Re: [PATCH 1/2] TSD: arm64: dts: rockchip: use codec as clock master

From: Krzysztof Kozlowski
Date: Fri Aug 25 2023 - 02:50:23 EST


On 23/08/2023 14:19, Jakob Unterwurzacher wrote:
> From: Ermin Sunj <ermin.sunj@xxxxxxxxxxxxxxxxxxxxx>
>
> If the codec is not the clock master, the MCLK needs to be
> synchronous to both I2S_SCL ans I2S_LRCLK. We do not have that
> on Haikou, causing distorted audio.
>
> Before:
>
> Running audioloopback.py script on Ringneck, 1kHz
> output sine wave is not stable and shows distortion.
>
> After:
>
> 10h stress tests audioloopback.py failed only one time.
> That is 0.00014% failure rate.

What is TSD? Why it is in the subject prefix?

Please use subject prefixes matching the subsystem. You can get them for
example with `git log --oneline -- DIRECTORY_OR_FILE` on the directory
your patch is touching.

Best regards,
Krzysztof