Re: [PATCH 3/6] ACPI: add 2 parameters to function acpi dma controller register

[Andy Shevchenko]

On Thu, Jan 7, 2016 at 11:52 AM, Mika Westerberg
<mika.westerberg@xxxxxxxxxxxxxxx> wrote:
> On Wed, Jan 06, 2016 at 06:46:37AM +0000, Wang, Annie wrote:
>> Acpi_dma_xlate  mainly converts an  acpi_dma  structure into a dma_chan structure.
>> Without proper request line, wrong acpi_dma structure may be get.
>>
>> And as Andy says in http://article.gmane.org/gmane.linux.kernel.iommu/11675
>> How about add a hook into acpi_dma_controller_register?
>
> Hmm, you can pass custom data in acpi_dma_controller_register() which
> will be assigned to adma->data. If you put your request line
> information there, I think your custom acpi_dma_xlate() should be able
> to use that information to find proper channel, no?

I like Mika's idea, so, please, go this way if there is no impediment.

-- 
With Best Regards,
Andy Shevchenko
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