509 	struct pwm_export *export = pwmexport_from_dev(pwm_dev);  in pwm_from_dev()  local
511 	return export->pwm;  in pwm_from_dev()
530 	struct pwm_export *export = pwmexport_from_dev(pwm_dev);  in period_store()  local
531 	struct pwm_device *pwm = export->pwm;  in period_store()
540 	guard(mutex)(&export->lock);  in period_store()
565 	struct pwm_export *export = pwmexport_from_dev(pwm_dev);  in duty_cycle_store()  local
566 	struct pwm_device *pwm = export->pwm;  in duty_cycle_store()
575 	guard(mutex)(&export->lock);  in duty_cycle_store()
600 	struct pwm_export *export = pwmexport_from_dev(pwm_dev);  in enable_store()  local
601 	struct pwm_device *pwm = export->pwm;  in enable_store()
609 	guard(mutex)(&export->lock);  in enable_store()
656 	struct pwm_export *export = pwmexport_from_dev(pwm_dev);  in polarity_store()  local
657 	struct pwm_device *pwm = export->pwm;  in polarity_store()
669 	guard(mutex)(&export->lock);  in polarity_store()
711 	struct pwm_export *export = pwmexport_from_dev(pwm_dev);  in pwm_export_release()  local
713 	kfree(export);  in pwm_export_release()
718 	struct pwm_export *export;  in pwm_export_child()  local
725 	export = kzalloc(sizeof(*export), GFP_KERNEL);  in pwm_export_child()
726 	if (!export) {  in pwm_export_child()
731 	export->pwm = pwm;  in pwm_export_child()
732 	mutex_init(&export->lock);  in pwm_export_child()
734 	export->pwm_dev.release = pwm_export_release;  in pwm_export_child()
735 	export->pwm_dev.parent = pwmchip_dev;  in pwm_export_child()
736 	export->pwm_dev.devt = MKDEV(0, 0);  in pwm_export_child()
737 	export->pwm_dev.groups = pwm_groups;  in pwm_export_child()
738 	dev_set_name(&export->pwm_dev, "pwm%u", pwm->hwpwm);  in pwm_export_child()
740 	ret = device_register(&export->pwm_dev);  in pwm_export_child()
743 		put_device(&export->pwm_dev);  in pwm_export_child()
744 		export = NULL;  in pwm_export_child()
747 	pwm_prop[0] = kasprintf(GFP_KERNEL, "EXPORT=pwm%u", pwm->hwpwm);  in pwm_export_child()
811 static DEVICE_ATTR_WO(export);
851 /* takes export->lock on success */
857 	struct pwm_export *export;  in pwm_class_get_state()  local
866 	export = pwmexport_from_dev(pwm_dev);  in pwm_class_get_state()
869 	mutex_lock(&export->lock);  in pwm_class_get_state()
872 	return export;  in pwm_class_get_state()
875 static int pwm_class_apply_state(struct pwm_export *export,  in pwm_class_apply_state()  argument
882 	mutex_unlock(&export->lock);  in pwm_class_apply_state()
896 		struct pwm_export *export;  in pwm_class_resume_npwm()  local
898 		export = pwm_class_get_state(pwmchip_dev, pwm, &state);  in pwm_class_resume_npwm()
899 		if (!export)  in pwm_class_resume_npwm()
903 		if (!export->suspend.enabled) {  in pwm_class_resume_npwm()
905 			mutex_unlock(&export->lock);  in pwm_class_resume_npwm()
909 		state.enabled = export->suspend.enabled;  in pwm_class_resume_npwm()
910 		ret = pwm_class_apply_state(export, pwm, &state);  in pwm_class_resume_npwm()
927 		struct pwm_export *export;  in pwm_class_suspend()  local
929 		export = pwm_class_get_state(pwmchip_dev, pwm, &state);  in pwm_class_suspend()
930 		if (!export)  in pwm_class_suspend()
937 		export->suspend = state;  in pwm_class_suspend()
940 			mutex_unlock(&export->lock);  in pwm_class_suspend()
945 		ret = pwm_class_apply_state(export, pwm, &state);  in pwm_class_suspend()