif *atif;  in amdgpu_acpi_init()  local
793 	atif = kzalloc(sizeof(*atif), GFP_KERNEL);  in amdgpu_acpi_init()
794 	if (!atif) {  in amdgpu_acpi_init()
798 	atif->handle = atif_handle;  in amdgpu_acpi_init()
801 	ret = amdgpu_atif_verify_interface(atif);  in amdgpu_acpi_init()
804 		kfree(atif);  in amdgpu_acpi_init()
807 	adev->atif = atif;  in amdgpu_acpi_init()
810 	if (atif->notifications.brightness_change) {  in amdgpu_acpi_init()
814 			atif->bd = dm->backlight_dev;  in amdgpu_acpi_init()
828 						atif->bd = dig->bl_dev;  in amdgpu_acpi_init()
837 	if (atif->functions.sbios_requests && !atif->functions.system_params) {  in amdgpu_acpi_init()
842 		atif->functions.system_params = true;  in amdgpu_acpi_init()
845 	if (atif->functions.system_params) {  in amdgpu_acpi_init()
846 		ret = amdgpu_atif_get_notification_params(atif);  in amdgpu_acpi_init()
851 			atif->notification_cfg.enabled = false;  in amdgpu_acpi_init()
855 	if (atif->functions.query_backlight_transfer_characteristics) {  in amdgpu_acpi_init()
856 		ret = amdgpu_atif_query_backlight_caps(atif);  in amdgpu_acpi_init()
860 			atif->backlight_caps.caps_valid = false;  in amdgpu_acpi_init()
863 		atif->backlight_caps.caps_valid = false;  in amdgpu_acpi_init()
876 	if (!adev->atif) {  in amdgpu_acpi_get_backlight_caps()
880 	caps->caps_valid = adev->atif->backlight_caps.caps_valid;  in amdgpu_acpi_get_backlight_caps()
881 	caps->min_input_signal = adev->atif->backlight_caps.min_input_signal;  in amdgpu_acpi_get_backlight_caps()
882 	caps->max_input_signal = adev->atif->backlight_caps.max_input_signal;  in amdgpu_acpi_get_backlight_caps()
895 	kfree(adev->atif);  in amdgpu_acpi_fini()