83 static union acpi_object *amdgpu_atif_call(struct amdgpu_atif *atif,  in amdgpu_atif_call()  argument
108 	status = acpi_evaluate_object(atif->handle, NULL, &atif_arg,  in amdgpu_atif_call()
174 static int amdgpu_atif_verify_interface(struct amdgpu_atif *atif)  in amdgpu_atif_verify_interface()  argument
181 	info = amdgpu_atif_call(atif, ATIF_FUNCTION_VERIFY_INTERFACE, NULL);  in amdgpu_atif_verify_interface()
200 	amdgpu_atif_parse_notification(&atif->notifications, output.notification_mask);  in amdgpu_atif_verify_interface()
201 	amdgpu_atif_parse_functions(&atif->functions, output.function_bits);  in amdgpu_atif_verify_interface()
249 static int amdgpu_atif_get_notification_params(struct amdgpu_atif *atif)  in amdgpu_atif_get_notification_params()  argument
252 	struct amdgpu_atif_notification_cfg *n = &atif->notification_cfg;  in amdgpu_atif_get_notification_params()
257 	info = amdgpu_atif_call(atif, ATIF_FUNCTION_GET_SYSTEM_PARAMETERS,  in amdgpu_atif_get_notification_params()
317 static int amdgpu_atif_query_backlight_caps(struct amdgpu_atif *atif)  in amdgpu_atif_query_backlight_caps()  argument
332 	info = amdgpu_atif_call(atif,  in amdgpu_atif_query_backlight_caps()
350 	atif->backlight_caps.caps_valid = true;  in amdgpu_atif_query_backlight_caps()
351 	atif->backlight_caps.min_input_signal =  in amdgpu_atif_query_backlight_caps()
353 	atif->backlight_caps.max_input_signal =  in amdgpu_atif_query_backlight_caps()
371 static int amdgpu_atif_get_sbios_requests(struct amdgpu_atif *atif,  in amdgpu_atif_get_sbios_requests()  argument
378 	info = amdgpu_atif_call(atif, ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS,  in amdgpu_atif_get_sbios_requests()
416 	struct amdgpu_atif *atif = adev->atif;  in amdgpu_atif_handler()  local
426 	if (!atif ||  in amdgpu_atif_handler()
427 	    !atif->notification_cfg.enabled ||  in amdgpu_atif_handler()
428 	    event->type != atif->notification_cfg.command_code) {  in amdgpu_atif_handler()
436 	if (atif->functions.sbios_requests) {  in amdgpu_atif_handler()
440 		count = amdgpu_atif_get_sbios_requests(atif, &req);  in amdgpu_atif_handler()
450 			struct amdgpu_encoder *enc = atif->encoder_for_bl;  in amdgpu_atif_handler()
774 	struct amdgpu_atif *atif;  in amdgpu_acpi_init()  local
795 	atif = kzalloc(sizeof(*atif), GFP_KERNEL);  in amdgpu_acpi_init()
796 	if (!atif) {  in amdgpu_acpi_init()
800 	atif->handle = atif_handle;  in amdgpu_acpi_init()
803 	ret = amdgpu_atif_verify_interface(atif);  in amdgpu_acpi_init()
806 		kfree(atif);  in amdgpu_acpi_init()
809 	adev->atif = atif;  in amdgpu_acpi_init()
811 	if (atif->notifications.brightness_change) {  in amdgpu_acpi_init()
823 					atif->encoder_for_bl = enc;  in amdgpu_acpi_init()
830 	if (atif->functions.sbios_requests && !atif->functions.system_params) {  in amdgpu_acpi_init()
835 		atif->functions.system_params = true;  in amdgpu_acpi_init()
838 	if (atif->functions.system_params) {  in amdgpu_acpi_init()
839 		ret = amdgpu_atif_get_notification_params(atif);  in amdgpu_acpi_init()
844 			atif->notification_cfg.enabled = false;  in amdgpu_acpi_init()
848 	if (atif->functions.query_backlight_transfer_characteristics) {  in amdgpu_acpi_init()
849 		ret = amdgpu_atif_query_backlight_caps(atif);  in amdgpu_acpi_init()
853 			atif->backlight_caps.caps_valid = false;  in amdgpu_acpi_init()
856 		atif->backlight_caps.caps_valid = false;  in amdgpu_acpi_init()
869 	if (!adev->atif) {  in amdgpu_acpi_get_backlight_caps()
873 	caps->caps_valid = adev->atif->backlight_caps.caps_valid;  in amdgpu_acpi_get_backlight_caps()
874 	caps->min_input_signal = adev->atif->backlight_caps.min_input_signal;  in amdgpu_acpi_get_backlight_caps()
875 	caps->max_input_signal = adev->atif->backlight_caps.max_input_signal;  in amdgpu_acpi_get_backlight_caps()
888 	kfree(adev->atif);  in amdgpu_acpi_fini()