linux-kernel - Re: [RFC][PATCH 3/4] arm64: dts: hikey: Add hikey support for syscon-reboot-mode

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Message-ID: <20160810043424.GH26240@tuxbot>
Date:	Tue, 9 Aug 2016 21:34:24 -0700
From:	Bjorn Andersson <bjorn.andersson@...aro.org>
To:	John Stultz <john.stultz@...aro.org>
Cc:	lkml <linux-kernel@...r.kernel.org>,
	Andy Yan <andy.yan@...k-chips.com>,
	Haojian Zhuang <haojian.zhuang@...aro.org>,
	Guodong Xu <guodong.xu@...aro.org>,
	Wei Xu <xuwei5@...ilicon.com>,
	Rob Herring <robh+dt@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org
Subject: Re: [RFC][PATCH 3/4] arm64: dts: hikey: Add hikey support for
 syscon-reboot-mode

On Mon 08 Aug 16:03 PDT 2016, John Stultz wrote:

[..]
> diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
[..]
>  	memory@0 {
>  		device_type = "memory";
>  		reg = <0x00000000 0x00000000 0x00000000 0x05e00000>,
> -		      <0x00000000 0x05f00000 0x00000000 0x00eff000>,
> +		      <0x00000000 0x05f00000 0x00000000 0x00001000>,
> +		      <0x00000000 0x05f02000 0x00000000 0x00efd000>,
>  		      <0x00000000 0x06e00000 0x00000000 0x0060f000>,
>  		      <0x00000000 0x07410000 0x00000000 0x36bf0000>;
>  	};

As I said when talked about this, I don't think you should punch holes
in the /memory node, but rather add these regions as no-map in a
/reserved-memory node. But that's a unrelated matter.

>  
> +	reboot-mode-syscon@...1000 {
> +		compatible = "syscon", "simple-mfd";
> +		reg = <0x0 0x05f01000 0x0 0x00001000>;
> +
> +		reboot-mode@0 {

Drop the @0

Other than that:
Acked-by: Bjorn Andersson <bjorn.andersson@...aro.org>

> +			compatible = "syscon-reboot-mode";
> +			offset = <0x0>;
> +
> +			mode-normal	= <0x77665501>;
> +			mode-bootloader	= <0x77665500>;
> +			mode-recovery	= <0x77665502>;
> +		};
> +	};
> +
>  	soc {
>  		spi0: spi@...06000 {
>  			status = "ok";

Regards,
Bjorn