linux-kernel - Re: [PATCH v4 0/4] clk: hisilicon: support stub clock

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Message-ID: <55CB0FCD.7050303@hisilicon.com>
Date:	Wed, 12 Aug 2015 10:20:13 +0100
From:	Wei Xu <xuwei5@...ilicon.com>
To:	Leo Yan <leo.yan@...aro.org>, Stephen Boyd <sboyd@...eaurora.org>
CC:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	"Mark Rutland" <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	"Catalin Marinas" <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	"Michael Turquette" <mturquette@...libre.com>,
	Haojian Zhuang <haojian.zhuang@...aro.org>,
	Bintian Wang <bintian.wang@...wei.com>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-clk@...r.kernel.org>, "Guodong Xu" <guodong.xu@...aro.org>,
	Jian Zhang <zhangjian001@...ilicon.com>,
	"Zhenwei Wang" <Zhenwei.wang@...ilicon.com>,
	Haoju Mo <mohaoju@...ilicon.com>,
	Dan Zhao <dan.zhao@...ilicon.com>,
	<sunzhaosheng@...ilicon.com>, <victor.lixin@...ilicon.com>
Subject: Re: [PATCH v4 0/4] clk: hisilicon: support stub clock



On 8/12/2015 2:49 AM, Leo Yan wrote:
> Hi Stephen,
> 
> On Tue, Aug 11, 2015 at 05:38:17PM -0700, Stephen Boyd wrote:
>> On 08/04, Leo Yan wrote:
>>> This series adds support for hisilicon stub clock driver. On hi6220,
>>> the bootloader needs load the firmware image and set info for OPPs;
>>> after run into kernel, the stub clock driver is used to communicate
>>> w/t firmware for cpu dynamic frequency scaling.
>>>
>>> In patch series v1/v2, the stub clock driver simply writes request in
>>> sram and send ipc to firmware; For patch series v3, the firmware has
>>> been upgraded to use mailbox, so stub clock driver will call standard
>>> mailbox APIs to request mailbox channel and send message to firmware.
>>>
>>> Patch 4 adds stub clock node into dts and it references mailbox with
>>> phandle, so patch 4 will depend on mailbox driver's patch series [1].
>>> These patches have been tested on 96board hikey and is used by cpufreq
>>> driver.
>>
>> The To: list is everyone, so I'm not sure who is supposed to
>> apply these patches. I'd like to take patches 1, 2, and 3 through
>> the clk tree though.
> 
> Thanks, you could take first three patches. For patch 4, i will
> re-send it after mailbox driver's patches have been merged.

Hi Leo,

> Wei Xu, is this okay for you?

OK :)

Best Regards,
Wei

> 
> Thanks,
> Leo Yan
> 
> .
> 

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