linux-kernel - Re: [PATCH v2 1/2] power: reset: at91: add sama5d3 reset function

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Message-ID: <55B72EEA.5020600@atmel.com>
Date:	Tue, 28 Jul 2015 09:27:38 +0200
From:	Nicolas Ferre <nicolas.ferre@...el.com>
To:	Sebastian Reichel <sre@...nel.org>
CC:	Josh Wu <josh.wu@...el.com>,
	<linux-arm-kernel@...ts.infradead.org>,
	Guenter Roeck <linux@...ck-us.net>,
	Kumar Gala <galak@...eaurora.org>,
	"Ian Campbell" <ijc+devicetree@...lion.org.uk>,
	Rob Herring <robh+dt@...nel.org>,
	Ben Dooks <ben.dooks@...ethink.co.uk>,
	Krzysztof Kozlowski <k.kozlowski.k@...il.com>,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	Pawel Moll <pawel.moll@....com>, <devicetree@...r.kernel.org>,
	<linux-pm@...r.kernel.org>, Sudeep Holla <sudeep.holla@....com>,
	Wei Yongjun <yongjun_wei@...ndmicro.com.cn>,
	"Fabian Frederick" <fabf@...net.be>,
	<linux-kernel@...r.kernel.org>,
	Boris Brezillon <boris.brezillon@...e-electrons.com>,
	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Mark Rutland <mark.rutland@....com>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>
Subject: Re: [PATCH v2 1/2] power: reset: at91: add sama5d3 reset function

Le 20/07/2015 18:42, Sebastian Reichel a écrit :
> Hi,
> 
> On Mon, Jul 20, 2015 at 05:32:05PM +0800, Josh Wu wrote:
>> This patch introduces a new compatible string: "atmel,sama5d3-rstc" and
>> new reset function for sama5d3 and later chips.
>>
>> As in sama5d3 or later chips, we don't have to shutdown the DDR
>> controller before reset. Shutdown the DDR controller before reset is a
>> workaround to avoid DDR signal driving the bus, but since sama5d3 and
>> later chips there is no such a conflict.
>>
>> So in this patch:
>>    1. the sama5d3 reset function only need to write the rstc register
>> and return.
>>    2. we can remove the code related with sama5d3 DDR controller as
>> we don't use it at all.
>>
>> Signed-off-by: Josh Wu <josh.wu@...el.com>
>> Acked-by: Nicolas Ferre <nicolas.ferre@...el.com>
> 
> queued.

Sebastian,

As my Device Tree changes depend on this modification, we can
synchronize in tree ways:

1/ you provide me a stable branch so that I can pull it before applying
my changes that can go through arm-soc.

2/ you let me take the driver's modifications with me and the two
patches of the series would go through arm-soc.

3/ you take the second patch of my series with my Acked-by tag and carry
both of them up to Linus' tree.

Please tell me your preference.

Thanks, bye,
-- 
Nicolas Ferre
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