linux-kernel - Re: [PATCH 0/2] Add MT8173 MMPLL change rate support

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Message-ID: <1436507086.3526.117.camel@mtksdaap41>
Date:	Fri, 10 Jul 2015 13:44:46 +0800
From:	James Liao <jamesjj.liao@...iatek.com>
To:	Stephen Boyd <sboyd@...eaurora.org>
CC:	Matthias Brugger <matthias.bgg@...il.com>,
	Mike Turquette <mturquette@...libre.com>,
	Heiko Stubner <heiko@...ech.de>, <srv_heupstream@...iatek.com>,
	Daniel Kurtz <djkurtz@...omium.org>,
	"Ricky Liang" <jcliang@...omium.org>,
	Rob Herring <robh+dt@...nel.org>,
	"Sascha Hauer" <kernel@...gutronix.de>,
	<devicetree@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>,
	<linux-mediatek@...ts.infradead.org>
Subject: Re: [PATCH 0/2] Add MT8173 MMPLL change rate support

Hi Stephen,

On Wed, 2015-07-08 at 17:44 -0700, Stephen Boyd wrote:
> On 07/08/2015 01:37 AM, James Liao wrote:
> > MT8173 MMPLL frequency settings are different from common PLLs.
> > It needs different post divider settings for some ranges of frequency.
> > This patch add support for MT8173 MMPLL frequency setting, includes:
> >
> > 1. Add div-rate table for PLLs.
> > 2. Increase the max ost divider setting from 3 (/8) to 4 (/16).
> > 3. Write postdiv and pcw settings at the same time.
> >
> > James Liao (2):
> >   clk: mediatek: Fix PLL registers setting flow
> >   clk: mediatek: Add MT8173 MMPLL change rate support
> >
> 
> Are these fixing regressions in 4.2-rc1? I don't see any "Fixes:" tag so
> it's not clear and makes me want to defer these until v4.3. Furthermore,
> the subject starts with "Add" so it sounds like a new feature.

This patchset is based on 4.1-rc1 but it had been tested on 4.2-rc1.
I'll send a new patch which based on 4.2-rc1.

This patchset contains some general PLL fixes and MMPLL set rate
support. We can say the last one is also a fix because changing some
specific rate on MMPLL may fail in current implementation.


Best regards,

James

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