diff options
| author | Ulf Hansson <ulf.hansson@linaro.org> | 2023-08-25 13:26:31 +0200 |
|---|---|---|
| committer | Sudeep Holla <sudeep.holla@arm.com> | 2023-09-21 16:35:14 +0100 |
| commit | 92b2028b00ff987272a10fee980c7412ae7ebea6 (patch) | |
| tree | 9cc69e89ed986614760321dcd20a1043c52503e9 /drivers/cpufreq | |
| parent | 0ead1f3e158c44aa274f2d5c49be947fbfcdffe0 (diff) | |
| download | linux-92b2028b00ff987272a10fee980c7412ae7ebea6.tar.gz | |
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: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20230825112633.236607-12-ulf.hansson@linaro.org
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Diffstat (limited to 'drivers/cpufreq')
| -rw-r--r-- | drivers/cpufreq/scmi-cpufreq.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/drivers/cpufreq/scmi-cpufreq.c b/drivers/cpufreq/scmi-cpufreq.c index 78f53e3880941..c8a7ccc42c164 100644 --- a/drivers/cpufreq/scmi-cpufreq.c +++ b/drivers/cpufreq/scmi-cpufreq.c @@ -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; - - if (of_parse_phandle_with_args(cpu_dev->of_node, "clocks", - "#clock-cells", 0, &clkspec)) - return -EINVAL; + 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(np, "power-domains", + "#power-domain-cells", index, + &domain_id)) + return -EINVAL; + } - return clkspec.args[0]; + return domain_id.args[0]; } static int |