Hell Krzysztof,

On 11/22/2014 11:21 AM, Krzysztof Kozlowski wrote:
>>
>> By bisecting I found that the commit introducing both regressions is:
>>
>> ae43b32 ("ARM: 8202/1: dmaengine: pl330: Add runtime Power Management support v12")
>>
>> By reverting ae43b32, next-20141121 boots with both CONFIG_SND_SOC_SNOW=y
>> and *without* clk_ignore_unused.
>>
>> Krzysztof,
>>
>> I see you are the author of the patch, maybe you can take a look why this
>> is causing regressions in some Exynos boards?
> 
> Oh crap... I'll look at it on Monday. However I don't have Peach Pi so any 
> information would be useful. Can you post dmesg and your config? (is it 
> exynos_defconfig?)
>

Yes, I'm using exynos_defconfig. I'm testing with latest linux-next, HEAD:

commit ed6778a ("Add linux-next specific files for 20141121")

The boot log of the hang in the Exynos5420 Peach Pit is sent as an
attachment. CONFIG_SND_SOC_SNOW was enabled and without clk_ignore_unused.

> Additionally can you boot the board with DMATEST enabled (without reverting 
> my commit so probably with clk_ignore_unsed and with SND_SNOW disabled) and 
> run dmatest on all channels? Something like:
>    echo 2000 > /sys/module/dmatest/parameters/timeout
>    echo 2 > /sys/module/dmatest/parameters/iterations
>    for i in `ls /sys/class/dma/`
>    do
>      echo $i > /sys/module/dmatest/parameters/channel
>      echo 1 > /sys/module/dmatest/parameters/run
>    done
> 
> ... and post these results also.
>

I'm attaching the log of the tests as well. To run the test
CONFIG_SND_SOC_SNOW was disabled and booted with clk_ignore_unused.
 
> I will test it on Arndale Octa, maybe the cause is the same. Unfortunately 
> it seems Arndale Octa does not have any sound enabled in DTS so it may be 
> hard to test I2S bus (which is used by audio).
>

Ok, please let me know if you need anything else from me.
 
> Best regards,
> Krzysztof

Best regards,
Javier