}
/**
- * of_pwm_request() - request a PWM via the PWM framework
+ * of_pwm_get() - request a PWM via the PWM framework
* @np: device node to get the PWM from
* @con_id: consumer name
*
* becomes mandatory for devices that look up the PWM device via the con_id
* parameter.
*/
-static struct pwm_device *of_pwm_request(struct device_node *np,
- const char *con_id)
+struct pwm_device *of_pwm_get(struct device_node *np, const char *con_id)
{
struct pwm_device *pwm = NULL;
struct of_phandle_args args;
return pwm;
}
+EXPORT_SYMBOL_GPL(of_pwm_get);
/**
* pwm_add_table() - register PWM device consumers
/* look up via DT first */
if (IS_ENABLED(CONFIG_OF) && dev && dev->of_node)
- return of_pwm_request(dev->of_node, con_id);
+ return of_pwm_get(dev->of_node, con_id);
/*
* We look up the provider in the static table typically provided by
}
EXPORT_SYMBOL_GPL(devm_pwm_get);
+/**
+ * devm_of_pwm_get() - resource managed of_pwm_get()
+ * @dev: device for PWM consumer
+ * @np: device node to get the PWM from
+ * @con_id: consumer name
+ *
+ * This function performs like of_pwm_get() but the acquired PWM device will
+ * automatically be released on driver detach.
+ */
+struct pwm_device *devm_of_pwm_get(struct device *dev, struct device_node *np,
+ const char *con_id)
+{
+ struct pwm_device **ptr, *pwm;
+
+ ptr = devres_alloc(devm_pwm_release, sizeof(**ptr), GFP_KERNEL);
+ if (!ptr)
+ return ERR_PTR(-ENOMEM);
+
+ pwm = of_pwm_get(np, con_id);
+ if (!IS_ERR(pwm)) {
+ *ptr = pwm;
+ devres_add(dev, ptr);
+ } else {
+ devres_free(ptr);
+ }
+
+ return pwm;
+}
+EXPORT_SYMBOL_GPL(devm_of_pwm_get);
+
static int devm_pwm_match(struct device *dev, void *res, void *data)
{
struct pwm_device **p = res;