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";