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Reenable fan-off on all TF devices

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This commit is contained in:
Werner Sembach 2022-10-14 15:42:40 +02:00
parent e8dc238ae1
commit 493541f81c
1 changed files with 16 additions and 4 deletions
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20
src/tuxedo_io/tuxedo_io.c
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@ -360,6 +360,16 @@ static u32 uw_set_fan(u32 fan_index, u8 fan_speed)
else
return -EINVAL;
if (fan_speed == 0) {
// Avoid hard coded EC behaviour: Setting fan speed = 0x00 spins the fan up
// to 0x3c (30%) for 3 minutes before going to 0x00. Setting fan speed = 1
// also causes the fan to stop since on 2020 or later TF devices the
// microcontroller in the fan itself is intelligent enough to not try to
// start up the motor when the speed is to slow. Older devices don't use
// this fan controll anyway, but the else case below.
fan_speed = 1;
}
uniwill_write_ec_ram(addr_for_fan, fan_speed & 0xff);
}
else { // old workaround using full fan mode
@ -576,23 +586,25 @@ static long uniwill_ioctl_interface(struct file *file, unsigned int cmd, unsigne
copy_result = copy_to_user((void *) arg, &result, sizeof(result));
break;
case R_UW_FANS_OFF_AVAILABLE:
result = has_universal_ec_fan_control();
/*result = has_universal_ec_fan_control();
if (result == 1) {
result = 0;
}
else if (result == 0) {
result = 1;
}
}*/
result = 1;
copy_result = copy_to_user((void *) arg, &result, sizeof(result));
break;
case R_UW_FANS_MIN_SPEED:
result = has_universal_ec_fan_control();
/*result = has_universal_ec_fan_control();
if (result == 1) {
result = 20;
}
else if (result == 0) {
result = 0;
}
}*/
result = 20;
copy_result = copy_to_user((void *) arg, &result, sizeof(result));
break;
case R_UW_TDP0: