513 	struct pwm_export *export = pwmexport_from_dev(pwm_dev);  in pwm_from_dev()  local
515 	return export->pwm;  in pwm_from_dev()
534 	struct pwm_export *export = pwmexport_from_dev(pwm_dev);  in period_store()  local
535 	struct pwm_device *pwm = export->pwm;  in period_store()
544 	guard(mutex)(&export->lock);  in period_store()
569 	struct pwm_export *export = pwmexport_from_dev(pwm_dev);  in duty_cycle_store()  local
570 	struct pwm_device *pwm = export->pwm;  in duty_cycle_store()
579 	guard(mutex)(&export->lock);  in duty_cycle_store()
604 	struct pwm_export *export = pwmexport_from_dev(pwm_dev);  in enable_store()  local
605 	struct pwm_device *pwm = export->pwm;  in enable_store()
613 	guard(mutex)(&export->lock);  in enable_store()
660 	struct pwm_export *export = pwmexport_from_dev(pwm_dev);  in polarity_store()  local
661 	struct pwm_device *pwm = export->pwm;  in polarity_store()
673 	guard(mutex)(&export->lock);  in polarity_store()
715 	struct pwm_export *export = pwmexport_from_dev(pwm_dev);  in pwm_export_release()  local
717 	kfree(export);  in pwm_export_release()
722 	struct pwm_export *export;  in pwm_export_child()  local
729 	export = kzalloc(sizeof(*export), GFP_KERNEL);  in pwm_export_child()
730 	if (!export) {  in pwm_export_child()
735 	export->pwm = pwm;  in pwm_export_child()
736 	mutex_init(&export->lock);  in pwm_export_child()
738 	export->pwm_dev.release = pwm_export_release;  in pwm_export_child()
739 	export->pwm_dev.parent = pwmchip_dev;  in pwm_export_child()
740 	export->pwm_dev.devt = MKDEV(0, 0);  in pwm_export_child()
741 	export->pwm_dev.groups = pwm_groups;  in pwm_export_child()
742 	dev_set_name(&export->pwm_dev, "pwm%u", pwm->hwpwm);  in pwm_export_child()
744 	ret = device_register(&export->pwm_dev);  in pwm_export_child()
747 		put_device(&export->pwm_dev);  in pwm_export_child()
748 		export = NULL;  in pwm_export_child()
751 	pwm_prop[0] = kasprintf(GFP_KERNEL, "EXPORT=pwm%u", pwm->hwpwm);  in pwm_export_child()
815 static DEVICE_ATTR_WO(export);
855 /* takes export->lock on success */
861 	struct pwm_export *export;  in pwm_class_get_state()  local
870 	export = pwmexport_from_dev(pwm_dev);  in pwm_class_get_state()
873 	mutex_lock(&export->lock);  in pwm_class_get_state()
876 	return export;  in pwm_class_get_state()
879 static int pwm_class_apply_state(struct pwm_export *export,  in pwm_class_apply_state()  argument
886 	mutex_unlock(&export->lock);  in pwm_class_apply_state()
900 		struct pwm_export *export;  in pwm_class_resume_npwm()  local
902 		export = pwm_class_get_state(pwmchip_dev, pwm, &state);  in pwm_class_resume_npwm()
903 		if (!export)  in pwm_class_resume_npwm()
907 		if (!export->suspend.enabled) {  in pwm_class_resume_npwm()
909 			mutex_unlock(&export->lock);  in pwm_class_resume_npwm()
913 		state.enabled = export->suspend.enabled;  in pwm_class_resume_npwm()
914 		ret = pwm_class_apply_state(export, pwm, &state);  in pwm_class_resume_npwm()
931 		struct pwm_export *export;  in pwm_class_suspend()  local
933 		export = pwm_class_get_state(pwmchip_dev, pwm, &state);  in pwm_class_suspend()
934 		if (!export)  in pwm_class_suspend()
941 		export->suspend = state;  in pwm_class_suspend()
944 			mutex_unlock(&export->lock);  in pwm_class_suspend()
949 		ret = pwm_class_apply_state(export, pwm, &state);  in pwm_class_suspend()