ACPI: CPPC: Stop reading desired_perf in cppc_get_perf()

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cppc_get_perf() has one in-tree caller, cppc_cpufreq_get_cpu_data().
It uses the function to preserve existing controls before writing them, but
overwrites desired_perf with highest_perf before the first cppc_set_perf().
Consequently, the current Desired Performance value is not consumed.

Remove the Desired Performance read from this aggregate getter and
document that the field is returned as zero.

Reviewed-by: Zhongqiu Han <zhongqiu.han@oss.qualcomm.com>
Signed-off-by: Christian Loehle <christian.loehle@arm.com>
Link: https://patch.msgid.link/20260803203531.1268651-4-christian.loehle@arm.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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Christian Loehle 2026-08-03 21:35:31 +01:00 • committed by Rafael J. Wysocki

parent d3576424e8

commit 334dd0ed87

1 changed files with 7 additions and 15 deletions

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drivers/acpi/cppc_acpi.c

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