acpi-cpufreq: Add comment under ACPI_ADR_SPACE_SYSTEM_IO case

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policy->cur is now set by cpufreq core when cpufreq_driver->get() is defined and
so drivers aren't required to set it. When space_id is ACPI_ADR_SPACE_SYSTEM_IO
for acpi cpufreq driver it doesn't set ->get to a valid function pointer and so
policy->cur is required to be set by driver.

This is already followed in acpi-cpufreq driver. This patch adds a comment
describing why we need to set policy->cur from driver.

Suggested-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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Viresh Kumar 2013-10-16 23:58:10 +02:00 • committed by Rafael J. Wysocki

parent 076dec90fc

commit 1bab64d50e

1 changed files with 6 additions and 1 deletions

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drivers/cpufreq/acpi-cpufreq.c

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