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Power management fixes for v4.15-rc2

Browse source 
These add missing module information to the Mediatek cpufreq driver
 module (Jesse Chan), fix config dependencies for the Loongson cpufreq
 driver (James Hogan) and fix two issues related to CPU offline in
 the cpupower utility (Abhishek Goel).
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Merge tag 'pm-4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:

 - add missing module information to the Mediatek cpufreq driver module
   (Jesse Chan)

 - fix config dependencies for the Loongson cpufreq driver (James Hogan)

 - fix two issues related to CPU offline in the cpupower utility
   (Abhishek Goel).

* tag 'pm-4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: mediatek: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE
  cpufreq: Add Loongson machine dependencies
  cpupower : Fix cpupower working when cpu0 is offline
  cpupowerutils: bench - Fix cpu online check
This commit is contained in:
Linus Torvalds 2017-11-30 18:45:55 -05:00
commit 0cf710f8c6
4 changed files with 13 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/cpufreq/Kconfig
View file

@ -275,6 +275,7 @@ config BMIPS_CPUFREQ
config LOONGSON2_CPUFREQ
tristate "Loongson2 CPUFreq Driver"
depends on LEMOTE_MACH2F
help
This option adds a CPUFreq driver for loongson processors which
support software configurable cpu frequency.
@ -287,6 +288,7 @@ config LOONGSON2_CPUFREQ
config LOONGSON1_CPUFREQ
tristate "Loongson1 CPUFreq Driver"
depends on LOONGSON1_LS1B
help
This option adds a CPUFreq driver for loongson1 processors which
support software configurable cpu frequency.

4
drivers/cpufreq/mediatek-cpufreq.c
View file

@ -620,3 +620,7 @@ static int __init mtk_cpufreq_driver_init(void)
return 0;
}
device_initcall(mtk_cpufreq_driver_init);
MODULE_DESCRIPTION("MediaTek CPUFreq driver");
MODULE_AUTHOR("Pi-Cheng Chen <pi-cheng.chen@linaro.org>");
MODULE_LICENSE("GPL v2");

2
tools/power/cpupower/bench/system.c
View file

@ -61,7 +61,7 @@ int set_cpufreq_governor(char *governor, unsigned int cpu)
dprintf("set %s as cpufreq governor\n", governor);
if (cpupower_is_cpu_online(cpu) != 0) {
if (cpupower_is_cpu_online(cpu) != 1) {
perror("cpufreq_cpu_exists");
fprintf(stderr, "error: cpu %u does not exist\n", cpu);
return -1;

9
tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c
View file

@ -130,15 +130,18 @@ static struct cpuidle_monitor *cpuidle_register(void)
{
int num;
char *tmp;
int this_cpu;
this_cpu = sched_getcpu();
/* Assume idle state count is the same for all CPUs */
cpuidle_sysfs_monitor.hw_states_num = cpuidle_state_count(0);
cpuidle_sysfs_monitor.hw_states_num = cpuidle_state_count(this_cpu);
if (cpuidle_sysfs_monitor.hw_states_num <= 0)
return NULL;
for (num = 0; num < cpuidle_sysfs_monitor.hw_states_num; num++) {
tmp = cpuidle_state_name(0, num);
tmp = cpuidle_state_name(this_cpu, num);
if (tmp == NULL)
continue;
@ -146,7 +149,7 @@ static struct cpuidle_monitor *cpuidle_register(void)
strncpy(cpuidle_cstates[num].name, tmp, CSTATE_NAME_LEN - 1);
free(tmp);
tmp = cpuidle_state_desc(0, num);
tmp = cpuidle_state_desc(this_cpu, num);
if (tmp == NULL)
continue;
strncpy(cpuidle_cstates[num].desc, tmp, CSTATE_DESC_LEN - 1);