linux-kernel - Re: [RFCv2 2/3] dts: zynq: Add devicetree entry for Xilinx Zynq reset controller.

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Message-ID: <CAAtXAHepDRbiiznHnT3dLLLWS_VH2a9BhnNgZzDECx__QceEeg@mail.gmail.com>
Date:	Mon, 27 Jul 2015 22:03:49 -0700
From:	Moritz Fischer <moritz.fischer@...us.com>
To:	Michal Simek <monstr@...str.eu>
Cc:	p.zabel@...gutronix.de, mark.rutland@....com,
	devicetree@...r.kernel.org, linux@....linux.org.uk,
	pawel.moll@....com, ijc+devicetree@...lion.org.uk,
	Michal Simek <michal.simek@...inx.com>,
	linux-kernel@...r.kernel.org, robh+dt@...nel.org,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	Kumar Gala <galak@...eaurora.org>,
	Sören Brinkmann <soren.brinkmann@...inx.com>,
	Nicolas Ferre <nicolas.ferre@...el.com>
Subject: Re: [RFCv2 2/3] dts: zynq: Add devicetree entry for Xilinx Zynq reset controller.

Hi Michal,

I agree we need to be careful with changing the bindings.

On Sun, Jul 26, 2015 at 11:56 PM, Michal Simek <monstr@...str.eu> wrote:
> Hi Moritz,
>
> On 07/25/2015 02:21 AM, Moritz Fischer wrote:
>> Signed-off-by: Moritz Fischer <moritz.fischer@...us.com>
>> ---
>>  arch/arm/boot/dts/zynq-7000.dtsi            | 43 ++++++++++++-
>
> This patch is nice in general but every change in binding should be
> discussed separately. There is also necessary to wire them up in the
> driver to do action. That's why I think that will be the best just to
> add the code to slcr and keep others untouched.

Ok, just to clarify: You'd suggest to just add the rstc as child node
to the slcr,
and leave the other nodes untouched?

>
> For example MACB/GEM is one example. Adding names to this node and
> extending driver to work properly with reset means that all others MACB
> users will be affected. Definitely this patch should be ACKed by Nicolas.
>
> Thanks,
> Michal
>
> --
> Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
> w: www.monstr.eu p: +42-0-721842854
> Maintainer of Linux kernel - Microblaze cpu - http://www.monstr.eu/fdt/
> Maintainer of Linux kernel - Xilinx Zynq ARM architecture
> Microblaze U-BOOT custodian and responsible for u-boot arm zynq platform
>
>
Cheers,

Moritz
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