31 	struct pwm_export *export = child_to_pwm_export(child);  in child_to_pwm_device()  local
33 	return export->pwm;  in child_to_pwm_device()
52 	struct pwm_export *export = child_to_pwm_export(child);  in period_store()  local
53 	struct pwm_device *pwm = export->pwm;  in period_store()
62 	mutex_lock(&export->lock);  in period_store()
66 	mutex_unlock(&export->lock);  in period_store()
87 	struct pwm_export *export = child_to_pwm_export(child);  in duty_cycle_store()  local
88 	struct pwm_device *pwm = export->pwm;  in duty_cycle_store()
97 	mutex_lock(&export->lock);  in duty_cycle_store()
101 	mutex_unlock(&export->lock);  in duty_cycle_store()
122 	struct pwm_export *export = child_to_pwm_export(child);  in enable_store()  local
123 	struct pwm_device *pwm = export->pwm;  in enable_store()
131 	mutex_lock(&export->lock);  in enable_store()
150 	mutex_unlock(&export->lock);  in enable_store()
181 	struct pwm_export *export = child_to_pwm_export(child);  in polarity_store()  local
182 	struct pwm_device *pwm = export->pwm;  in polarity_store()
194 	mutex_lock(&export->lock);  in polarity_store()
198 	mutex_unlock(&export->lock);  in polarity_store()
236 	struct pwm_export *export = child_to_pwm_export(child);  in pwm_export_release()  local
238 	kfree(export);  in pwm_export_release()
243 	struct pwm_export *export;  in pwm_export_child()  local
250 	export = kzalloc(sizeof(*export), GFP_KERNEL);  in pwm_export_child()
251 	if (!export) {  in pwm_export_child()
256 	export->pwm = pwm;  in pwm_export_child()
257 	mutex_init(&export->lock);  in pwm_export_child()
259 	export->child.release = pwm_export_release;  in pwm_export_child()
260 	export->child.parent = parent;  in pwm_export_child()
261 	export->child.devt = MKDEV(0, 0);  in pwm_export_child()
262 	export->child.groups = pwm_groups;  in pwm_export_child()
263 	dev_set_name(&export->child, "pwm%u", pwm->hwpwm);  in pwm_export_child()
265 	ret = device_register(&export->child);  in pwm_export_child()
268 		put_device(&export->child);  in pwm_export_child()
269 		export = NULL;  in pwm_export_child()
272 	pwm_prop[0] = kasprintf(GFP_KERNEL, "EXPORT=pwm%u", pwm->hwpwm);  in pwm_export_child()
336 static DEVICE_ATTR_WO(export);
376 /* takes export->lock on success */
382 	struct pwm_export *export;  in pwm_class_get_state()  local
391 	export = child_to_pwm_export(child);  in pwm_class_get_state()
394 	mutex_lock(&export->lock);  in pwm_class_get_state()
397 	return export;  in pwm_class_get_state()
400 static int pwm_class_apply_state(struct pwm_export *export,  in pwm_class_apply_state()  argument
407 	mutex_unlock(&export->lock);  in pwm_class_apply_state()
421 		struct pwm_export *export;  in pwm_class_resume_npwm()  local
423 		export = pwm_class_get_state(parent, pwm, &state);  in pwm_class_resume_npwm()
424 		if (!export)  in pwm_class_resume_npwm()
427 		state.enabled = export->suspend.enabled;  in pwm_class_resume_npwm()
428 		ret = pwm_class_apply_state(export, pwm, &state);  in pwm_class_resume_npwm()
445 		struct pwm_export *export;  in pwm_class_suspend()  local
447 		export = pwm_class_get_state(parent, pwm, &state);  in pwm_class_suspend()
448 		if (!export)  in pwm_class_suspend()
451 		export->suspend = state;  in pwm_class_suspend()
453 		ret = pwm_class_apply_state(export, pwm, &state);  in pwm_class_suspend()
500 			 "device_create failed for pwm_chip sysfs export\n");  in pwmchip_sysfs_export()