linux-kernel - Re: [PATCHv5 09/10] DTS: ARM: OMAP3-N900: Add SSI support

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Message-ID: <20140521210956.GA14520@atomide.com>
Date:	Wed, 21 May 2014 14:09:56 -0700
From:	Tony Lindgren <tony@...mide.com>
To:	Sebastian Reichel <sre@...nel.org>
Cc:	Linus Walleij <linus.walleij@...aro.org>,
	Shubhrajyoti Datta <omaplinuxkernel@...il.com>,
	Carlos Chinea <cch.devel@...il.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Kumar Gala <galak@...eaurora.org>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org,
	Pali Rohár <pali.rohar@...il.com>,
	Ивайло Димитров 
	<freemangordon@....bg>,
	Joni Lapilainen <joni.lapilainen@...il.com>,
	Aaro Koskinen <aaro.koskinen@....fi>,
	Pavel Machek <pavel@....cz>
Subject: Re: [PATCHv5 09/10] DTS: ARM: OMAP3-N900: Add SSI support

* Sebastian Reichel <sre@...nel.org> [140521 13:10]:
> Hi,
> 
> On Wed, May 21, 2014 at 11:43:19AM -0700, Tony Lindgren wrote:
> > > > Just noticed that this patch seems to somehow break idle
> > > > modes on n900, so dropping both dts changes for now.
> > > > 
> > > > Basically the n900 debug LEDs won't ever go off with
> > > > these two dts patches enabled, even without the modem
> > > > drivers loaded. I did not dig deeper, but it's probably
> > > > something related to hwmod using this data for some
> > > > settings.
> > > 
> > > Is hwmod data interpreted at all without the DT entries?
> > 
> > Yes for autoidling unused devices. We parse that with
> > omap_device_build_from_dt().
> 
> That function seems to parse DT stuff. What I meant was
> not without the *driver*, but without the *DT entry*.
> 
> I think the hwmod entries are completly ignored until there
> is a DT device?

Yes for device tree based booting. They get initialized
based on the ti,hwmods property. Posted a suggested fix,
you've probably seen it by now :)

Tony
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