tree b7df2d323eb358e1633506ed360a191a41e1ae8d
parent 076dec90fc32c830184b0f0fa1842a6de1199bc6
author Viresh Kumar <viresh.kumar@linaro.org> 1381960690 +0200
committer Rafael J. Wysocki <rafael.j.wysocki@intel.com> 1381960690 +0200

acpi-cpufreq: Add comment under ACPI_ADR_SPACE_SYSTEM_IO case

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>