linux-kernel - Re: [PATCH v3 2/5] arm64: dts: qcom: sm4450: Add apps_rsc and cmd

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Date:   Wed, 20 Sep 2023 12:14:56 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Tengfei Fan <quic_tengfan@...cinc.com>, agross@...nel.org,
        andersson@...nel.org, tglx@...utronix.de, maz@...nel.org,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org, catalin.marinas@....com, will@...nel.org
Cc:     geert+renesas@...der.be, arnd@...db.de, neil.armstrong@...aro.org,
        nfraprado@...labora.com, rafal@...ecki.pl, peng.fan@....com,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.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,
        quic_ajipan@...cinc.com, kernel@...cinc.com
Subject: Re: [PATCH v3 2/5] arm64: dts: qcom: sm4450: Add apps_rsc and cmd_db
 node



On 9/20/23 08:54, 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 | 35 ++++++++++++++++++++++++++++
>   1 file changed, 35 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm4450.dtsi b/arch/arm64/boot/dts/qcom/sm4450.dtsi
> index c4e5b33f5169..3d9d3b5e9510 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>;
> @@ -419,6 +432,28 @@
>   				status = "disabled";
>   			};
>   		};
> +
> +		apps_rsc: rsc@...00000 {
> +			compatible = "qcom,rpmh-rsc";
> +			reg = <0 0x17a00000 0 0x10000>,
> +			      <0 0x17a10000 0 0x10000>,
> +			      <0 0x17a20000 0 0x10000>;
0x0 for consistency

> +			reg-names = "drv-0", "drv-1", "drv-2";
> +			interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>;
> +			label = "apps_rsc";
> +			qcom,tcs-offset = <0xd00>;
> +			qcom,drv-id = <2>;
> +			qcom,tcs-config = <ACTIVE_TCS    2>, <SLEEP_TCS     3>,
> +					  <WAKE_TCS      3>, <CONTROL_TCS   0>;
You haven't addressed Bjorn's comment about the number of
CONTROL_TCSes, are you sure 0 is correct?

Konrad