linux-kernel - Re: [PATCH 09/19] arm64: dts: qcom: sm8550: Fix MPSS memory length

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Message-ID: <e586147e-e107-4207-b105-46a26e33c56e@linaro.org>
Date: Fri, 6 Dec 2024 16:42:53 +0100
From: Neil Armstrong <neil.armstrong@...aro.org>
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>,
 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 09/19] arm64: dts: qcom: sm8550: Fix MPSS memory length

On 06/12/2024 16:32, 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.
> 
> Fixes: d0c061e366ed ("arm64: dts: qcom: sm8550: add adsp, cdsp & mdss nodes")
> Cc: <stable@...r.kernel.org>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> ---
>   arch/arm64/boot/dts/qcom/sm8550.dtsi | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qcom/sm8550.dtsi
> index 541b88eb5f5300ef9e20220305ff638db9b2e46b..71ff15695d396a68720a785435e692d3bbb38888 100644
> --- a/arch/arm64/boot/dts/qcom/sm8550.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi
> @@ -2314,7 +2314,7 @@ ipa: ipa@...0000 {
>   
>   		remoteproc_mpss: remoteproc@...0000 {
>   			compatible = "qcom,sm8550-mpss-pas";
> -			reg = <0x0 0x04080000 0x0 0x4040>;
> +			reg = <0x0 0x04080000 0x0 0x10000>;
>   
>   			interrupts-extended = <&intc GIC_SPI 264 IRQ_TYPE_EDGE_RISING>,
>   					      <&smp2p_modem_in 0 IRQ_TYPE_EDGE_RISING>,
> 

Reviewed-by: Neil Armstrong <neil.armstrong@...aro.org>