Re: [PATCH V1 1/3] ARM: clk-imx6sl: refine clock tree for SSI

From: Fabio Estevam
Date: Fri Sep 12 2014 - 12:43:46 EST


On Fri, Sep 12, 2014 at 1:35 PM, Fabio Estevam <festevam@xxxxxxxxx> wrote:
> On Tue, Sep 9, 2014 at 6:13 AM, Shengjiu Wang
> <shengjiu.wang@xxxxxxxxxxxxx> wrote:
>> Each SSI has "ssi", "ssi_ipg" clocks, and they share same gate bits.
>>
>> Signed-off-by: Shengjiu Wang <shengjiu.wang@xxxxxxxxxxxxx>
>
> This patch breaks audio playback on imx6q-sabresd:
>
> root@freescale /$ aplay /home/clarinet.wav
> Playing WAVE '/home/clarinet.wav' : Signed 16 bit Little Endian, Rate 44100 Hz,
> Mono
> underrun!!! (at least -1585992.581 ms long)
> underrun!!! (at least -1585992.585 ms long)
> underrun!!! (at least -1585992.586 ms long)
> underrun!!! (at least -1585992.586 ms long)
> underrun!!! (at least -1585992.586 ms long)
> underrun!!! (at least -1585992.586 ms long)
> underrun!!! (at least -1585992.586 ms long)
> underrun!!! (at least -1585992.586 ms long)
> underrun!!! (at least -1585992.586 ms long)
> underrun!!! (at least -1585992.586 ms long)
>
> If I revert this commit, then I am able to play it well again.

Ops, I replied in the wrong patch.

The one that breaks imx6q-sabresd is:

commit 48e1c2255 "ARM: clk-imx6q: refine clock tree for SSI"
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