linux-kernel - Re: [PATCH] dw_dmac: adjust slave_id accordingly to request line base

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Message-ID: <CAOh2x==Ng1=iHOj-55mUTWCwpaJpRXjiQyfxz-a48ALDOW3aiA@mail.gmail.com>
Date:	Wed, 30 Jan 2013 13:31:04 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	Vinod Koul <vinod.koul@...el.com>,
	linux-kernel@...r.kernel.org, spear-devel <spear-devel@...t.st.com>
Subject: Re: [PATCH] dw_dmac: adjust slave_id accordingly to request line base

On Wed, Jan 30, 2013 at 1:02 PM, Andy Shevchenko
<andriy.shevchenko@...ux.intel.com> wrote:
> We get a device from the ACPI CSRT table. During enumeration we don't
> know what kind of the device it is. From the enumeration point of view
> each device enumerated from CSRT is a platform device (see
> drivers/acpi/csrt.c for the details).
>
> That's why we have to pass this info somehow to the DMAC driver. And
> like Mika already mentioned we have no other generic way except
> IORESOURCE_DMA. If you have something better in mind, please share. We
> could adopt our code then.

You don't need this in DT case too? Or only for ACPI case?

I think "Yes" is the answer of both the questions. If so, then you
can keep it this way or add another variable in platform data.
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