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Subject[PATCH 1/2] cpufreq: Add support for per-policy driver data
Date
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 */
--
2.0.0.rc2


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