linux-kernel - Re: OMAP: clock DT conversion issues with omap36xx

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Message-ID: <1392065696.4898.163.camel@mars>
Date:	Mon, 10 Feb 2014 21:54:56 +0100
From:	Christoph Fritz <chf.fritz@...glemail.com>
To:	Tomi Valkeinen <tomi.valkeinen@...com>
Cc:	Tero Kristo <t-kristo@...com>,
	Ivaylo Dimitrov <ivo.g.dimitrov.75@...il.com>,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	linux-kernel@...r.kernel.org, pali.rohar@...il.com, pavel@....cz,
	Nishanth Menon <nm@...com>
Subject: Re: OMAP: clock DT conversion issues with omap36xx

On Fri, 2014-02-07 at 15:49 +0200, Tomi Valkeinen wrote:
> On 07/02/14 12:12, Christoph Fritz wrote:
> 
> > Yes, your patch fixes the issues for sys_clkout2. Thanks! If you want,
> > you can add my:
> > Tested-by: Christoph Fritz <chf.fritz@...glemail.com>
> > 
> > Below is my clock fix for dss:
> > 
> > From b90a62128068e1b6b0ba2a11c5cc0c8e587cf301 Mon Sep 17 00:00:00 2001
> > From: Christoph Fritz <chf.fritz@...glemail.com>
> > Date: Fri, 7 Feb 2014 10:51:15 +0100
> > Subject: [PATCH] ARM: dts: omap36xx: fix dpll4_m4_ck tree
> > 
> > OMAP36xx has different hardware implementation for the dpll4_m4_ck tree
> > compared to other OMAP3 variants. Reflect this properly in the dts file.
> 
> I rebased the DSS DT branch on top of v3.14-rc1, and I'm trying to get
> beagle-xM working. Pinmuxing was wrong, but after fixing that, the
> clk_set_rate for dss fclk failed. I applied Tero's and your patches, but
> now when starting omapdss I see:
> 
> [   19.704193] omap clock: module associated with clock
> dss1_alwon_fck_3430es2 didn't enable in 1000
> 00 tries
> 
> I wonder if I'm still missing some patch?

Is beagle-xM using DSI? Because here the LILLY-A83X board is not. The
clock registers are all fine now as before the dt clock conversion
patches.

I suppose you are using current linus tree. I tested 'next' but didn't
get DSS working. I guessed that it would have something to do with early
DSS DT integration issues.

I'll rebase my current dt board support patchset for LILLY-A83X to
current linus tree and investigate DSS further.

 Thanks
  -- Christoph

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