linux-kernel - Re: [PATCH 1/2 v2] ARM: DRA7/335x/437x/OMAP4: hwmod: Remove elm address space from hwmod data

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Message-ID: <alpine.DEB.2.02.1510261700320.17863@utopia.booyaka.com>
Date:	Mon, 26 Oct 2015 17:06:45 +0000 (UTC)
From:	Paul Walmsley <paul@...an.com>
To:	"Franklin S Cooper Jr." <fcooper@...com>
cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-omap@...r.kernel.org, linux@....linux.org.uk,
	tony@...mide.com, rogerq@...com, nm@...com, lokeshvutla@...com
Subject: Re: [PATCH 1/2 v2] ARM: DRA7/335x/437x/OMAP4: hwmod: Remove elm
 address space from hwmod data

Hi Franklin,

On Mon, 26 Oct 2015, Franklin S Cooper Jr. wrote:

> On 10/23/2015 02:00 PM, Paul Walmsley wrote:
> > On Thu, 15 Oct 2015, Franklin S Cooper Jr wrote:
> >
> >> ELM address information is provided by device tree. No longer need
> >> to include this information within hwmod.
> >>
> >> Signed-off-by: Franklin S Cooper Jr <fcooper@...com>
> > The OMAP4 DTS files don't have the ELM address space declared.  I'm going 
> > to drop that portion of your patch.  Could you please send a two-patch 
> > series that first adds the ELM address space to the OMAP4 DTS file and 
> > then subsequently drops it from the OMAP4 hwmod data file?
> Hi Paul,
> 
> Sorry about that. I can create the patches but I don't see any board omap4
> board that has nand support. So I'm not going to be able to test to insure if
> omap_elm.c will work as is.
> 
> Should I just drop omap4 from this patchset or should I just add the elm node
> to omap4.dtsi and if people report an issue with omap_elm then we can fix it?

Please write the OMAP4 patches since we're trying to get the data cleaned 
up.  You don't need to worry about the DRA7/335x/437x platforms; those 
patches have already been merged.  The ELM hwmod should be initialized 
even on boards without NAND, so that should be a reasonable test of the 
register address space, at least.  Please note in the patch description 
whether your patches are untested, tested just to initialize/boot, or 
whether they've been tested on an active NAND flash workload.

thanks

- Paul
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