Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=22c970f3468a6766b362d57fa32ebb92cb8cd6db
Commit: 22c970f3468a6766b362d57fa32ebb92cb8cd6db
Parent: e8e49190f64896afe79f7136a67c2bdefbd3e322
Author: Thomas Renninger <[EMAIL PROTECTED]>
AuthorDate: Thu Apr 19 15:48:34 2007 +0200
Committer: Dave Jones <[EMAIL PROTECTED]>
CommitDate: Thu Apr 26 14:32:02 2007 -0400
[CPUFREQ] Fix limited cpufreq when booted on battery
References:
https://bugzilla.novell.com/show_bug.cgi?id=231107
https://bugzilla.novell.com/show_bug.cgi?id=264077
Fix limited cpufreq when booted on battery
If booted on battery:
cpufreq_set_policy (evil) is invoked which calls verify_within_limits.
max_freq gets lowered and therefore users_policy.max, which
is used to restore higher freqs via update_policy later is set to the
already limited frequency -> you can never go up again, even BIOS
allows higher freqs later.
Signed-off-by: Thomas Renninger <[EMAIL PROTECTED]>
Signed-off-by: Dave Jones <[EMAIL PROTECTED]>
---
drivers/cpufreq/cpufreq.c | 10 ++++++++--
1 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 3162010..fcb86dd 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -768,6 +768,9 @@ static int cpufreq_add_dev (struct sys_device * sys_dev)
unlock_policy_rwsem_write(cpu);
goto err_out;
}
+ policy->user_policy.min = policy->cpuinfo.min_freq;
+ policy->user_policy.max = policy->cpuinfo.max_freq;
+ policy->user_policy.governor = policy->governor;
#ifdef CONFIG_SMP
for_each_cpu_mask(j, policy->cpus) {
@@ -858,10 +861,13 @@ static int cpufreq_add_dev (struct sys_device * sys_dev)
policy->governor = NULL; /* to assure that the starting sequence is
* run in cpufreq_set_policy */
- unlock_policy_rwsem_write(cpu);
/* set default policy */
- ret = cpufreq_set_policy(&new_policy);
+ ret = __cpufreq_set_policy(policy, &new_policy);
+ policy->user_policy.policy = policy->policy;
+
+ unlock_policy_rwsem_write(cpu);
+
if (ret) {
dprintk("setting policy failed\n");
goto err_out_unregister;
-
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