clock/reset/regulator

	return ret;
}

/***    helper functions   ***/

const char *__clk_get_name(const struct clk *clk)
{
	return !clk ? NULL : clk->core->name;
}
EXPORT_SYMBOL_GPL(__clk_get_name);

const char *clk_hw_get_name(const struct clk_hw *hw)
{
	return hw->core->name;
}
EXPORT_SYMBOL_GPL(clk_hw_get_name);

struct clk_hw *__clk_get_hw(struct clk *clk)
{
	return !clk ? NULL : clk->core->hw;
}
EXPORT_SYMBOL_GPL(__clk_get_hw);

unsigned int clk_hw_get_num_parents(const struct clk_hw *hw)
{
	return hw->core->num_parents;
}
EXPORT_SYMBOL_GPL(clk_hw_get_num_parents);

struct clk_hw *clk_hw_get_parent(const struct clk_hw *hw)
{
	return hw->core->parent ? hw->core->parent->hw : NULL;
}
EXPORT_SYMBOL_GPL(clk_hw_get_parent);

static struct clk_core *__clk_lookup_subtree(const char *name,
					     struct clk_core *core)
{
	struct clk_core *child;
	struct clk_core *ret;

 *
 * This is used to explicitly acquire a reset control for exclusive use. Note
 * that exclusive resets are requested as acquired by default. In order for a
 * second consumer to be able to control the reset, the first consumer has to
 * release it first. Typically the easiest way to achieve this is to call the
 * reset_control_get_exclusive_released() to obtain an instance of the reset
 * control. Such reset controls are not acquired by default.
 *
 * Consumers implementing shared access to an exclusive reset need to follow
 * a specific protocol in order to work together. Before consumers can change
 * a reset they must acquire exclusive access using reset_control_acquire().
 * After they are done operating the reset, they must release exclusive access
 * with a call to reset_control_release(). Consumers are not granted exclusive
 * access to the reset as long as another consumer hasn't released a reset.
 *
 * See also: reset_control_release()
 */
int reset_control_acquire(struct reset_control *rstc)
{
	struct reset_control *rc;

	if (!rstc)
		return 0;

	if (WARN_ON(IS_ERR(rstc)))
		return -EINVAL;

	if (reset_control_is_array(rstc))
		return reset_control_array_acquire(rstc_to_array(rstc));

	mutex_lock(&reset_list_mutex);

	if (rstc->acquired) {
		mutex_unlock(&reset_list_mutex);
		return 0;
	}

	list_for_each_entry(rc, &rstc->rcdev->reset_control_head, list) {
		if (rstc != rc && rstc->id == rc->id) {
			if (rc->acquired) {