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authorTiezhu Yang <yangtiezhu@loongson.cn>2020-07-09 11:55:20 +0800
committerThomas Bogendoerfer <tsbogend@alpha.franken.de>2020-07-16 10:49:36 +0200
commit17cbb0702e89f36db7608a441e9557088bd790ea (patch)
treeea57de0e9f1a9f8cd673d42f3b965bf15f0389cb /drivers/platform
parentf17d3f218d8639ea6195ce2c027f2bd83ed12e30 (diff)
MIPS: Loongson: Reduce possible loop times and add log in do_thermal_timer()
Once the temperature of any CPUs is too high, it can power off immediately, no need to check the rest of CPUs, and it is better to print a log before power off, this is useful when analysis the abnormal issues. Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Zhi Li <lizhi01@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Diffstat (limited to 'drivers/platform')
-rw-r--r--drivers/platform/mips/cpu_hwmon.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/platform/mips/cpu_hwmon.c b/drivers/platform/mips/cpu_hwmon.c
index fa42b13f2e56..c9f35e5d0b89 100644
--- a/drivers/platform/mips/cpu_hwmon.c
+++ b/drivers/platform/mips/cpu_hwmon.c
@@ -153,18 +153,17 @@ static struct delayed_work thermal_work;
static void do_thermal_timer(struct work_struct *work)
{
- int i, value, temp_max = 0;
+ int i, value;
for (i = 0; i < nr_packages; i++) {
value = loongson3_cpu_temp(i);
- if (value > temp_max)
- temp_max = value;
+ if (value > CPU_THERMAL_THRESHOLD) {
+ pr_emerg("Power off due to high temp: %d\n", value);
+ orderly_poweroff(true);
+ }
}
- if (temp_max <= CPU_THERMAL_THRESHOLD)
- schedule_delayed_work(&thermal_work, msecs_to_jiffies(5000));
- else
- orderly_poweroff(true);
+ schedule_delayed_work(&thermal_work, msecs_to_jiffies(5000));
}
static int __init loongson_hwmon_init(void)