linux-kernel - Re: [PATCH 02/20] arm64: dts: Update cache properties for amlogic

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Date:   Mon, 31 Oct 2022 10:51:37 +0100
From:   Neil Armstrong <neil.armstrong@...aro.org>
To:     Pierre Gondois <pierre.gondois@....com>,
        linux-kernel@...r.kernel.org
Cc:     Rob.Herring@....com, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Kevin Hilman <khilman@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org
Subject: Re: [PATCH 02/20] arm64: dts: Update cache properties for amlogic

Hi,

On 31/10/2022 10:19, Pierre Gondois wrote:
> The DeviceTree Specification v0.3 specifies that the cache node
> 'compatible' and 'cache-level' properties are 'required'. Cf.
> s3.8 Multi-level and Shared Cache Nodes
> 
> The recently added init_of_cache_level() function checks
> these properties. Add them if missing.

Is this tied to a bindings change ? Since I'm only in CC to the 02/20 patch,
I don't have the context here.

Neil

> 
> Signed-off-by: Pierre Gondois <pierre.gondois@....com>
> ---
>   arch/arm64/boot/dts/amlogic/meson-a1.dtsi   | 1 +
>   arch/arm64/boot/dts/amlogic/meson-axg.dtsi  | 1 +
>   arch/arm64/boot/dts/amlogic/meson-g12a.dtsi | 1 +
>   arch/arm64/boot/dts/amlogic/meson-g12b.dtsi | 1 +
>   arch/arm64/boot/dts/amlogic/meson-gx.dtsi   | 1 +
>   arch/arm64/boot/dts/amlogic/meson-sm1.dtsi  | 1 +
>   6 files changed, 6 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
> index b4000cf65a9a..d2f7cb4e5375 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
> @@ -36,6 +36,7 @@ cpu1: cpu@1 {
>   
>   		l2: l2-cache0 {
>   			compatible = "cache";
> +			cache-level = <2>;
>   		};
>   	};
>   
> diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
> index 04f797b5a012..1648e67afbb6 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
> @@ -105,6 +105,7 @@ cpu3: cpu@3 {
>   
>   		l2: l2-cache0 {
>   			compatible = "cache";
> +			cache-level = <2>;
>   		};
>   	};
>   
> diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi
> index fb0ab27d1f64..af23d7968181 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi
> @@ -50,6 +50,7 @@ cpu3: cpu@3 {
>   
>   		l2: l2-cache0 {
>   			compatible = "cache";
> +			cache-level = <2>;
>   		};
>   	};
>   
> diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12b.dtsi
> index ee8fcae9f9f0..9978e619accc 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-g12b.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-g12b.dtsi
> @@ -105,6 +105,7 @@ cpu103: cpu@103 {
>   
>   		l2: l2-cache0 {
>   			compatible = "cache";
> +			cache-level = <2>;
>   		};
>   	};
>   };
> diff --git a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
> index 023a52005494..e3c12e0be99d 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
> @@ -132,6 +132,7 @@ cpu3: cpu@3 {
>   
>   		l2: l2-cache0 {
>   			compatible = "cache";
> +			cache-level = <2>;
>   		};
>   	};
>   
> diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi b/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi
> index 80737731af3f..d845eb19d93d 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi
> @@ -88,6 +88,7 @@ cpu3: cpu@3 {
>   
>   		l2: l2-cache0 {
>   			compatible = "cache";
> +			cache-level = <2>;
>   		};
>   	};
>