linux-kernel - Re: [PATCH] arm: dts: sun8i: split Allwinner H3 .dtsi

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Date:   Thu, 2 Mar 2017 14:58:12 +0100
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     Icenowy Zheng <icenowy@...c.xyz>
Cc:     Chen-Yu Tsai <wens@...e.org>, Rob Herring <robh+dt@...nel.org>,
        Andre Przywara <andre.przywara@....com>,
        linux-clk@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-sunxi@...glegroups.com
Subject: Re: [PATCH] arm: dts: sun8i: split Allwinner H3 .dtsi

On Thu, Mar 02, 2017 at 04:13:40AM +0800, Icenowy Zheng wrote:
> From: Andre Przywara <andre.przywara@....com>
> 
> The new Allwinner H5 SoC is pin-compatible to the H3 SoC, but with the
> Cortex-A7 cores replaced by Cortex-A53 cores and the MMC controller
> updated. So we should really share almost the whole .dtsi.
> In preparation for that move the peripheral parts of the existing
> sun8i-h3.dtsi into a new sunxi-h3-h5.dtsi.
> The actual sun8i-h3.dtsi then includes that and defines the H3 specific
> parts on top of it.
> According to "Allwinner H3 Datasheet Version 1.2 Apr. 23, 2015" [1]
> Chapter 4.12. GIC and "Allwinner H5 Datasheet Revision 1.0 May. 20,
> 2016" [2] Chapter 4.12. GIC, the two SoCs both use ARM GIC-400 interrupt
> controller (see the "Note" after the interrupt source table), so the GIC
> node is extracted to sunxi-h3-h5.dtsi as well, and the compatible is
> changed to "arm,gic-400".

This should be in a separate patch.

> On the way get rid of skeleton.dtsi, as recommended in that very file.

That too.

> The inclusion of pinctrl-a10.h is also dropped, as it's now not needed
> at all after changing pinctrl binding to the generic pinconf binding.

And that as well...

> [1] http://linux-sunxi.org/File:Allwinner_H3_Datasheet_V1.2.pdf
> [2] https://github.com/OrangePiLibra/OrangePi_H5SDK/blob/master/Documentation/Hardware/H5_User_Manual.pdf

Please don't put URLs in commit logs.

Thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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