linux-kernel - Re: [PATCH 4/4] ARM: dts: uniphier: change support card to simple-mfd from simple-bus

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Message-ID: <20200623122413.GA954398@dell>
Date:   Tue, 23 Jun 2020 13:24:13 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc:     linux-arm-kernel@...ts.infradead.org,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/4] ARM: dts: uniphier: change support card to
 simple-mfd from simple-bus

On Tue, 23 Jun 2020, Masahiro Yamada wrote:

> 'make ARCH=arm dtbs_check' emits the following warning:
> 
>   support-card@1,1f00000: $nodename:0: 'support-card@1,1f00000' does not match '^(bus|soc|axi|ahb|apb)(@[0-9a-f]+)?$'
> 
> Maybe, simple-mfd could be a better fit for this device.

The two should be equivalent.

What do you mean by "maybe"?  Does this squash the warning?

Isn't the issue caused by the ','?

> Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
> ---
> 
>  arch/arm/boot/dts/uniphier-support-card.dtsi | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm/boot/dts/uniphier-support-card.dtsi b/arch/arm/boot/dts/uniphier-support-card.dtsi
> index 11e46e7de7c5..eedc10cbc6e6 100644
> --- a/arch/arm/boot/dts/uniphier-support-card.dtsi
> +++ b/arch/arm/boot/dts/uniphier-support-card.dtsi
> @@ -10,7 +10,7 @@ &system_bus {
>  	ranges = <1 0x00000000 0x42000000 0x02000000>;
>  
>  	support_card: support-card@1,1f00000 {
> -		compatible = "simple-bus";
> +		compatible = "simple-mfd";
>  		#address-cells = <1>;
>  		#size-cells = <1>;
>  		ranges = <0x00000000 1 0x01f00000 0x00100000>;

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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