Re: [alsa-devel] [PATCH 1/2] ASoC: samsung: Provide helper for DMA init

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Hi Mark,

On Mon, Dec 9, 2013 at 5:30 PM, Padma Venkat <padma.kvr@xxxxxxxxx> wrote:
> Hi Mark,
>
> On Fri, Dec 6, 2013 at 4:57 PM, Mark Brown <broonie@xxxxxxxxxx> wrote:
>> On Fri, Dec 06, 2013 at 10:44:33AM +0530, Padma Venkat wrote:
>>
>>> This is done in your earlier patch " ASoC: samsung: Ensure DMA data is
>>> initialised for secondary DAI ". Was it done on purpose or by mistake
>>> in this patch?
>>
>> It's intentional - notice that the function has changed, this is why I
>> kept asking you about mainline.  Mainline doesn't have the wrapper
>> function that abstracts the difference between s3c-dma and dmaengine,
>> this is why I'm saying these two will need to be rebased on top of the
>> mainline fix.
>
> Ok. I didn't notice the function name. Then this commit is not
> required in the mainline.
> This is required only after your changes because in dmaengine we are
> requesting the dma channel statically but in mainline(with samsung
> proprietary ops) we are requesting the dma channel at run time during
> playback or capture.

sorry for the mix-up. I think we need to set the dma data for the
secondary dai even in mainline.

>
>>
>>> I think you also told to include a patch for reinitialization of the
>>> dma_data in i2s_hw_params. If you are in the process of debugging some
>>> bug as you mentioned earlier you can ignore this comment. Otherwise it
>>> is just a reminder.
>>
>> Hrm, forgot to commit that bit.
>
> Thanks
> Padma
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