linux-kernel - Re: [PATCH 7/7] arm64: dts: qcom: msm8976: Fix smsm ipc bit shifts

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Message-ID: <x2674ff4qgimlw4swothcvau73oqhphqrap6nmb6atpj2dnhya@ep6co23rj2ez>
Date:   Sun, 23 Jul 2023 18:28:38 +0200
From:   Marijn Suijten <marijn.suijten@...ainline.org>
To:     Adam Skladowski <a39.skl@...il.com>
Cc:     phone-devel@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht,
        Bjorn Andersson <andersson@...nel.org>,
        Andy Gross <agross@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 7/7] arm64: dts: qcom: msm8976: Fix smsm ipc bit shifts

On 2023-07-23 16:06:54, Adam Skladowski wrote:
> Update bits to match downstream irq-bitmask values.
> Fixes: 0484d3ce0902 ("arm64: dts: qcom: Add DTS for MSM8976 and MSM8956 SoCs")
> 

This whitespace should be the other way around.  And Fixes: patches
should typically be at the beginning of the series to show that they do
are independent of the rest of the series.

> Signed-off-by: Adam Skladowski <a39.skl@...il.com>
> ---
>  arch/arm64/boot/dts/qcom/msm8976.dtsi | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/msm8976.dtsi b/arch/arm64/boot/dts/qcom/msm8976.dtsi
> index 7385d5edec04..5537ec049451 100644
> --- a/arch/arm64/boot/dts/qcom/msm8976.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8976.dtsi
> @@ -433,9 +433,9 @@ smsm {
>  		#address-cells = <1>;
>  		#size-cells = <0>;
>  
> -		qcom,ipc-1 = <&apcs 8 12>;
> +		qcom,ipc-1 = <&apcs 8 13>;

This now overlaps with smp2p-modem which also has 13, but should be 14
according to my downstream 8956 sources:

    qcom,irq-bitmask = <0x4000>;

>  		qcom,ipc-2 = <&apcs 8 9>;
> -		qcom,ipc-3 = <&apcs 8 18>;
> +		qcom,ipc-3 = <&apcs 8 19>;

And for wcnss the smp2p-wcnss node in mainline currently has 17 but that
mask (0x20000) is used downstream for smd-wcnss; smp2p-wcnss downstream
has 0x40000 equalling a shift of 18.  Perhaps more apcs ipc references
need to be fixed before this is complete?

- Marijn

>  
>  		apps_smsm: apps@0 {
>  			reg = <0>;
> -- 
> 2.41.0
>