241 static int pwm_export_child(struct device *parent, struct pwm_device *pwm)  in pwm_export_child()  argument
260 	export->child.parent = parent;  in pwm_export_child()
274 	kobject_uevent_env(&parent->kobj, KOBJ_CHANGE, pwm_prop);  in pwm_export_child()
285 static int pwm_unexport_child(struct device *parent, struct pwm_device *pwm)  in pwm_unexport_child()  argument
293 	child = device_find_child(parent, pwm, pwm_unexport_match);  in pwm_unexport_child()
299 	kobject_uevent_env(&parent->kobj, KOBJ_CHANGE, pwm_prop);  in pwm_unexport_child()
310 static ssize_t export_store(struct device *parent,  in export_store()  argument
314 	struct pwm_chip *chip = dev_get_drvdata(parent);  in export_store()
330 	ret = pwm_export_child(parent, pwm);  in export_store()
338 static ssize_t unexport_store(struct device *parent,  in unexport_store()  argument
342 	struct pwm_chip *chip = dev_get_drvdata(parent);  in unexport_store()
353 	ret = pwm_unexport_child(parent, &chip->pwms[hwpwm]);  in unexport_store()
359 static ssize_t npwm_show(struct device *parent, struct device_attribute *attr,  in npwm_show()  argument
362 	const struct pwm_chip *chip = dev_get_drvdata(parent);  in npwm_show()
377 static struct pwm_export *pwm_class_get_state(struct device *parent,  in pwm_class_get_state()  argument
387 	child = device_find_child(parent, pwm, pwm_unexport_match);  in pwm_class_get_state()
412 static int pwm_class_resume_npwm(struct device *parent, unsigned int npwm)  in pwm_class_resume_npwm()  argument
414 	struct pwm_chip *chip = dev_get_drvdata(parent);  in pwm_class_resume_npwm()
423 		export = pwm_class_get_state(parent, pwm, &state);  in pwm_class_resume_npwm()
443 static int pwm_class_suspend(struct device *parent)  in pwm_class_suspend()  argument
445 	struct pwm_chip *chip = dev_get_drvdata(parent);  in pwm_class_suspend()
454 		export = pwm_class_get_state(parent, pwm, &state);  in pwm_class_suspend()
476 			pwm_class_resume_npwm(parent, i);  in pwm_class_suspend()
484 static int pwm_class_resume(struct device *parent)  in pwm_class_resume()  argument
486 	struct pwm_chip *chip = dev_get_drvdata(parent);  in pwm_class_resume()
488 	return pwm_class_resume_npwm(parent, chip->npwm);  in pwm_class_resume()
499 static int pwmchip_sysfs_match(struct device *parent, const void *data)  in pwmchip_sysfs_match()  argument
501 	return dev_get_drvdata(parent) == data;  in pwmchip_sysfs_match()
506 	struct device *parent;  in pwmchip_sysfs_export()  local
512 	parent = device_create(&pwm_class, chip->dev, MKDEV(0, 0), chip,  in pwmchip_sysfs_export()
514 	if (IS_ERR(parent)) {  in pwmchip_sysfs_export()
522 	struct device *parent;  in pwmchip_sysfs_unexport()  local
525 	parent = class_find_device(&pwm_class, NULL, chip,  in pwmchip_sysfs_unexport()
527 	if (!parent)  in pwmchip_sysfs_unexport()
534 			pwm_unexport_child(parent, pwm);  in pwmchip_sysfs_unexport()
537 	put_device(parent);  in pwmchip_sysfs_unexport()
538 	device_unregister(parent);  in pwmchip_sysfs_unexport()