linux-kernel - Re: [PATCH 4/6] arm64: dts: qcom: sm4450: Add apps_rsc and cmd

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Date:   Fri, 8 Sep 2023 10:10:12 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Tengfei Fan <quic_tengfan@...cinc.com>, agross@...nel.org,
        andersson@...nel.org, konrad.dybcio@...aro.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        tglx@...utronix.de, maz@...nel.org, lee@...nel.org
Cc:     robimarko@...il.com, quic_gurus@...cinc.com,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, quic_tsoni@...cinc.com,
        quic_shashim@...cinc.com, quic_kaushalk@...cinc.com,
        quic_tdas@...cinc.com, quic_tingweiz@...cinc.com,
        quic_aiquny@...cinc.com, kernel@...cinc.com,
        quic_bjorande@...cinc.com, Ajit Pandey <quic_ajipan@...cinc.com>
Subject: Re: [PATCH 4/6] arm64: dts: qcom: sm4450: Add apps_rsc and cmd_db
 node

On 08/09/2023 08:58, Tengfei Fan wrote:
> From: Ajit Pandey <quic_ajipan@...cinc.com>
> 
> Add apps_rsc node and cmd_db memory region for sm4450.
> 
> Signed-off-by: Ajit Pandey <quic_ajipan@...cinc.com>
> Signed-off-by: Tengfei Fan <quic_tengfan@...cinc.com>
> ---
>  arch/arm64/boot/dts/qcom/sm4450.dtsi | 34 ++++++++++++++++++++++++++++
>  1 file changed, 34 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm4450.dtsi b/arch/arm64/boot/dts/qcom/sm4450.dtsi
> index c4e5b33f5169..eb544d875806 100644
> --- a/arch/arm64/boot/dts/qcom/sm4450.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm4450.dtsi
> @@ -5,6 +5,7 @@
>  
>  #include <dt-bindings/gpio/gpio.h>
>  #include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include <dt-bindings/soc/qcom,rpmh-rsc.h>
>  
>  / {
>  	interrupt-parent = <&intc>;
> @@ -328,6 +329,18 @@
>  		};
>  	};
>  
> +	reserved_memory: reserved-memory {
> +		#address-cells = <2>;
> +		#size-cells = <2>;
> +		ranges;
> +
> +		aop_cmd_db_mem: cmd-db@...60000 {
> +			compatible = "qcom,cmd-db";
> +			reg = <0x0 0x80860000 0x0 0x20000>;
> +			no-map;
> +		};
> +	};
> +
>  	soc: soc@0 {
>  		#address-cells = <2>;
>  		#size-cells = <2>;
> @@ -335,6 +348,27 @@
>  		dma-ranges = <0 0 0 0 0x10 0>;
>  		compatible = "simple-bus";
>  
> +		apps_rsc: rsc@...00000 {
> +			label = "apps_rsc";

It does not look like you tested the DTS against bindings. Please run
`make dtbs_check W=1` (see
Documentation/devicetree/bindings/writing-schema.rst or
https://www.linaro.org/blog/tips-and-tricks-for-validating-devicetree-sources-with-the-devicetree-schema/
for instructions).

> +			compatible = "qcom,rpmh-rsc";

compatible is always the first property. reg/reg-names/ranges follow.



Best regards,
Krzysztof