[PATCH 5.10 183/717] arm64: dts: qcom: msm8916-samsung-a2015: Disable muic i2c pin bias

Greg Kroah-Hartman
2020-12-28T14:09:59Z

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