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cpufreq: Make the "scaling_governor" sysfs node pollable

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A userspace module programs different qos-rules depending on the
governor running in the system. Make the governor node
pollable, so that the userspace module can be triggered when
the value of the governor changes.

change-Id: Ic89c77c7d16b0f8954d59a211612e9a8e98a2c28
Signed-off-by: Amar Singhal <asinghal@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
This commit is contained in:
Amar Singhal
2012-05-25 14:40:05 -07:00
committed by Stephen Boyd
parent 1d75780282
commit dccac460c0
1 changed files with 2 additions and 0 deletions
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2
drivers/cpufreq/cpufreq.c
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@@ -477,6 +477,8 @@ static ssize_t store_scaling_governor(struct cpufreq_policy *policy,
policy->user_policy.policy = policy->policy;
policy->user_policy.governor = policy->governor;
sysfs_notify(&policy->kobj, NULL, "scaling_governor");
if (ret)
return ret;
else