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platform/x86: asus-wmi: Enhance detection of thermal data

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The obviously wrong value 1 for temperature device ID in this driver is
returned by at least some devices, including TUF Gaming series laptops,
instead of 0 as expected previously. Observable effect is that a
temp1_input in hwmon reads temperature near absolute zero.

Consider 0.1 K an erroneous value in addition to 0 K.

Signed-off-by: Yurii Pavlovskyi <yurii.pavlovskyi@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This commit is contained in:
Yurii Pavlovskyi 2019-05-14 21:05:46 +02:00 committed by Andy Shevchenko
parent 54a3121f00
commit 4fd1982545
1 changed files with 5 additions and 2 deletions
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7
drivers/platform/x86/asus-wmi.c
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@ -1428,8 +1428,11 @@ static umode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj,
else
ok = fan_attr <= asus->asus_hwmon_num_fans;
} else if (dev_id == ASUS_WMI_DEVID_THERMAL_CTRL) {
/* If value is zero, something is clearly wrong */
if (!value)
/*
* If the temperature value in deci-Kelvin is near the absolute
* zero temperature, something is clearly wrong
*/
if (value == 0 || value == 1)
ok = false;
} else if (fan_attr <= asus->asus_hwmon_num_fans && fan_attr != -1) {
ok = true;