linux-kernel - RE: [PATCHv4] clk: ppc-corenet: rename to ppc-qoriq and add CLK_OF

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Date:	Sun, 28 Sep 2014 02:18:38 +0000
From:	Yuantian Tang <Yuantian.Tang@...escale.com>
To:	Mike Turquette <mturquette@...aro.org>,
	Scott Wood <scottwood@...escale.com>
CC:	"linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Jingchang Lu <jingchang.lu@...escale.com>
Subject: RE: [PATCHv4] clk: ppc-corenet: rename to ppc-qoriq and add
 CLK_OF_DECLARE support

> -----Original Message-----
> From: Linuxppc-dev
> [mailto:linuxppc-dev-bounces+b29983=freescale.com@...ts.ozlabs.org] On
> Behalf Of Mike Turquette
> Sent: Saturday, September 27, 2014 7:29 AM
> To: Wood Scott-B07421
> Cc: linuxppc-dev@...ts.ozlabs.org; linux-kernel@...r.kernel.org;
> linux-arm-kernel@...ts.infradead.org; Lu Jingchang-B35083
> Subject: Re: [PATCHv4] clk: ppc-corenet: rename to ppc-qoriq and add
> CLK_OF_DECLARE support
> 
> Quoting Scott Wood (2014-09-25 15:56:20)
> > On Thu, 2014-09-25 at 15:54 -0700, Mike Turquette wrote:
> > > Quoting Scott Wood (2014-09-25 13:08:00)
> > > > Well, like I said, I'd rather see the CLK_OF_DECLARE stuff be made
> > > > to work on PPC rather than have the driver carry around two
> > > > binding methods.
> > >
> > > I guess that is an existing problem, and not related directly to
> > > this patch? This patch is essentially just renames (though the
> > > V1.0/V2.0 stuff seems weird).
> >
> > This patch is adding CLK_OF_DECLARE.
> 
> I'm fine taking this patch but your comments are still unresolved. What do you
> think needs to be done to fix the problems that you see?
> 
CLK_OF_DECLARE is totally worked on PPC. I will do it in a separate patch.
Regarding V1.0 and V2.0, it is not wired just same for now. But we are not sure if it is same for v3.0 in the future.

Besides updating drivers/cpufreq/Kconfig.powerpc, there is one more thing I am not comfortable with:
This patch uses " fixed-clock" as sysclk's compatible string, while on PPC we treated it as " fsl,qoriq-sysclk-[1-2].0".
That's inconsistent on both ARM and PPC platforms, neither did on bindings.

Thanks,
Yuantian

> Regards,
> Mike
> 
> >
> > -Scott
> >
> >
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