A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 19:21:31 -04:00
Code Issues Projects Releases Packages Wiki Activity

[CPUFREQ] Only check for transition latency on problematic governors (kconfig fix)

Browse source 
Cc: Adrian Bunk <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Dave Jones <[email protected]>
This commit is contained in:
Thomas Renninger 2007-10-02 13:28:13 -07:00 • committed by Dave Jones
commit 6afde10c3f
2 changed files with 22 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

27
drivers/cpufreq/cpufreq.c
View file

@ -1484,17 +1484,30 @@ static int __cpufreq_governor(struct cpufreq_policy *policy,
unsigned int event)
{
int ret;
struct cpufreq_governor *gov = CPUFREQ_PERFORMANCE_GOVERNOR;
/* Only must be defined when default governor is known to have latency
restrictions, like e.g. conservative or ondemand.
That this is the case is already ensured in Kconfig
*/
#ifdef CONFIG_CPU_FREQ_GOV_PERFORMANCE
struct cpufreq_governor *gov = &cpufreq_gov_performance;
#else
struct cpufreq_governor *gov = NULL;
#endif
if (policy->governor->max_transition_latency &&
policy->cpuinfo.transition_latency >
policy->governor->max_transition_latency) {
printk(KERN_WARNING "%s governor failed, too long"
" transition latency of HW, fallback"
" to %s governor\n",
policy->governor->name,
gov->name);
policy->governor = gov;
if (!gov)
return -EINVAL;
else {
printk(KERN_WARNING "%s governor failed, too long"
" transition latency of HW, fallback"
" to %s governor\n",
policy->governor->name,
gov->name);
policy->governor = gov;
}
}
if (!try_module_get(policy->governor->owner))