linux-kernel - Re: [PATCH 3/6] arm64: dts: ls1043a: update MSI and PCIe node

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Date:   Wed, 26 Oct 2016 11:33:55 +0100
From:   Mark Rutland <mark.rutland@....com>
To:     Minghuan Lian <Minghuan.Lian@....com>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, Marc Zyngier <marc.zyngier@....com>,
        Stuart Yoder <stuart.yoder@....com>,
        Yang-Leo Li <leoyang.li@....com>,
        Scott Wood <scott.wood@....com>,
        Shawn Guo <shawnguo@...nel.org>,
        Mingkai Hu <mingkai.hu@....com>
Subject: Re: [PATCH 3/6] arm64: dts: ls1043a: update MSI and PCIe node

On Tue, Oct 25, 2016 at 08:35:42PM +0800, Minghuan Lian wrote:
> 3. The rev1.1 of LS1043a moves PCIe INTB/C/D interrupts to MSI controller.

[...]

> diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi
> index 41e5dc1..5295bb9 100644

> -			interrupt-map = <0000 0 0 1 &gic 0 110 0x4>,
> -					<0000 0 0 2 &gic 0 111 0x4>,
> -					<0000 0 0 3 &gic 0 112 0x4>,
> -					<0000 0 0 4 &gic 0 113 0x4>;
> +			interrupt-map = <0000 0 0 1 &gic 0 110 0x4>;

[...]

> -			interrupt-map = <0000 0 0 1 &gic 0 120  0x4>,
> -					<0000 0 0 2 &gic 0 121 0x4>,
> -					<0000 0 0 3 &gic 0 122 0x4>,
> -					<0000 0 0 4 &gic 0 123 0x4>;
> +			interrupt-map = <0000 0 0 1 &gic 0 120  0x4>;
>  		};

[...]

> -			interrupt-map = <0000 0 0 1 &gic 0 154 0x4>,
> -					<0000 0 0 2 &gic 0 155 0x4>,
> -					<0000 0 0 3 &gic 0 156 0x4>,
> -					<0000 0 0 4 &gic 0 157 0x4>;
> +			interrupt-map = <0000 0 0 1 &gic 0 154 0x4>;

Per the description above, this breaks revisions prior to 1.1.

Please, split the rev 1.1 changes into a new DTS. Share the common parts
in a common dtsi.

Thanks,
Mark.