opp: Allow opp-level to be set to 0 (a5663c9b) · Commits · 戴 / test

drivers/opp/core.c

+0 −3

Original line number	Diff line number	Diff line
		@@ -2109,9 +2109,6 @@ int dev_pm_opp_xlate_performance_state(struct opp_table *src_table,
		int dest_pstate = -EINVAL;
		int i;

		if (!pstate)
		return 0;

		/*
		* Normally the src_table will have the "required_opps" property set to
		* point to one of the OPPs in the dst_table, but in some cases the

+7 −13

Original line number	Diff line number	Diff line
		@@ -842,7 +842,7 @@ free_opp:
		static int _of_add_opp_table_v2(struct device dev, struct opp_table opp_table)
		{
		struct device_node *np;
		int ret, count = 0, pstate_count = 0;
		int ret, count = 0;
		struct dev_pm_opp *opp;

		/* OPP table is already initialized for the device */
		@@ -876,19 +876,13 @@ static int _of_add_opp_table_v2(struct device dev, struct opp_table opp_table)
		goto remove_static_opp;
		}

		list_for_each_entry(opp, &opp_table->opp_list, node)
		pstate_count += !!opp->pstate;

		/* Either all or none of the nodes shall have performance state set */
		if (pstate_count && pstate_count != count) {
		dev_err(dev, "Not all nodes have performance state set (%d: %d)\n",
		count, pstate_count);
		ret = -ENOENT;
		goto remove_static_opp;
		}

		if (pstate_count)
		list_for_each_entry(opp, &opp_table->opp_list, node) {
		/* Any non-zero performance state would enable the feature */
		if (opp->pstate) {
		opp_table->genpd_performance_state = true;
		break;
		}
		}

		return 0;