linux-kernel - Re: [PATCH 4/4] arm64: dts: msm8996: Add SMP2P and APCS nodes

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Message-ID: <20161020200304.GP7509@tuxbot>
Date:   Thu, 20 Oct 2016 13:03:04 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Sarangdhar Joshi <spjoshi@...eaurora.org>
Cc:     Andy Gross <andy.gross@...aro.org>,
        David Brown <david.brown@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        linux-arm-msm@...r.kernel.org, linux-soc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Stephen Boyd <sboyd@...eaurora.org>,
        Trilok Soni <tsoni@...eaurora.org>
Subject: Re: [PATCH 4/4] arm64: dts: msm8996: Add SMP2P and APCS nodes

On Thu 20 Oct 11:56 PDT 2016, Sarangdhar Joshi wrote:

> Add SMP2P and APCS DT nodes required for Qualcomm ADSP
> Peripheral Image Loader.
> 

Nice, two (very) small nits below. But other than that

Acked-by: Bjorn Andersson <bjorn.andersson@...aro.org>

Regards,
Bjorn

> Signed-off-by: Sarangdhar Joshi <spjoshi@...eaurora.org>
> ---
>  arch/arm64/boot/dts/qcom/msm8996.dtsi | 30 ++++++++++++++++++++++++++++++
>  1 file changed, 30 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi
> index 0a810f5..3edb56b 100644
> --- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
> @@ -169,6 +169,31 @@
>  		method = "smc";
>  	};
>  
> +	smp2p-adsp {

Sorry for bikeshedding, but on msm8916 I named these {subsystem}-smp2p,
so I would prefer this was naemd adsp-smp2p...

> +		compatible = "qcom,smp2p";
> +		qcom,smem = <443>, <429>;
> +
> +		interrupt-parent = <&intc>;

I believe this node inherit intc as interrupt-parent from the root
already, is there are reason why you need to specify it.

> +		interrupts = <0 158 IRQ_TYPE_EDGE_RISING>;
> +
> +		qcom,ipc = <&apcs 16 10>;
> +
> +		qcom,local-pid = <0>;
> +		qcom,remote-pid = <2>;
> +
> +		adsp_smp2p_out: master-kernel {
> +			qcom,entry-name = "master-kernel";
> +			#qcom,state-cells = <1>;
> +		};
> +
> +		adsp_smp2p_in: slave-kernel {
> +			qcom,entry-name = "slave-kernel";
> +
> +			interrupt-controller;
> +			#interrupt-cells = <2>;
> +		};
> +	};
> +
>  	smem {
>  		compatible = "qcom,smem";
>  
> @@ -205,6 +230,11 @@
>  			interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
>  		};
>  
> +		apcs: syscon@...0000 {
> +			compatible = "syscon";
> +			reg = <0x9820000 0x1000>;
> +		};
> +
>  		gcc: clock-controller@...000 {
>  			compatible = "qcom,gcc-msm8996";
>  			#clock-cells = <1>;
> -- 
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
>