linux-kernel - Re: [PATCH 4/9] dmaengine: pl330: add new items for pl330 private data

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Message-ID: <20151211092909.GW1854@localhost>
Date:	Fri, 11 Dec 2015 14:59:10 +0530
From:	Vinod Koul <vinod.koul@...el.com>
To:	"Wang, Annie" <Annie.Wang@....com>
Cc:	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	Joerg Roedel <joro@...tes.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-serial@...r.kernel.org" <linux-serial@...r.kernel.org>,
	"dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>,
	"iommu@...ts.linux-foundation.org" <iommu@...ts.linux-foundation.org>,
	Borislav Petkov <bp@...en8.de>,
	"Huang, Ray" <Ray.Huang@....com>,
	"Wan, Vincent" <Vincent.Wan@....com>, "Xue, Ken" <Ken.Xue@....com>,
	"Li, Tony" <Tony.Li@....com>
Subject: Re: [PATCH 4/9] dmaengine: pl330: add new items for pl330 private
 data

On Thu, Dec 10, 2015 at 06:38:09AM +0000, Wang, Annie wrote:
> >
> >Why not DT or ACPI for this?
> >
> We choose to use private data, as pl330 already has  struct dma_pl330_platdata. 
> Physically DMA share ACPI device with UART, however, BIOS believes DMA and UART is one device.
> We can't  get irq share info from ACPI. And we don't use DT. 
> 
That should be then a MFD device

-- 
~Vinod
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