linux-kernel - RE: [PATCH 0/5] AM33xx: MMC resources from DT without HWMOD data

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Date:	Thu, 27 Jun 2013 18:08:55 +0000
From:	"Fernandes, Joel" <joelf@...com>
To:	"Krishnamoorthy, Balaji T" <balajitk@...com>,
	"Cousson, Benoit" <b-cousson@...com>
CC:	"lars@...afoo.de" <lars@...afoo.de>,
	Tony Lindgren <tony@...mide.com>,
	"Nori, Sekhar" <nsekhar@...com>, Matt Porter <matt@...orter.com>,
	"Grant Likely" <grant.likely@...retlab.ca>,
	Rob Herring <rob.herring@...xeda.com>,
	Vinod Koul <vinod.koul@...el.com>,
	Mark Brown <broonie@...aro.org>,
	"Russell King" <linux@....linux.org.uk>,
	Rob Landley <rob@...dley.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jason Kridner <jkridner@...gleboard.org>,
	"Koen Kooi" <koen@...gleboard.org>, Chris Ball <cjb@...top.org>,
	Devicetree Discuss <devicetree-discuss@...ts.ozlabs.org>,
	Linux OMAP List <linux-omap@...r.kernel.org>,
	Linux ARM Kernel List <linux-arm-kernel@...ts.infradead.org>,
	Linux DaVinci Kernel List 
	<davinci-linux-open-source@...ux.davincidsp.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux MMC List <linux-mmc@...r.kernel.org>,
	Arnd Bergmann <arnd@...db.de>,
	"lars@...afoo.de" <lars@...afoo.de>
Subject: RE: [PATCH 0/5] AM33xx: MMC resources from DT without HWMOD data

Hi Balaji,

> -----Original Message-----
> From: Krishnamoorthy, Balaji T
> Sent: Thursday, June 27, 2013 11:27 AM
> To: Cousson, Benoit; Fernandes, Joel
> Cc: lars@...afoo.de; Tony Lindgren; Nori, Sekhar; Matt Porter; Grant Likely;
> Rob Herring; Vinod Koul; Mark Brown; Russell King; Rob Landley; Andrew
> Morton; Jason Kridner; Koen Kooi; Chris Ball; Devicetree Discuss; Linux OMAP
> List; Linux ARM Kernel List; Linux DaVinci Kernel List; Linux Kernel Mailing List;
> Linux MMC List; Arnd Bergmann
> Subject: Re: [PATCH 0/5] AM33xx: MMC resources from DT without HWMOD
> data
> 
> On Thursday 27 June 2013 07:56 PM, Joel A Fernandes wrote:
> > Hi Benoit,
> >
> > On Thu, Jun 27, 2013 at 7:03 AM, Benoit Cousson <b-cousson@...com> wrote:
> >> Hi Joel,
> >>
> >> On 06/26/2013 05:28 AM, Joel A Fernandes wrote:
> >>> On Tue, Jun 25, 2013 at 8:23 PM, Joel A Fernandes <joelagnel@...com>
> wrote:
> >>>> From: Joel A Fernandes <agnel.joel@...il.com>
> >>>>
> >>>> This series is fixes to get MMC working on AM33XX without HWMOD
> data.
> >>>> On removal of HWMOD data, interrupt and register properties need to
> >>>> be provided for the driver to function correctly.
> >>>
> >>> Please don't pull patches authored by me in this series. I have
> >>> posted them with my wrong email address by mistake. I will correct
> >>> my email during the next repost, after a round of review. Matt's
> >>> patches in the series are still good though.
> >>
> >> In that case, please repost these in two series to avoid pulling the
> >> DTS files in the MMC tree.
> >
> > The series has been replaced with the single patch:
> > "[PATCH v2] ARM: dts: add AM33XX MMC support"
> > http://marc.info/?l=linux-omap&m=137230403815943&w=2
> >
> > Some patches were squashed and others dropped in the series resulting
> > in the single patch above. This patch should be good to apply
> Hi Joel,
> 
> Before pushing mmc dts support for am335x, Can you please let me
> know if below 2 patches [1] are merged/accepted,
> IIRC these patches are needed for MMC to work properly.
> 
> I suggest to hold the dts patch until slave_sg_limit gets merged
> otherwise it will cause regression in am335x mmc.
> 
> [PATCH v4 1/3] dmaengine: add dma_get_slave_sg_limits()
> [PATCH v4 2/3] dma: edma: add device_slave_sg_limits() support

Actually this is an independent regression and is currently worked on by Lars-Peter Clausen [1].

Currently not having the MMC DTS merged is also a regression, so I suggest lets take it one
step at a time and get the DTS merged in first. Also there will be overhead of reposting this
DTS patch later again which will not change. What do you say?

Thanks,

-Joel

[1] https://patchwork.kernel.org/patch/2228041/
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