Information is unavailable on Idle stats & Frequency stats pages in PowerTop v2.4 with vexpress A9 Android.

[Botao]

On ARM Versatile Express A9 board with Linaro Android image:

https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-14.04-release/#build=1

The Idle stats & Frequency stats pages are empty after launched PowerTop v2.4.

For the issue in PowerDebug v0.7.1, please refer to Bug 1229658.

###########################################
This issue is observed on following images:
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-14.04-release/#build=1
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro/#build=331
https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-14.05-release/#build=2

[Amit Kucheria (amitk)]

Can you point me to a run of PM-QA on this board? It should tell us if it has cpuidle and cpufreq drivers.

[Mohammad Merajul Islam Molla (meraj-enigma)]

I tested on Linaro 14.01 Saucy server on Samsung Arndale Board with a custom kernel (config file attached) and found Idle stats & Frequency stats pages empty. I attached my kernel config file.

[sanjay singh rawat (sanjay-rawat)]

hello Meraj,
Does this attached patch helps to resolve the issue? thanks

[Mohammad Merajul Islam Molla (meraj-enigma)]

Hello Sanjay,

I test on both i386 and ARM (on Samsung Arndale using Ubuntu Saucy Server) and it seems to fix the issue.

- Meraj

[Mohammad Merajul Islam Molla (meraj-enigma)]

In my previous comment it should be read "Linaro Saucy server" instead of "Ubuntu Saucy Server".

[Amit Kucheria (amitk)]

Sanjay, please submit this patch upstream ASAP. We don't want to carry any delta against mainline powertop.

[Botao (botao-sun)]

On ARM Versatile Express A9 board with Linaro Android image:

https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro/#build=356

Data is available in all columns , with PowerTop v2.4