Drivers supporting multiple clusters or multiple 'struct cpufreq_policy' instances may need to keep some per-policy data. If the core doesn't support them, 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 completely for driver's internal use.
Signed-off-by: Viresh Kumar viresh.kumar@linaro.org --- include/linux/cpufreq.h | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index ec4112d..d4b1108 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -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 */