181 static int pwm_export_child(struct device *parent, struct pwm_device *pwm)  in pwm_export_child()  argument
198 	export->child.parent = parent;  in pwm_export_child()
218 static int pwm_unexport_child(struct device *parent, struct pwm_device *pwm)  in pwm_unexport_child()  argument
225 	child = device_find_child(parent, pwm, pwm_unexport_match);  in pwm_unexport_child()
237 static ssize_t pwm_export_store(struct device *parent,  in pwm_export_store()  argument
241 	struct pwm_chip *chip = dev_get_drvdata(parent);  in pwm_export_store()
257 	ret = pwm_export_child(parent, pwm);  in pwm_export_store()
265 static ssize_t pwm_unexport_store(struct device *parent,  in pwm_unexport_store()  argument
269 	struct pwm_chip *chip = dev_get_drvdata(parent);  in pwm_unexport_store()
280 	ret = pwm_unexport_child(parent, &chip->pwms[hwpwm]);  in pwm_unexport_store()
286 static ssize_t npwm_show(struct device *parent, struct device_attribute *attr,  in npwm_show()  argument
289 	const struct pwm_chip *chip = dev_get_drvdata(parent);  in npwm_show()
309 static int pwmchip_sysfs_match(struct device *parent, const void *data)  in pwmchip_sysfs_match()  argument
311 	return dev_get_drvdata(parent) == data;  in pwmchip_sysfs_match()
316 	struct device *parent;  in pwmchip_sysfs_export()  local
322 	parent = device_create(&pwm_class, chip->dev, MKDEV(0, 0), chip,  in pwmchip_sysfs_export()
324 	if (IS_ERR(parent)) {  in pwmchip_sysfs_export()
332 	struct device *parent;  in pwmchip_sysfs_unexport()  local
334 	parent = class_find_device(&pwm_class, NULL, chip,  in pwmchip_sysfs_unexport()
336 	if (parent) {  in pwmchip_sysfs_unexport()
338 		put_device(parent);  in pwmchip_sysfs_unexport()
339 		device_unregister(parent);  in pwmchip_sysfs_unexport()