diff options
| author | Thomas Renninger <trenn@suse.de> | 2007-04-19 15:48:34 +0200 |
|---|---|---|
| committer | Dave Jones <davej@redhat.com> | 2007-04-26 20:32:02 +0200 |
| commit | 22c970f3468a6766b362d57fa32ebb92cb8cd6db (patch) | |
| tree | 09e666c2c1f1ac93a2a6deec703d667cdc41b250 | |
| parent | Fix preemption warnings in speedstep-centrino.c (diff) | |
| download | linux-22c970f3468a6766b362d57fa32ebb92cb8cd6db.tar.xz linux-22c970f3468a6766b362d57fa32ebb92cb8cd6db.zip | |
[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 <trenn@suse.de>
Signed-off-by: Dave Jones <davej@redhat.com>
| -rw-r--r-- | 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 3162010900c9..fcb86dd8903d 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; |