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edison-fw / meta-intel-edison

Here is the meta-intel-edison that builds, tries to stay up to date. Master is based on Yocto Poky Gatesgarth LTS 5.10.yy vanilla kernels. It builds a 32bit kernel (Gatesgarth branch 64bit) with ACPI enabled and corresponding rootfs. Telegram group: https://t.me/IntelEdison Web-site:
https://edison-fw.github.io/meta-intel-edison/
MIT License
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SoC_DT0 and SoC_DT1 (intel temperature sensors) not available #63

Closed razvan-becheriu closed 4 years ago

razvan-becheriu commented 5 years ago

Hi,

The intel temperature drivers are not available in thud version. I have tried to enable the drivers in the kernel with no success. Can you point out what are the kernel configuration parameters I need to enable/disable so that I can access the intel temperature sensors trough /sys/class/thermal/ interface?

Thank you, Razvan

htot commented 5 years ago

Good question. I wasn't aware that the original kernel had access to thermal sensors. AFAIK we have access to the PMIC which has some temperature sensors attached: https://edison.internet-share.com/wiki/PMIC

Otherwise, we are using the kernel from Andy Shevchenko and it might be better to post this question there: https://github.com/andy-shev/linux

razvan-becheriu commented 5 years ago

https://github.com/andy-shev/linux/issues/26

andy-shev: In the original BSP the drivers/thermal/intel_mrfl_thermal.c provides such functionality. As far as I know there is no similar functionality provided in vanilla kernel. Note, the vanilla should support rather ACPI approach to use DTS.

razvan-becheriu commented 5 years ago

I have found that using hwmon you can actually get the temperature: cat /sys/class/hwmon/hwmon0/temp2_label Core 0 cat /sys/class/hwmon/hwmon0/temp2_input 55000 cat /sys/class/hwmon/hwmon0/temp3_label Core 1 cat /sys/class/hwmon/hwmon0/temp3_input 56000

this works for me. you can close this issue if it is of no interest for you either.

andy-shev commented 4 years ago

@htot, I guess you may close this for now. I doubt we will see the request to have a comprehensive thermal solution for this any time in the future.

htot commented 4 years ago

I see. This same hwmon is also enabled on ubuntu. I'll consider to make it optionally enabled.