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Subject: Re: [PATCH 1/2] dma: add Qualcomm Technologies HIDMA management
 driver
To: Andy Shevchenko <andy.shevchenko@gmail.com>,
        Mark Rutland <mark.rutland@arm.com>
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From: Sinan Kaya <okaya@codeaurora.org>
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Date: Fri, 30 Oct 2015 14:48:06 -0400
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On 10/30/2015 2:40 PM, Andy Shevchenko wrote:
> On Fri, Oct 30, 2015 at 8:25 PM, Mark Rutland <mark.rutland@arm.com> wrote:
>
>>>> CSRT is an Intel specific ACPI table for slave devices.
>>>
>>> Wrong.
>>> It was designed by Microsoft to support multiple controllers, in
>>> particular DMACs.
>>> Have you read that document I posted link to?
>>>
Nope.

>>>> It was decided by
>>>> Linaro that CSRT will not be supported for ARM64.
>>>
>>> Interesting, ARM64 platforms are not going to have more than one DMAC
>>> per system?
>>
>> I cannot imagine that being true, and I don't see why Linaro would
>> decide such a thing.

See this.

https://wiki.linaro.org/LEG/Engineering/Kernel/ACPI/TablePriorities


>>
>> It does appear that it's not relevant to this device and driver, given
>> the lack of clients, unless I've misunderstood?
>
> Yeah, just a side note.
>
OK.

-- 
Sinan Kaya
Qualcomm Technologies, Inc. on behalf of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a 
Linux Foundation Collaborative Project