topic Re: How to disable Thermal service on imx 8m NANO board? in i.MX Processors

How to disable Thermal service on imx 8m NANO board?

anurag16doshi — Thu, 04 Mar 2021 11:35:55 GMT

Hello,

We are working on iMX8M nano chipset. We have ported android 10 on imx8M nano evk and is working fine. Now we have ported same build on our custom hardware, and tried to launch our android app using "adb shell monkey --pct-syskeys 0 -s 13 -p com.example.myapplication -v 500" command,we get the following prints on logcat continuously regarding thermal service.we are not going to use thermal service in end application. Can anyone guide me how i can disable this thermal service so that system will not look for temperature sensor values and wont perform any operation related to thermal service

The difference between evk and custom hardware is that the EVK has 4 cores and custom board has single core.

Below are the debug prints

logcat logs-

03-01 14:51:11.591 337 357 W /vendor/bin/hw/android.hardware.thermal@2.0-service.imx: Failed to read sensor: cpu-thermal: Try again
03-01 14:51:11.591 337 357 E /vendor/bin/hw/android.hardware.thermal@2.0-service.imx: readTemperature: sensor not found: cpu-thermal
03-01 14:51:11.591 337 357 E /vendor/bin/hw/android.hardware.thermal@2.0-service.imx: thermalWatcherCallbackFunc: error reading temperature

Regards,

Re: How to disable Thermal service on imx 8m NANO board?

Zhiming_Liu — Fri, 05 Mar 2021 03:02:09 GMT

Comment that in /android_build/device/nxp/imx8m/evk_8mn/evk_8mn.mk

# Thermal HAL PRODUCT_PACKAGES += \ android.hardware.thermal@2.0-service.imx PRODUCT_COPY_FILES += \ device/nxp/imx8m/evk_8mn/thermal_info_config_imx8mn.json:$(TARGET_COPY_OUT_VENDOR)/etc/configs/thermal_info_config_imx8mn.json \ device/nxp/imx8m/evk_8mn/external_camera_config.xml:$(TARGET_COPY_OUT_VENDOR)/etc/external_camera_config.xml

Re: How to disable Thermal service on imx 8m NANO board?

anurag16doshi — Fri, 05 Mar 2021 06:01:07 GMT

Thanks for the response!

I tried this but no luck.still getting the below debug prints in logcat.

Any other solution?

03-01 14:52:08.444 341 361 W /vendor/bin/hw/android.hardware.thermal@2.0-service.imx: Failed to read sensor: cpu-thermal: Try again
03-01 14:52:08.444 341 361 E /vendor/bin/hw/android.hardware.thermal@2.0-service.imx: readTemperature: sensor not found: cpu-thermal
03-01 14:52:08.444 341 361 E /vendor/bin/hw/android.hardware.thermal@2.0-service.imx: thermalWatcherCallbackFunc: error reading temperature for sensor: cpu-thermal

Re: How to disable Thermal service on imx 8m NANO board?

qazzak — Tue, 07 Dec 2021 17:09:00 GMT

Have you tried the following adb command to override the reported system Thermal level ?:

adb shell cmd thermalservice override-status 0

it forces the system to report the Zero level(i.e. cool) state.

To reset back to normal operation, use:

adb shell cmd thermalservice reset