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    Subject[PATCH 5.10 183/717] arm64: dts: qcom: msm8916-samsung-a2015: Disable muic i2c pin bias
    Date
    From: Nikita Travkin <nikitos.tr@gmail.com>

    [ Upstream commit 4e8692c2ee3d4ac6b669f7e306364d77a574c810 ]

    Some versions of the firmware leave i2c gpios in a wrong state.
    Add pinctrl that disables pin bias since external pull-up resistors
    are present.

    Reviewed-by: Stephan Gerhold <stephan@gerhold.net>
    Fixes: 1329c1ab0730 ("arm64: dts: qcom: Add device tree for Samsung Galaxy A3U/A5U")
    Signed-off-by: Nikita Travkin <nikitos.tr@gmail.com>
    Link: https://lore.kernel.org/r/20201113175917.189123-6-nikitos.tr@gmail.com
    Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    .../boot/dts/qcom/msm8916-samsung-a2015-common.dtsi | 11 +++++++++++
    1 file changed, 11 insertions(+)

    diff --git a/arch/arm64/boot/dts/qcom/msm8916-samsung-a2015-common.dtsi b/arch/arm64/boot/dts/qcom/msm8916-samsung-a2015-common.dtsi
    index b18d21e42f596..f7ac4c4033db6 100644
    --- a/arch/arm64/boot/dts/qcom/msm8916-samsung-a2015-common.dtsi
    +++ b/arch/arm64/boot/dts/qcom/msm8916-samsung-a2015-common.dtsi
    @@ -78,6 +78,9 @@
    sda-gpios = <&msmgpio 105 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
    scl-gpios = <&msmgpio 106 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;

    + pinctrl-names = "default";
    + pinctrl-0 = <&muic_i2c_default>;
    +
    #address-cells = <1>;
    #size-cells = <0>;

    @@ -314,6 +317,14 @@
    };
    };

    + muic_i2c_default: muic-i2c-default {
    + pins = "gpio105", "gpio106";
    + function = "gpio";
    +
    + drive-strength = <2>;
    + bias-disable;
    + };
    +
    muic_int_default: muic-int-default {
    pins = "gpio12";
    function = "gpio";
    --
    2.27.0


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