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Date: Fri, 06 Jun 2014 16:41:55 -0700
From: Mike Turquette <mturquette@...aro.org>
To: Tomasz Figa <tomasz.figa@...il.com>,
"Doug Anderson" <dianders@...omium.org>,
"Tomasz Figa" <t.figa@...sung.com>,
"Kukjin Kim" <kgene.kim@...sung.com>
Cc: olof@...om.net, javier.martinez@...labora.co.uk,
robh+dt@...nel.org, pawel.moll@....com, mark.rutland@....com,
ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
rahul.sharma@...sung.com, shaik.ameer@...sung.com,
arun.kk@...sung.com, alim.akhtar@...sung.com, a.hajda@...sung.com,
linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v3] clk: exynos5420: Remove aclk66_peric from the clock tree
description
Quoting Tomasz Figa (2014-06-05 15:26:31)
> On 05.06.2014 22:35, Doug Anderson wrote:
> > The "aclk66_peric" clock is a gate clock with a whole bunch of gates
> > underneath it. This big gate isn't very useful to include in our
> > clock tree. If any of the children need to be turned on then the big
> > gate will need to be on anyway. ...and there are plenty of other "big
> > gates" that aren't described in our clock tree, some of which shut off
> > collections of clocks that have no relationship in the hierarchy so
> > are hard to model.
> >
> > "aclk66_peric" is causing earlyprintk problems since it gets disabled
> > as part of the boot process, so let's just remove it.
> >
> > Strangely (and for no good reason) this clock is exported as part of
> > the common clock bindings. Remove it since there are no in-kernel
> > device trees using it and no reason anyone out of tree should refer to
> > it either.
> >
> > Signed-off-by: Doug Anderson <dianders@...omium.org>
> > ---
> > Changes in v3:
> > - Now just remove aclk66_peric from the tree as suggested by Tomasz.
> >
> > Changes in v2:
> > - Use GATE_A and clk_get(). Save the clock for putting later.
> > - Return 0 from exynos5420_clk_late_init().
> >
> > drivers/clk/samsung/clk-exynos5420.c | 85 ++++++++++++++++++++++------------
> > include/dt-bindings/clock/exynos5420.h | 1 -
> > 2 files changed, 55 insertions(+), 31 deletions(-)
> >
>
> Mike, I can take this patch to my tree as a fix for 3.16-rc, or if still
> possible and you don't mind, feel free to apply it directly with my ACK:
>
> Acked-by: Tomasz Figa <t.figa@...sung.com>
I'll send a second PR next week that includes this.
Regards,
Mike
>
> Best regards,
> Tomasz
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