Commit 413fffc3 authored Aug 28, 2014 by Viresh Kumar Committed by Rafael J. Wysocki Sep 09, 2014

cpufreq: Add support for per-policy driver data

Drivers supporting multiple clusters or multiple 'struct cpufreq_policy'
instances may need to keep per-policy data. If the core doesn't provide support
for that, they might do it in the most unoptimized way: 'per-cpu' data.

This patch adds another field in struct cpufreq_policy: 'driver_data'. It isn't
accessed by core and is for driver's internal use only.

Tested-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

parent d3599920

include/linux/cpufreq.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -112,6 +112,9 @@ struct cpufreq_policy {
		spinlock_t transition_lock;
		wait_queue_head_t transition_wait;
		struct task_struct transition_task; / Task which is doing the transition */

		/* For cpufreq driver's internal use */
		void *driver_data;
		};

		/* Only for ACPI */

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