[lm-sensors] Support for sch311x

[Marcin Dawidowicz]

Hi Juerg,

Thank you.

I've done short test of your driver and at first sight it seems to work 
quite well with SCH3112. It was tested on CP6012 CPU board from Kontron.

I found some issues which should be improved. One of those is resetting 
of alarms. Now, after alarm appeared it remains set - it is not cleared 
by sensor reading. (maybe not perfect but simplest would be resetting 
all alarms after sensors are read - look into my driver)

I think that temperature fault reading return improper values (see 
printout below).

Below is short snapshot of test:
.....
marcda at marcda-laptop:/lib/modules/2.6.22/kernel/drivers/hwmon$ sudo 
modprobe dme1737
Password:
marcda at marcda-laptop:/lib/modules/2.6.22/kernel/drivers/hwmon$
.....

.....
marcda at marcda-laptop:/lib/modules/2.6.22/kernel/drivers/hwmon$ dmesg |tail
[   26.916000] Bluetooth: HCI socket layer initialized
[   27.016000] Bluetooth: L2CAP ver 2.8
[   27.016000] Bluetooth: L2CAP socket layer initialized
[   27.052000] Bluetooth: RFCOMM socket layer initialized
[   27.052000] Bluetooth: RFCOMM TTY layer initialized
[   27.052000] Bluetooth: RFCOMM ver 1.8
[   33.604000] eth5: no IPv6 routers present
[ 3879.928000] PM: Adding info for platform:dme1737.2672
[ 3879.928000] dme1737 dme1737.2672: Found a SCH311X chip at 0x0a70
[ 3879.928000] dme1737 dme1737.2672: Optional features: pwm3=yes, 
pwm5=no, pwm6=no, fan3=yes, fan4=no, fan5=no, fan6=no.
marcda at marcda-laptop:/lib/modules/2.6.22/kernel/drivers/hwmon$
.....

.....
root at marcda-laptop:/sys/class/hwmon/hwmon0/device/driver/dme1737.2672# 
clear;for file in *_*; do echo "$file = `cat $file`"; done     cpu0_vid = 0
fan1_alarm = 0
fan1_input = 0
fan1_min = 0
fan1_type = 2
fan2_alarm = 0
fan2_input = 0
fan2_min = 0
fan2_type = 2
fan3_alarm = 0
fan3_input = 0
fan3_min = 0
fan3_type = 2
in0_alarm = 0
in0_input = 3610
in0_max = 6641
in0_min = 0
in1_alarm = 0
in1_input = 1625
in1_max = 2988
in1_min = 0
in2_alarm = 1
in2_input = 3303
in2_max = 3334
in2_min = 0
in3_alarm = 0
in3_input = 4993
in3_max = 6641
in3_min = 0
in4_alarm = 0
in4_input = 11965
in4_max = 15938
in4_min = 0
in5_alarm = 0
in5_input = 3309
in5_max = 4383
in5_min = 0
in6_alarm = 0
in6_input = 2983
in6_max = 4383
in6_min = 0
pwm1_auto_channels_zone = 1
pwm1_auto_point1_pwm = 128
pwm1_auto_point2_pwm = 255
pwm1_auto_pwm_min = 128
pwm1_enable = 0
pwm1_freq = 25000
pwm1_ramp_rate = 206
pwm2_auto_channels_zone = 2
pwm2_auto_point1_pwm = 128
pwm2_auto_point2_pwm = 255
pwm2_auto_pwm_min = 128
pwm2_enable = 0
pwm2_freq = 25000
pwm2_ramp_rate = 206
pwm3_auto_channels_zone = 4
pwm3_auto_point1_pwm = 128
pwm3_auto_point2_pwm = 255
pwm3_auto_pwm_min = 128
pwm3_enable = 0
pwm3_freq = 25000
pwm3_ramp_rate = 0
temp1_alarm = 0
temp1_fault = 0
temp1_input = 35562
temp1_max = 127000
temp1_min = -127000
temp1_offset = 0
temp2_alarm = 0
temp2_fault = 0
temp2_input = 33750
temp2_max = 127000
temp2_min = -127000
temp2_offset = 0
temp3_alarm = 1
temp3_fault = 0
temp3_input = -128000
temp3_max = 127000
temp3_min = -127000
temp3_offset = 0
zone1_auto_channels_temp = 1
zone1_auto_point1_temp = 90000
zone1_auto_point1_temp_hyst = 90000
zone1_auto_point2_temp = 122000
zone1_auto_point3_temp = 100000
zone2_auto_channels_temp = 2
zone2_auto_point1_temp = 90000
zone2_auto_point1_temp_hyst = 90000
zone2_auto_point2_temp = 122000
zone2_auto_point3_temp = 100000
zone3_auto_channels_temp = 4
zone3_auto_point1_temp = 90000
zone3_auto_point1_temp_hyst = 90000
zone3_auto_point2_temp = 122000
zone3_auto_point3_temp = 100000
root at marcda-laptop:/sys/class/hwmon/hwmon0/device/driver/dme1737.2672#
.....

I will let you know if I find something more.

Regards,
Marcin

Juerg Haefliger wrote:
> Hi Marcin,
>
> The attached updated dme1737 driver includes support for the sch311x
> chips. Could you please test it and report success/failure?
>
> Thanks
> ...juerg