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    Subject[PATCH 2/2] arm64: dts: qcom: qrb4210-rb2: Enable bluetooth
    Enable the QCA bluetooth on RB2. It identifies like the following:

    Bluetooth: hci0: QCA Product ID :0x0000000a
    Bluetooth: hci0: QCA SOC Version :0x40020150
    Bluetooth: hci0: QCA ROM Version :0x00000201
    Bluetooth: hci0: QCA Patch Version:0x00000001
    Bluetooth: hci0: QCA controller version 0x01500201

    Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
    ---
    arch/arm64/boot/dts/qcom/qrb4210-rb2.dts | 81 +++++++++++++++++++++++++++++++-
    1 file changed, 80 insertions(+), 1 deletion(-)

    diff --git a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
    index 9738c0dacd58..bd751236f983 100644
    --- a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
    +++ b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
    @@ -15,6 +15,7 @@ / {

    aliases {
    serial0 = &uart4;
    + serial1 = &uart3;
    };

    chosen {
    @@ -352,7 +353,8 @@ vreg_l8a_0p664: l8 {

    vreg_l9a_1p8: l9 {
    regulator-min-microvolt = <1800000>;
    - regulator-max-microvolt = <2000000>;
    + regulator-max-microvolt = <1800000>;
    + regulator-allow-set-load;
    };

    vreg_l10a_1p8: l10 {
    @@ -389,11 +391,13 @@ vreg_l15a_3p128: l15 {
    vreg_l16a_1p3: l16 {
    regulator-min-microvolt = <1704000>;
    regulator-max-microvolt = <1904000>;
    + regulator-allow-set-load;
    };

    vreg_l17a_1p3: l17 {
    regulator-min-microvolt = <1152000>;
    regulator-max-microvolt = <1384000>;
    + regulator-allow-set-load;
    };

    vreg_l18a_1p232: l18 {
    @@ -426,6 +430,7 @@ vreg_l22a_2p96: l22 {
    vreg_l23a_3p3: l23 {
    regulator-min-microvolt = <3200000>;
    regulator-max-microvolt = <3400000>;
    + regulator-allow-set-load;
    };

    vreg_l24a_2p96: l24 {
    @@ -487,6 +492,60 @@ &tlmm {
    <56 3>, <61 2>, <64 1>,
    <68 1>, <72 8>, <96 1>;

    + uart3_default: uart3-default-state {
    + cts-pins {
    + pins = "gpio8";
    + function = "qup3";
    + bias-bus-hold;
    + };
    +
    + rts-pins {
    + pins = "gpio9";
    + function = "qup3";
    + drive-strength = <2>;
    + bias-disable;
    + };
    +
    + tx-pins {
    + pins = "gpio10";
    + function = "qup3";
    + drive-strength = <2>;
    + bias-disable;
    + };
    +
    + rx-pins {
    + pins = "gpio11";
    + function = "qup3";
    + bias-pull-up;
    + };
    + };
    +
    + uart3_sleep: uart3-sleep-state {
    + cts-pins {
    + pins = "gpio8";
    + function = "gpio";
    + bias-bus-hold;
    + };
    +
    + rts-pins {
    + pins = "gpio9";
    + function = "gpio";
    + bias-pull-down;
    + };
    +
    + tx-pins {
    + pins = "gpio10";
    + function = "gpio";
    + bias-pull-up;
    + };
    +
    + rx-pins {
    + pins = "gpio11";
    + function = "gpio";
    + bias-pull-up;
    + };
    + };
    +
    lt9611_rst_pin: lt9611-rst-state {
    pins = "gpio41";
    function = "gpio";
    @@ -508,6 +567,26 @@ sdc2_card_det_n: sd-card-det-n-state {
    };
    };

    +&uart3 {
    + interrupts-extended = <&intc GIC_SPI 330 IRQ_TYPE_LEVEL_HIGH>,
    + <&tlmm 11 IRQ_TYPE_LEVEL_HIGH>;
    + pinctrl-0 = <&uart3_default>;
    + pinctrl-1 = <&uart3_sleep>;
    + pinctrl-names = "default", "sleep";
    + status = "okay";
    +
    + bluetooth {
    + compatible = "qcom,wcn3988-bt";
    +
    + vddio-supply = <&vreg_l9a_1p8>;
    + vddxo-supply = <&vreg_l16a_1p3>;
    + vddrf-supply = <&vreg_l17a_1p3>;
    + vddch0-supply = <&vreg_l23a_3p3>;
    + enable-gpios = <&tlmm 87 GPIO_ACTIVE_HIGH>;
    + max-speed = <3200000>;
    + };
    +};
    +
    &uart4 {
    status = "okay";
    };
    --
    2.43.0

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