linux-kernel - Re: [PATCH v3 20/23] arm64: dts: qcom: sdx75: Fix MPSS memory length

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Message-ID: <9a7f43fd-a720-481e-b8ca-68150c202b74@oss.qualcomm.com>
Date: Fri, 13 Dec 2024 15:56:57 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>, Vinod Koul <vkoul@...nel.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Abel Vesa
 <abel.vesa@...aro.org>,
        Sibi Sankar <quic_sibis@...cinc.com>,
        Luca Weiss <luca.weiss@...rphone.com>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH v3 20/23] arm64: dts: qcom: sdx75: Fix MPSS memory length

On 13.12.2024 3:54 PM, Krzysztof Kozlowski wrote:
> The address space in MPSS/Modem PAS (Peripheral Authentication Service)
> remoteproc node should point to the QDSP PUB address space
> (QDSP6...SS_PUB) which has a length of 0x10000.  Value of 0x4040 was
> copied from older DTS, but it grew since then.
> 
> This should have no functional impact on Linux users, because PAS loader
> does not use this address space at all.
> 
> Cc: stable@...r.kernel.org
> Fixes: 41c72f36b286 ("arm64: dts: qcom: sdx75: Add remoteproc node")
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> 
> ---
> 
> Changes in v3:
> New patch
> ---
>  arch/arm64/boot/dts/qcom/sdx75.dtsi | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sdx75.dtsi b/arch/arm64/boot/dts/qcom/sdx75.dtsi
> index 5f7e59ecf1ca6298cb252ee0654bc7eaeefbd303..a7cb6bacc4ad5551486d2ded930c1a256d27655e 100644
> --- a/arch/arm64/boot/dts/qcom/sdx75.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sdx75.dtsi
> @@ -893,7 +893,7 @@ tcsr: syscon@...0000 {
>  
>  		remoteproc_mpss: remoteproc@...0000 {
>  			compatible = "qcom,sdx75-mpss-pas";
> -			reg = <0 0x04080000 0 0x4040>;
> +			reg = <0 0x04080000 0 0x10000>;

I think this should be 0x04400000 instead

Konrad