linux-kernel - Re: [PATCH 1/7] ARM: dts: s5pv210: Split memory nodes to match spec

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Message-ID: <51007577-52a2-60a5-0720-7b2c7f78ae3e@kernel.org>
Date:   Wed, 23 Mar 2022 11:54:19 +0100
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Jonathan Bakker <xc-racer2@...e.ca>, alim.akhtar@...sung.com
Cc:     robh+dt@...nel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/7] ARM: dts: s5pv210: Split memory nodes to match spec

On 22/03/2022 21:11, Jonathan Bakker wrote:
> Memory nodes should only have a singular reg property in them, so
> split the memory nodes such that there is only per node.
> 
> Signed-off-by: Jonathan Bakker <xc-racer2@...e.ca>
> ---
>  arch/arm/boot/dts/s5pv210-aquila.dts |  8 ++++++--
>  arch/arm/boot/dts/s5pv210-aries.dtsi | 14 +++++++++++---
>  arch/arm/boot/dts/s5pv210-goni.dts   | 14 +++++++++++---
>  3 files changed, 28 insertions(+), 8 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/s5pv210-aquila.dts b/arch/arm/boot/dts/s5pv210-aquila.dts
> index 6423348034b6..6984479ddba3 100644
> --- a/arch/arm/boot/dts/s5pv210-aquila.dts
> +++ b/arch/arm/boot/dts/s5pv210-aquila.dts
> @@ -29,8 +29,12 @@
>  
>  	memory@...00000 {
>  		device_type = "memory";
> -		reg = <0x30000000 0x05000000
> -			0x40000000 0x18000000>;
> +		reg = <0x30000000 0x05000000>;
> +	};
> +
> +	memory@...00000 {
> +		device_type = "memory";
> +		reg = <0x40000000 0x18000000>;
>  	};
>  
>  	pmic_ap_clk: clock-0 {
> diff --git a/arch/arm/boot/dts/s5pv210-aries.dtsi b/arch/arm/boot/dts/s5pv210-aries.dtsi
> index 160f8cd9a68d..70ff56daf4cb 100644
> --- a/arch/arm/boot/dts/s5pv210-aries.dtsi
> +++ b/arch/arm/boot/dts/s5pv210-aries.dtsi
> @@ -24,9 +24,17 @@
>  
>  	memory@...00000 {
>  		device_type = "memory";
> -		reg = <0x30000000 0x05000000
> -			0x40000000 0x10000000
> -			0x50000000 0x08000000>;

0x40000000 to 0x58000000 is continues, so I wonder why it is split? Look
at Aquila DTS.



Best regards,
Krzysztof