linux-kernel - Re: [RFT PATCH v3 15/16] arm64: dts: qcom: sm8150: split TCSR halt regs out of mutex

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Message-ID: <99337b67-affa-a969-e2e3-f624c9ba0b31@somainline.org>
Date:   Fri, 26 Aug 2022 20:47:32 +0200
From:   Konrad Dybcio <konrad.dybcio@...ainline.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Lee Jones <lee@...nel.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
Subject: Re: [RFT PATCH v3 15/16] arm64: dts: qcom: sm8150: split TCSR halt
 regs out of mutex



On 19.08.2022 10:32, Krzysztof Kozlowski wrote:
> The TCSR halt regs are next to TCSR mutex (in one address block called
> TCSR_MUTEX), so before converting the TCSR mutex into device with
> address space, we need to split the halt regs to its own syscon device.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> 
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@...ainline.org>

Konrad
> 
> Changes since v2:
> 1. New patch
> ---
>  arch/arm64/boot/dts/qcom/sm8150.dtsi | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8150.dtsi b/arch/arm64/boot/dts/qcom/sm8150.dtsi
> index 7d509ecd44da..6df2e6828282 100644
> --- a/arch/arm64/boot/dts/qcom/sm8150.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8150.dtsi
> @@ -2056,7 +2056,12 @@ ipa_virt: interconnect@...0000 {
>  
>  		tcsr_mutex_regs: syscon@...0000 {
>  			compatible = "syscon";
> -			reg = <0x0 0x01f40000 0x0 0x40000>;
> +			reg = <0x0 0x01f40000 0x0 0x20000>;
> +		};
> +
> +		tcsr_regs_1: sycon@...0000 {
> +			compatible = "qcom,sm8150-tcsr", "syscon";
> +			reg = <0x0 0x01f60000 0x0 0x20000>;
>  		};
>  
>  		remoteproc_slpi: remoteproc@...0000 {