opp: Not all power-domains are scalable

 *

 * This helper needs to be called once with a list of all genpd to attach.

 * Otherwise the original device structure will be used instead by the OPP core.

 *

 * The order of entries in the names array must match the order in which

 * "required-opps" are added in DT.

 */

struct opp_table *dev_pm_opp_attach_genpd(struct device *dev, const char **names)

{

	struct opp_table *opp_table;

	struct device *virt_dev;

	int index, ret = -EINVAL;

	int index = 0, ret = -EINVAL;

	const char **name = names;

	opp_table = dev_pm_opp_get_opp_table(dev);

		goto unlock;

	while (*name) {

		index = of_property_match_string(dev->of_node,

						 "power-domain-names", *name);

		if (index < 0) {

			dev_err(dev, "Failed to find power domain: %s (%d)\n",

				*name, index);

			goto err;

		}

		if (index >= opp_table->required_opp_count) {

			dev_err(dev, "Index can't be greater than required-opp-count - 1, %s (%d : %d)\n",

				*name, opp_table->required_opp_count, index);

		}

		opp_table->genpd_virt_devs[index] = virt_dev;

		index++;

		name++;

	}