opp: of: Allow empty opp-table with opp-shared (6ee70e8c) · Commits · 戴 / test

The opp binding now allows to have an empty opp table and shared-opp to still describe that devices share v/f lines. When initialising an empty opp table, allow such case by: - treating such conditions with warnings in place of errors - don't fail on empty table Signed-off-by:

Nicola Mazzucato <nicola.mazzucato@arm.com> Signed-off-by:

Viresh Kumar <viresh.kumar@linaro.org>

drivers/opp/of.c

+5 −2

Original line number	Diff line number	Diff line
		@@ -169,7 +169,8 @@ static void _opp_table_alloc_required_tables(struct opp_table *opp_table,
		/* Traversing the first OPP node is all we need */
		np = of_get_next_available_child(opp_np, NULL);
		if (!np) {
		dev_err(dev, "Empty OPP table\n");
		dev_warn(dev, "Empty OPP table\n");

		return;
		}

		@@ -377,7 +378,9 @@ int dev_pm_opp_of_find_icc_paths(struct device *dev,
		struct icc_path **paths;

		ret = _bandwidth_supported(dev, opp_table);
		if (ret <= 0)
		if (ret == -EINVAL)
		return 0; /* Empty OPP table is a valid corner-case, let's not fail */
		else if (ret <= 0)
		return ret;

		ret = 0;

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