linux-kernel - Re: [PATCH 1/2] dma: add Qualcomm Technologies HIDMA management driver

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Date:	Sat, 31 Oct 2015 07:53:42 -0500
From:	Timur Tabi <timur@...eaurora.org>
To:	Sinan Kaya <okaya@...eaurora.org>, Arnd Bergmann <arnd@...db.de>
Cc:	dmaengine@...r.kernel.org, cov@...eaurora.org, jcm@...hat.com,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Vinod Koul <vinod.koul@...el.com>,
	Dan Williams <dan.j.williams@...el.com>,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] dma: add Qualcomm Technologies HIDMA management
 driver

Sinan Kaya wrote:
>
> I expect this driver to grow in functionality over time. Right now, it
> does the global init for the DMA. After that all channels execute on
> their own without depending on each other. Global init has to be done
> first before attempting to do any channel initialization.
>
> There is also implied startup ordering requirements. I was doing this by
> using channel driver with the late binding to guarantee that.
>
> As soon as I use module_platform_driver, the ordering gets reversed for
> some reason.


-- 
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the
Code Aurora Forum, hosted by The Linux Foundation.
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