linux-kernel - Re: [PATCH 09/13] ARM: dts: qcom: add smem node for ipq8064

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Message-ID: <a56f2941-b386-19f3-a6ad-b5a0738c8458@somainline.org>
Date:   Wed, 6 Jul 2022 15:11:05 +0200
From:   Konrad Dybcio <konrad.dybcio@...ainline.org>
To:     Christian Marangi <ansuelsmth@...il.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Jonathan McDowell <noodles@...th.li>
Subject: Re: [PATCH 09/13] ARM: dts: qcom: add smem node for ipq8064



On 5.07.2022 15:39, Christian Marangi wrote:
> Add missing smem node for ipq8064.
> 
> Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
> Tested-by: Jonathan McDowell <noodles@...th.li>
> ---
I can't find a downstream kernel for these router SoCs, but
I wonder if the 8x64 family DTs couldn't be somewhat
unified? It looks like they share quite some code..

Konrad
>  arch/arm/boot/dts/qcom-ipq8064.dtsi | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/qcom-ipq8064.dtsi b/arch/arm/boot/dts/qcom-ipq8064.dtsi
> index b5aede3d7ccf..98527a7d885e 100644
> --- a/arch/arm/boot/dts/qcom-ipq8064.dtsi
> +++ b/arch/arm/boot/dts/qcom-ipq8064.dtsi
> @@ -908,6 +908,11 @@ lcc: clock-controller@...00000 {
>  			#reset-cells = <1>;
>  		};
>  
> +		sfpb_mutex_block: syscon@...0600 {
> +			compatible = "syscon";
> +			reg = <0x01200600 0x100>;
> +		};
> +
>  		pcie0: pci@...00000 {
>  			compatible = "qcom,pcie-ipq8064";
>  			reg = <0x1b500000 0x1000
> @@ -1332,4 +1337,17 @@ sdcc3: mmc@...80000 {
>  			};
>  		};
>  	};
> +
> +	sfpb_mutex: sfpb-mutex {
> +		compatible = "qcom,sfpb-mutex";
> +		syscon = <&sfpb_mutex_block 4 4>;
> +
> +		#hwlock-cells = <1>;
> +	};
> +
> +	smem {
> +		compatible = "qcom,smem";
> +		memory-region = <&smem>;
> +		hwlocks = <&sfpb_mutex 3>;
> +	};
>  };