linux-hardening - Re: [PATCH 4/4] arm64: dts: qcom: sm6115p-j606f: Enable ATH10K WiFi

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Message-ID: <CAA8EJprmzibdarZCKDtAa14HTShxTwQ6FQfi665hbVR_=5MLaQ@mail.gmail.com>
Date:   Thu, 6 Apr 2023 21:56:21 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Kees Cook <keescook@...omium.org>,
        Tony Luck <tony.luck@...el.com>,
        "Guilherme G. Piccoli" <gpiccoli@...lia.com>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH 4/4] arm64: dts: qcom: sm6115p-j606f: Enable ATH10K WiFi

On Thu, 6 Apr 2023 at 21:32, Konrad Dybcio <konrad.dybcio@...aro.org> wrote:
>
>
>
> On 6.04.2023 19:51, Dmitry Baryshkov wrote:
> > On 06/04/2023 18:25, Konrad Dybcio wrote:
> >> Enable the onboard QCA Wi-Fi. HW identifiers for reference:
> >> qmi chip_id 0x320 chip_family 0x4001 board_id 0xff soc_id 0x400e0000
> >>
> >> Firmware sources:
> >> /vendor/firmware_mnt/image/wlanmdsp.bin -> qcom/.../wlanmdsp.mbn
> >> /vendor/firmware_mnt/image/bdwlan.bXX [1] -> [2] -> ath10k/.../board-2.bin
> >> [3] -> ath10k/.../firmware-5.bin
> >>
> >> Not sure where 3 comes from on the device itself, gotta investigate that..
> >>
> >> According to [4], it's called WCN3990_STRAIT.
> >>
> >> [1] XX = board_id printed when the file is missing or by your downstream
> >> kernel firmware loader in the dmesg; if XX=ff, use bdwlan.bin
> >
> > Since the board_id is 0xff, please add qcom,ath10k-calibration-variant
> Do I make up a name, or is there some convention?
>
> I see Johan used "LE_X13S" in commit 2702f54f400ad3979632cdb76553772414f4c5e3.
> Should I go with "LE_P11"?

I think Lenovo_P11 or LENOVO_P11 might be better.

>
> >
> > Ideally, could you please send the bdwlan to ath10k for inclusion, see https://wireless.wiki.kernel.org/en/users/drivers/ath10k/boardfiles .
> The legal situation is ambiguous at best :/

As usual :-(

>
> Konrad
> >
> >>
> >> [2] https://github.com/jhugo/linux/blob/5.5rc2_wifi/README
> >> [3] https://github.com/kvalo/ath10k-firmware/blob/master/WCN3990/hw1.0/HL3.1/WLAN.HL.3.1-01040-QCAHLSWMTPLZ-1/firmware-5.bin
> >> [4] https://git.codelinaro.org/clo/la/platform/vendor/qcom-opensource/wlan/qca-wifi-host-cmn/-/blob/LA.VENDOR.1.0.r1-20700-WAIPIO.QSSI13.0/hif/src/hif_hw_version.h#L55
> >>
> >> Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> >> ---
> >>   arch/arm64/boot/dts/qcom/sm6115p-lenovo-j606f.dts | 8 ++++++++
> >>   1 file changed, 8 insertions(+)
> >>
> >> diff --git a/arch/arm64/boot/dts/qcom/sm6115p-lenovo-j606f.dts b/arch/arm64/boot/dts/qcom/sm6115p-lenovo-j606f.dts
> >> index 2aac25171dec..4ba8e59a27d8 100644
> >> --- a/arch/arm64/boot/dts/qcom/sm6115p-lenovo-j606f.dts
> >> +++ b/arch/arm64/boot/dts/qcom/sm6115p-lenovo-j606f.dts
> >> @@ -315,6 +315,14 @@ &usb_hsphy {
> >>       status = "okay";
> >>   };
> >>   +&wifi {
> >> +    vdd-0.8-cx-mx-supply = <&pm6125_l8>;
> >> +    vdd-1.8-xo-supply = <&pm6125_l16>;
> >> +    vdd-1.3-rfa-supply = <&pm6125_l17>;
> >> +    vdd-3.3-ch0-supply = <&pm6125_l23>;
> >> +    status = "okay";
> >> +};
> >> +
> >>   &xo_board {
> >>       clock-frequency = <19200000>;
> >>   };
> >>
> >



-- 
With best wishes
Dmitry