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Commit 61d8e7c7 authored by Viresh Kumar's avatar Viresh Kumar
Browse files

OPP: Identify and mark genpd OPP tables 



We need to handle genpd OPP tables differently, this is already the case
at one location and will be extended going forward. Add another field to
the OPP table to check if the table belongs to a genpd or not.

Reviewed-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
parent 560928b2

drivers/opp/of.c

+4 −2
Original line number Diff line number Diff line
@@ -92,6 +92,9 @@ void _of_init_opp_table(struct opp_table *opp_table, struct device *dev, 
	of_property_read_u32(np, "voltage-tolerance",

			     &opp_table->voltage_tolerance_v1);



	if (of_find_property(np, "#power-domain-cells", NULL))

		opp_table->is_genpd = true;



	/* Get OPP table node */

	opp_np = _opp_of_get_opp_desc_node(np, index);

	of_node_put(np);
@@ -326,8 +329,7 @@ static struct dev_pm_opp *_opp_add_static_v2(struct opp_table *opp_table, 
	ret = of_property_read_u64(np, "opp-hz", &rate);

	if (ret < 0) {

		/* "opp-hz" is optional for devices like power domains. */

		if (!of_find_property(dev->of_node, "#power-domain-cells",

				      NULL)) {

		if (!opp_table->is_genpd) {

			dev_err(dev, "%s: opp-hz not found\n", __func__);

			goto free_opp;

		}

drivers/opp/opp.h

+2 −0
Original line number Diff line number Diff line
@@ -140,6 +140,7 @@ enum opp_table_access { 
 * @regulators: Supply regulators

 * @regulator_count: Number of power supply regulators

 * @genpd_performance_state: Device's power domain support performance state.

 * @is_genpd: Marks if the OPP table belongs to a genpd.

 * @set_opp: Platform specific set_opp callback

 * @set_opp_data: Data to be passed to set_opp callback

 * @dentry:	debugfs dentry pointer of the real device directory (not links).
@@ -178,6 +179,7 @@ struct opp_table { 
	struct regulator **regulators;

	unsigned int regulator_count;

	bool genpd_performance_state;

	bool is_genpd;



	int (*set_opp)(struct dev_pm_set_opp_data *data);

	struct dev_pm_set_opp_data *set_opp_data;