1120 	struct pwm_export *export = pwmexport_from_dev(pwm_dev);  in pwm_from_dev()  local
1122 	return export->pwm;  in pwm_from_dev()
1141 	struct pwm_export *export = pwmexport_from_dev(pwm_dev);  in period_store()  local
1142 	struct pwm_device *pwm = export->pwm;  in period_store()
1151 	guard(mutex)(&export->lock);  in period_store()
1176 	struct pwm_export *export = pwmexport_from_dev(pwm_dev);  in duty_cycle_store()  local
1177 	struct pwm_device *pwm = export->pwm;  in duty_cycle_store()
1186 	guard(mutex)(&export->lock);  in duty_cycle_store()
1211 	struct pwm_export *export = pwmexport_from_dev(pwm_dev);  in enable_store()  local
1212 	struct pwm_device *pwm = export->pwm;  in enable_store()
1220 	guard(mutex)(&export->lock);  in enable_store()
1267 	struct pwm_export *export = pwmexport_from_dev(pwm_dev);  in polarity_store()  local
1268 	struct pwm_device *pwm = export->pwm;  in polarity_store()
1280 	guard(mutex)(&export->lock);  in polarity_store()
1322 	struct pwm_export *export = pwmexport_from_dev(pwm_dev);  in pwm_export_release()  local
1324 	kfree(export);  in pwm_export_release()
1329 	struct pwm_export *export;  in pwm_export_child()  local
1336 	export = kzalloc_obj(*export);  in pwm_export_child()
1337 	if (!export) {  in pwm_export_child()
1342 	export->pwm = pwm;  in pwm_export_child()
1343 	mutex_init(&export->lock);  in pwm_export_child()
1345 	export->pwm_dev.release = pwm_export_release;  in pwm_export_child()
1346 	export->pwm_dev.parent = pwmchip_dev;  in pwm_export_child()
1347 	export->pwm_dev.devt = MKDEV(0, 0);  in pwm_export_child()
1348 	export->pwm_dev.groups = pwm_groups;  in pwm_export_child()
1349 	dev_set_name(&export->pwm_dev, "pwm%u", pwm->hwpwm);  in pwm_export_child()
1351 	ret = device_register(&export->pwm_dev);  in pwm_export_child()
1354 		put_device(&export->pwm_dev);  in pwm_export_child()
1355 		export = NULL;  in pwm_export_child()
1358 	pwm_prop[0] = kasprintf(GFP_KERNEL, "EXPORT=pwm%u", pwm->hwpwm);  in pwm_export_child()
1422 static DEVICE_ATTR_WO(export);
1462 /* takes export->lock on success */
1468 	struct pwm_export *export;  in pwm_class_get_state()  local
1477 	export = pwmexport_from_dev(pwm_dev);  in pwm_class_get_state()
1480 	mutex_lock(&export->lock);  in pwm_class_get_state()
1483 	return export;  in pwm_class_get_state()
1486 static int pwm_class_apply_state(struct pwm_export *export,  in pwm_class_apply_state()  argument
1493 	mutex_unlock(&export->lock);  in pwm_class_apply_state()
1507 		struct pwm_export *export;  in pwm_class_resume_npwm()  local
1509 		export = pwm_class_get_state(pwmchip_dev, pwm, &state);  in pwm_class_resume_npwm()
1510 		if (!export)  in pwm_class_resume_npwm()
1514 		if (!export->suspend.enabled) {  in pwm_class_resume_npwm()
1516 			mutex_unlock(&export->lock);  in pwm_class_resume_npwm()
1520 		state.enabled = export->suspend.enabled;  in pwm_class_resume_npwm()
1521 		ret = pwm_class_apply_state(export, pwm, &state);  in pwm_class_resume_npwm()
1538 		struct pwm_export *export;  in pwm_class_suspend()  local
1540 		export = pwm_class_get_state(pwmchip_dev, pwm, &state);  in pwm_class_suspend()
1541 		if (!export)  in pwm_class_suspend()
1548 		export->suspend = state;  in pwm_class_suspend()
1551 			mutex_unlock(&export->lock);  in pwm_class_suspend()
1556 		ret = pwm_class_apply_state(export, pwm, &state);  in pwm_class_suspend()