Date:   Tue, 28 Mar 2023 15:24:02 -0700
From:   Luiz Augusto von Dentz <luiz.dentz@...il.com>
To:     Steev Klimaszewski <steev@...i.org>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Marcel Holtmann <marcel@...tmann.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        Sven Peter <sven@...npeter.dev>, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-bluetooth@...r.kernel.org,
        Mark Pearson <markpearson@...ovo.com>,
        Johan Hovold <johan@...nel.org>
Subject: Re: [PATCH v8 4/4] arm64: dts: qcom: sc8280xp-x13s: Add bluetooth

Hi Steev,

On Sun, Mar 26, 2023 at 4:38 PM Steev Klimaszewski <steev@...i.org> wrote:
>
> The Lenovo Thinkpad X13s has a WCN6855 Bluetooth controller on uart2,
> add this.
>
> Signed-off-by: Steev Klimaszewski <steev@...i.org>

I would like to merge this set but this one still doesn't have any
Signed-off-by other than yours.

> ---
> Changes since v7:
>  * Drop regulator now in a different patchset from Johan
>  * Fix alphabetization
>
> Changes since v6:
>  * Remove allowed-modes as they aren't needed
>  * Remove regulator-allow-set-load
>  * Set regulator-always-on because the wifi chip also uses the regulator
>  * cts pin uses bias-bus-hold
>  * Alphabetize uart2 pins
>
> Changes since v5:
>  * Update patch subject
>  * Specify initial mode (via guess) for vreg_s1c
>  * Drop uart17 definition
>  * Rename bt_en to bt_default because configuring more than one pin
>  * Correct (maybe) bias configurations
>  * Correct cts gpio
>  * Split rts-tx into two nodes
>  * Drop incorrect link in the commit message
>
> Changes since v4:
>  * Address Konrad's review comments.
>
> Changes since v3:
>  * Add vreg_s1c
>  * Add regulators and not dead code
>  * Fix commit message changelog
>
> Changes since v2:
>  * Remove dead code and add TODO comment
>  * Make dtbs_check happy with the pin definitions
>
>  .../qcom/sc8280xp-lenovo-thinkpad-x13s.dts    | 70 +++++++++++++++++++
>  1 file changed, 70 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
> index da79b5465a1b..129c5f9a2a61 100644
> --- a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
> +++ b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
> @@ -24,6 +24,7 @@ / {
>         aliases {
>                 i2c4 = &i2c4;
>                 i2c21 = &i2c21;
> +               serial1 = &uart2;
>         };
>
>         wcd938x: audio-codec {
> @@ -1102,6 +1103,32 @@ &txmacro {
>         status = "okay";
>  };
>
> +&uart2 {
> +       pinctrl-0 = <&uart2_default>;
> +       pinctrl-names = "default";
> +
> +       status = "okay";
> +
> +       bluetooth {
> +               compatible = "qcom,wcn6855-bt";
> +
> +               vddio-supply = <&vreg_s10b>;
> +               vddbtcxmx-supply = <&vreg_s12b>;
> +               vddrfacmn-supply = <&vreg_s12b>;
> +               vddrfa0p8-supply = <&vreg_s12b>;
> +               vddrfa1p2-supply = <&vreg_s11b>;
> +               vddrfa1p7-supply = <&vreg_s1c>;
> +
> +               max-speed = <3200000>;
> +
> +               enable-gpios = <&tlmm 133 GPIO_ACTIVE_HIGH>;
> +               swctrl-gpios = <&tlmm 132 GPIO_ACTIVE_HIGH>;
> +
> +               pinctrl-0 = <&bt_default>;
> +               pinctrl-names = "default";
> +       };
> +};
> +
>  &usb_0 {
>         status = "okay";
>  };
> @@ -1222,6 +1249,21 @@ hastings_reg_en: hastings-reg-en-state {
>  &tlmm {
>         gpio-reserved-ranges = <70 2>, <74 6>, <83 4>, <125 2>, <128 2>, <154 7>;
>
> +       bt_default: bt-default-state {
> +               hstp-bt-en-pins {
> +                       pins = "gpio133";
> +                       function = "gpio";
> +                       drive-strength = <16>;
> +                       bias-disable;
> +               };
> +
> +               hstp-sw-ctrl-pins {
> +                       pins = "gpio132";
> +                       function = "gpio";
> +                       bias-pull-down;
> +               };
> +       };
> +
>         edp_reg_en: edp-reg-en-state {
>                 pins = "gpio25";
>                 function = "gpio";
> @@ -1389,6 +1431,34 @@ reset-n-pins {
>                 };
>         };
>
> +       uart2_default: uart2-default-state {
> +               cts-pins {
> +                       pins = "gpio121";
> +                       function = "qup2";
> +                       bias-bus-hold;
> +               };
> +
> +               rts-pins {
> +                       pins = "gpio122";
> +                       function = "qup2";
> +                       drive-strength = <2>;
> +                       bias-disable;
> +               };
> +
> +               rx-pins {
> +                       pins = "gpio124";
> +                       function = "qup2";
> +                       bias-pull-up;
> +               };
> +
> +               tx-pins {
> +                       pins = "gpio123";
> +                       function = "qup2";
> +                       drive-strength = <2>;
> +                       bias-disable;
> +               };
> +       };
> +
>         usb0_sbu_default: usb0-sbu-state {
>                 oe-n-pins {
>                         pins = "gpio101";
> --
> 2.39.2
>


-- 
Luiz Augusto von Dentz

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