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Commit 413fffc3 authored by Viresh Kumar's avatar Viresh Kumar Committed by Rafael J. Wysocki
Browse files

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: default avatarStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarRafael 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 */