linux-kernel - Re: [PATCH v2] ARM: EDMA: Fix clearing of unused list for DT DMA resources

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Message-ID: <51F74688.3090702@ti.com>
Date:	Tue, 30 Jul 2013 10:22:24 +0530
From:	Sekhar Nori <nsekhar@...com>
To:	<joelf@...com>
CC:	Tony Lindgren <tony@...mide.com>,
	Vinod Koul <vinod.koul@...el.com>,
	Benoit Cousson <benoit.cousson@...aro.org>,
	Balaji TK <balajitk@...com>, Arnd Bergmann <arnd@...db.de>,
	Jason Kridner <jkridner@...gleboard.org>,
	Mark Jackson <mpfj-list@...flow.co.uk>,
	Linux OMAP List <linux-omap@...r.kernel.org>,
	Linux ARM Kernel List <linux-arm-kernel@...ts.infradead.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux MMC List <linux-mmc@...r.kernel.org>,
	Pantel Antoniou <panto@...oniou-consulting.com>
Subject: Re: [PATCH v2] ARM: EDMA: Fix clearing of unused list for DT DMA
 resources

On Tuesday 30 July 2013 09:23 AM, Joel Fernandes wrote:
> On 07/29/2013 02:04 AM, Sekhar Nori wrote:
>> On Sunday 28 July 2013 05:02 AM, Joel Fernandes wrote:
>>> Hi Tony or Sekhar,
>>>
>>> If this patch looks ok, could you pick it up for -rc cycle?
>>>
>>> It fixes DMA breakages after the merge window for devices for which DMA
>>> resources are being populated in device tree instead pdev.
>>
>> But which DT-enabled platform in kernel is using EDMA? A grep for edma
>> over arch/arm/boot/dts/* brings up nothing.
>> Does this really have to go into the -rc cycle or can it wait till
>> v3.12?
> 
> 
> But unused channel list is also populated for private EDMA callers like
> davinci-pcm no? IIRC, HWMOD data is also removed for McASP so EDMA for
> those may break.

Yes, but which DT-enabled platform has davinci-pcm working today?
AFAICS, this bug affects DT-enabled platforms only.

Thanks,
Sekhar
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