linux-kernel - Re: [PATCH 05/39] ARM: ux500: Stop passing MMC's platform data for Device Tree boots

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Date:	Tue, 11 Jun 2013 11:31:45 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Lee Jones <lee.jones@...aro.org>
Cc:	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Felipe Balbi <balbi@...com>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
	"linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	Vinod Koul <vinod.koul@...el.com>,
	Linus WALLEIJ <linus.walleij@...ricsson.com>,
	Arnd Bergmann <arnd@...db.de>,
	Srinidhi KASAGAR <srinidhi.kasagar@...ricsson.com>
Subject: Re: [PATCH 05/39] ARM: ux500: Stop passing MMC's platform data for
 Device Tree boots

On Mon, Jun 10, 2013 at 11:15 AM, Lee Jones <lee.jones@...aro.org> wrote:
> On Wed, 15 May 2013, Linus Walleij wrote:
>
>> On Wed, May 15, 2013 at 11:51 AM, Lee Jones <lee.jones@...aro.org> wrote:
>>
>> > It was required to pass DMA channel configuration information to the
>> > MMC driver before the new DMA API was in place. Now that it is, and
>> > is fully compatible with Device Tree we can stop doing that.
>> >
>> > Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
>> > Signed-off-by: Lee Jones <lee.jones@...aro.org>
>>
>> So since the use of dma_request_slave_channel() is not upstream,
>> I guess this will break DMA use (i.e slow down transfers!) on all
>> device tree boots?
>>
>> I'd be happy to apply it once the MMCI patch is in linux-next
>> indicating there may just be a window in the merge period
>> where it falls back to IRQ mode, but I don't want to disable
>> DMA on DT boots for an entire kernel cycle just like that.
>>
>> Not applied as of yet.
>
> I believe it's now okay to apply this.

Yep, I've rebased and applied it to the ux500-devicetree
branch.

I have some stuff on this branch which is queued up but may
miss v3.11, because I need the 5 outstanding pull requests
to land in ARM SoC so I get a merge base there before I
can send any more stuff.

It's mainly because this stuff isn't any orthogonal, everything
just conflicts in the AUXDATA all the time.

Yours,
Linus Walleij
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