[PATCH 3/4] arm64: dts: allwinner: sun55i-a523: add I2C0 and I2C1 pin groups
From: Mikhail Kalashnikov
Date: Fri Sep 18 2026 - 12:57:02 EST
Add the pin groups for the I2C0 (PH0/PH1) and I2C1 (PH2/PH3) controllers
that used on some A523 boards.
Assisted-by: OpenCode:DeepSeek-V4.1-Flash
Signed-off-by: Mikhail Kalashnikov <iuncuim@xxxxxxxxx>
---
arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
index 85ef492ff..0ec5d19f7 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
@@ -147,6 +147,24 @@ pio: pinctrl@2000000 {
interrupt-controller;
#interrupt-cells = <3>;
+ /omit-if-no-ref/
+ i2c0_pins: i2c0-pins {
+ pins = "PH0", "PH1";
+ function = "i2c0";
+ allwinner,pinmux = <2>;
+ drive-strength = <10>;
+ bias-pull-up;
+ };
+
+ /omit-if-no-ref/
+ i2c1_pins: i2c1-pins {
+ pins = "PH2", "PH3";
+ function = "i2c1";
+ allwinner,pinmux = <2>;
+ drive-strength = <10>;
+ bias-pull-up;
+ };
+
/omit-if-no-ref/
i2s2_pi_pins: i2s2-pi-pins {
pins = "PI2", "PI3", "PI4", "PI5";
--
2.55.0