linux-kernel - Re: [PATCH V3 3/5] arm64: dts: qcom: ipq9574: Add RPM related nodes

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Date:   Thu, 6 Apr 2023 21:37:54 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Devi Priya <quic_devipriy@...cinc.com>, agross@...nel.org,
        andersson@...nel.org, lgirdwood@...il.com, broonie@...nel.org,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Cc:     quic_srichara@...cinc.com, quic_sjaganat@...cinc.com,
        quic_kathirav@...cinc.com, quic_arajkuma@...cinc.com,
        quic_anusha@...cinc.com, quic_ipkumar@...cinc.com
Subject: Re: [PATCH V3 3/5] arm64: dts: qcom: ipq9574: Add RPM related nodes



On 6.04.2023 09:00, Devi Priya wrote:
> Add RPM Glink & RPM message RAM nodes to support frequency scaling
> on IPQ9574.
> 
> Co-developed-by: Praveenkumar I <quic_ipkumar@...cinc.com>
> Signed-off-by: Praveenkumar I <quic_ipkumar@...cinc.com>
> Signed-off-by: Devi Priya <quic_devipriy@...cinc.com>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>

Konrad
>  Changes in V3:
> 	- Moved rpm_msg_ram node under /soc and updated the node name to sram@
> 	- Moved rpm-glink node such that the nodes are sorted alphabetically
> 
>  arch/arm64/boot/dts/qcom/ipq9574.dtsi | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/ipq9574.dtsi b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
> index 7c820463a79d..1f9b7529e7ed 100644
> --- a/arch/arm64/boot/dts/qcom/ipq9574.dtsi
> +++ b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
> @@ -110,12 +110,29 @@
>  		};
>  	};
>  
> +	rpm-glink {
> +		compatible = "qcom,glink-rpm";
> +		interrupts = <GIC_SPI 168 IRQ_TYPE_EDGE_RISING>;
> +		qcom,rpm-msg-ram = <&rpm_msg_ram>;
> +		mboxes = <&apcs_glb 0>;
> +
> +		rpm_requests: rpm-requests {
> +			compatible = "qcom,rpm-ipq9574";
> +			qcom,glink-channels = "rpm_requests";
> +		};
> +	};
> +
>  	soc: soc@0 {
>  		compatible = "simple-bus";
>  		#address-cells = <1>;
>  		#size-cells = <1>;
>  		ranges = <0 0 0 0xffffffff>;
>  
> +		rpm_msg_ram: sram@...00 {
> +			compatible = "qcom,rpm-msg-ram";
> +			reg = <0x00060000 0x6000>;
> +		};
> +
>  		pcie0_phy: phy@...00 {
>  			compatible = "qcom,ipq9574-qmp-gen3x1-pcie-phy";
>  			reg = <0x00084000 0x1000>;