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cpufreq: scmi: Prepare to move OF parsing of domain-id to cpufreq

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The OF parsing of the clock domain specifier seems to better belong in the
scmi cpufreq driver, rather than being implemented behind the generic
->device_domain_id() perf protocol ops.

To prepare to remove the ->device_domain_id() ops, let's implement the OF
parsing in the scmi cpufreq driver instead.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20230825112633.236607-4-ulf.hansson@linaro.org
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
This commit is contained in:
Ulf Hansson
2023-08-25 13:26:23 +02:00
committed by Sudeep Holla
parent 3d99ed6072
commit e336baa419
1 changed files with 15 additions and 4 deletions
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19
drivers/cpufreq/scmi-cpufreq.c
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@@ -70,13 +70,24 @@ static unsigned int scmi_cpufreq_fast_switch(struct cpufreq_policy *policy,
return 0;
}
static int scmi_cpu_domain_id(struct device *cpu_dev)
{
struct of_phandle_args clkspec;
if (of_parse_phandle_with_args(cpu_dev->of_node, "clocks",
"#clock-cells", 0, &clkspec))
return -EINVAL;
return clkspec.args[0];
}
static int
scmi_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask)
{
int cpu, domain, tdomain;
struct device *tcpu_dev;
domain = perf_ops->device_domain_id(cpu_dev);
domain = scmi_cpu_domain_id(cpu_dev);
if (domain < 0)
return domain;
@@ -88,7 +99,7 @@ scmi_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask)
if (!tcpu_dev)
continue;
tdomain = perf_ops->device_domain_id(tcpu_dev);
tdomain = scmi_cpu_domain_id(tcpu_dev);
if (tdomain == domain)
cpumask_set_cpu(cpu, cpumask);
}
@@ -104,7 +115,7 @@ scmi_get_cpu_power(struct device *cpu_dev, unsigned long *power,
unsigned long Hz;
int ret, domain;
domain = perf_ops->device_domain_id(cpu_dev);
domain = scmi_cpu_domain_id(cpu_dev);
if (domain < 0)
return domain;
@@ -209,7 +220,7 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy)
}
priv->cpu_dev = cpu_dev;
priv->domain_id = perf_ops->device_domain_id(cpu_dev);
priv->domain_id = scmi_cpu_domain_id(cpu_dev);
policy->driver_data = priv;
policy->freq_table = freq_table;