Messages in this thread | | | Date | Thu, 7 Jan 2016 12:08:50 +0200 | Subject | Re: [PATCH 3/6] ACPI: add 2 parameters to function acpi dma controller register | From | Andy Shevchenko <> |
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On Thu, Jan 7, 2016 at 11:52 AM, Mika Westerberg <mika.westerberg@linux.intel.com> 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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