linux-kernel - Re: [PATCH v8 6/7] clk: hi6220: Clock driver support for Hisilicon hi6220 SoC

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Message-ID: <20150529010733.4469.33722@quantum>
Date:	Thu, 28 May 2015 18:07:33 -0700
From:	Michael Turquette <mturquette@...aro.org>
To:	Kevin Hilman <khilman@...nel.org>,
	"Bintian" <bintian.wang@...wei.com>
Cc:	sboyd@...eaurora.org, zhangfei.gao@...aro.org,
	xuwei5@...ilicon.com, xuejiancheng@...wei.com,
	tomeu.vizoso@...labora.com, sledge.yanwei@...wei.com,
	linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
	arnd@...db.de, will.deacon@....com, robh+dt@...nel.org,
	mark.rutland@....com, catalin.marinas@....com,
	haojian.zhuang@...aro.org, linux-arm-kernel@...ts.infradead.org,
	olof@...om.net, yanhaifeng@...il.com, linux@....linux.org.uk,
	guodong.xu@...aro.org, jorge.ramirez-ortiz@...aro.org,
	tyler.baker@...aro.org, xuyiping@...ilicon.com,
	wangbinghui@...ilicon.com, zhenwei.wang@...ilicon.com,
	victor.lixin@...ilicon.com, puck.chen@...ilicon.com,
	dan.zhao@...ilicon.com, huxinwei@...wei.com,
	z.liuxinliang@...wei.com, heyunlei@...wei.com,
	kong.kongxinwei@...ilicon.com, wangbintian@...il.com,
	w.f@...wei.com, liguozhu@...ilicon.com
Subject: Re: [PATCH v8 6/7] clk: hi6220: Clock driver support for Hisilicon hi6220 SoC

Quoting Kevin Hilman (2015-05-28 10:32:05)
> Bintian <bintian.wang@...wei.com> writes:
> 
> > Hello Mike,
> >
> > On 2015/5/28 13:26, Michael Turquette wrote:
> >> Quoting Bintian Wang (2015-05-23 21:11:11)
> >>> Add clock drivers for hi6220 SoC, this driver controls the SoC
> >>> registers to supply different clocks to different IPs in the SoC.
> >>>
> >>> We add one divider clock for hi6220 because the divider in hi6220
> >>> also has a mask bit but it doesnot obey the rule defined by flag
> >>> "CLK_DIVIDER_HIWORD_MASK", we can not get index of the mask bit by
> >>> left shift fixed bits (e.g. 16 bits), so we add this divider clock
> >>> to handle it.
> >>>
> >>> Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@...aro.org>
> >>> Signed-off-by: Bintian Wang <bintian.wang@...wei.com>
> >>> Acked-by: Haojian Zhuang <haojian.zhuang@...aro.org>
> >>> Reviewed-by: Zhangfei Gao <zhangfei.gao@...aro.org>
> >>> Tested-by: Will Deacon <will.deacon@....com>
> >>> Tested-by: Tyler Baker <tyler.baker@...aro.org>
> >>
> >> Hi Bintian,
> >>
> >> Thanks for making the changes requested by Stephen. I've taken his patch
> >> to add assigned-clock-rate/parent support for AMBA interconnects and
> >> applied it to 4.1-rc1, and then I've applied your v8 patches #4-6 on top
> >> of that. You can find it at:
> >>
> >> git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git clk-next-hi6220
> > Thank you very much!
> >
> > I think you also need to pick patch "[PATCH v5 3/6] clk: hi6220:
> > Document devicetree bindings for hi6220 clock",  which described the
> > dt binding of clk, and it is also acked by Stephen(v4 is the same to
> > v5).
> >
> >> I have merged this into clk-next so it can get some cycles in
> >> linux-next.
> >>
> >> Stephen,
> >>
> >> Can you send your patch out to Russell properly? It needs his ack (or
> >> for him to take it outright) in order to unblock the hi6220 clock driver
> >> from being merged.
> > It doesn't block hi6220 clock driver now, because the UART1 is not
> > enabled in hi6220 dts now.
> 
> Now that the clk changes are queued up, can you (re)post the remaining
> hikey patches with a changelog stating the dependency on the clk-next
> branch.  I believe what's left is just the DT and Kconfig/defconfig
> changes, correct?

Just to be clear, clk-next-hi6220 is not an immutable branch. I just put
it up to get some testing done on it. Depending on whether or not
Russell acks Stephen's patch then it may be changed.

Regards,
Mike

> 
> With some acks from the DT maintainers, these should be ready to be
> merged through arm-soc.
> 
> Thanks,
> 
> Kevin
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