Commit 92b2028b authored by Ulf Hansson's avatar Ulf Hansson Committed by Sudeep Holla
Browse files

cpufreq: scmi: Add support to parse domain-id using #power-domain-cells 



The performance domain-id can be described in DT using the power-domains
property or the clock property. The latter is already supported, so let's
add support for the power-domains too.

Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
Acked-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20230825112633.236607-12-ulf.hansson@linaro.org


Signed-off-by: default avatarSudeep Holla <sudeep.holla@arm.com>
parent 0ead1f3e

drivers/cpufreq/scmi-cpufreq.c

+18 −6
Original line number Diff line number Diff line
@@ -72,13 +72,25 @@ static unsigned int scmi_cpufreq_fast_switch(struct cpufreq_policy *policy, 


static int scmi_cpu_domain_id(struct device *cpu_dev)

{

	struct of_phandle_args clkspec;

	struct device_node *np = cpu_dev->of_node;

	struct of_phandle_args domain_id;

	int index;



	if (of_parse_phandle_with_args(np, "clocks", "#clock-cells", 0,

				       &domain_id)) {

		/* Find the corresponding index for power-domain "perf". */

		index = of_property_match_string(np, "power-domain-names",

						 "perf");

		if (index < 0)

			return -EINVAL;



	if (of_parse_phandle_with_args(cpu_dev->of_node, "clocks",

				       "#clock-cells", 0, &clkspec))

		if (of_parse_phandle_with_args(np, "power-domains",

					       "#power-domain-cells", index,

					       &domain_id))

			return -EINVAL;

	}



	return clkspec.args[0];

	return domain_id.args[0];

}



static int