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Date:   Wed, 22 Nov 2023 21:45:02 +0300
From:   Dmitry Rokosov <ddrokosov@salutedevices.com>
To:     Viacheslav Bocharov <adeep@lexina.in>
CC:     Neil Armstrong <neil.armstrong@linaro.org>,
        Jerome Brunet <jbrunet@baylibre.com>,
        Kevin Hilman <khilman@baylibre.com>,
        Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
        <linux-amlogic@lists.infradead.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Rob Herring <robh+dt@kernel.org>
Subject: Re: [DMARC error][DKIM error] [PATCH 5/5] arm64: dts: meson: add dts
 links to secure-monitor for soc driver in a1, axg, gx, g12
Message-ID: <20231122184502.x4rxzvgmoaxbmhlr@CAB-WSD-L081021>
References: <20231122125643.1717160-1-adeep@lexina.in>
 <20231122125643.1717160-6-adeep@lexina.in>
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Hello Viacheslav,

On Wed, Nov 22, 2023 at 03:56:43PM +0300, Viacheslav Bocharov wrote:
> Add links to secure-monitor in soc driver section for A1, AXG, GX, G12
> Amlogic family.
> 
> Signed-off-by: Viacheslav Bocharov <adeep@lexina.in>
> ---
>  arch/arm64/boot/dts/amlogic/meson-a1.dtsi         | 1 +
>  arch/arm64/boot/dts/amlogic/meson-axg.dtsi        | 1 +
>  arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi | 1 +
>  arch/arm64/boot/dts/amlogic/meson-gx.dtsi         | 1 +
>  4 files changed, 4 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
> index 648e7f49424f..449b328d62b1 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
> @@ -407,6 +407,7 @@ hwrng: rng@5118 {
>  			sec_AO: ao-secure@5a20 {
>  				compatible = "amlogic,meson-gx-ao-secure", "syscon";
>  				reg = <0x0 0x5a20 0x0 0x140>;
> +				secure-monitor = <&sm>;

I suppose it's better and more consistent to use the same hierarchy
pattern as Secure PWRC uses: to be a child of Secure Monitor.

Please see the example below from meson-a1.dtsi:


	sm: secure-monitor {
		compatible = "amlogic,meson-gxbb-sm";

		pwrc: power-controller {
			compatible = "amlogic,meson-a1-pwrc";
			#power-domain-cells = <1>;
		};
	};

>  				amlogic,has-chip-id;
>  			};
>  
> diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
> index a49aa62e3f9f..6e80bdc525e5 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
> @@ -1660,6 +1660,7 @@ mux {
>  			sec_AO: ao-secure@140 {
>  				compatible = "amlogic,meson-gx-ao-secure", "syscon";
>  				reg = <0x0 0x140 0x0 0x140>;
> +				secure-monitor = <&sm>;
>  				amlogic,has-chip-id;
>  			};
>  
> diff --git a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
> index ff68b911b729..0a6b703b0dc0 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
> @@ -2026,6 +2026,7 @@ cec_AO: cec@100 {
>  			sec_AO: ao-secure@140 {
>  				compatible = "amlogic,meson-gx-ao-secure", "syscon";
>  				reg = <0x0 0x140 0x0 0x140>;
> +				secure-monitor = <&sm>;
>  				amlogic,has-chip-id;
>  			};
>  
> diff --git a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
> index 2673f0dbafe7..656e08b3d872 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
> @@ -471,6 +471,7 @@ cec_AO: cec@100 {
>  			sec_AO: ao-secure@140 {
>  				compatible = "amlogic,meson-gx-ao-secure", "syscon";
>  				reg = <0x0 0x140 0x0 0x140>;
> +				secure-monitor = <&sm>;
>  				amlogic,has-chip-id;
>  			};
>  
> -- 
> 2.34.1
> 
> 
> _______________________________________________
> linux-amlogic mailing list
> linux-amlogic@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-amlogic

-- 
Thank you,
Dmitry