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

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Message-ID: <51F74995.2050202@ti.com>
Date:	Tue, 30 Jul 2013 00:05:25 -0500
From:	Joel Fernandes <joelf@...com>
To:	Sekhar Nori <nsekhar@...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 07/29/2013 11:52 PM, Sekhar Nori wrote:> 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.

Yes, you're right. I didn't realize nothing else is working yet. I guess
its fine then for next kernel release.

Thanks,

-Joel
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