[PATCH v2 2/5] riscv: dts: spacemit: enable the i2c2 adapter on K3 Pico-ITX board
From: Aurelien Jarno
Date: Tue Jun 23 2026 - 16:45:25 EST
Define I2C2 pinctrl properties, and enable it on the K3 Pico-ITX board.
It will be used by the 24c02 eeprom.
Signed-off-by: Aurelien Jarno <aurelien@xxxxxxxxxxx>
---
arch/riscv/boot/dts/spacemit/k3-pico-itx.dts | 6 ++++++
arch/riscv/boot/dts/spacemit/k3-pinctrl.dtsi | 11 +++++++++++
2 files changed, 17 insertions(+)
v2:
- Rename pinctrl subnode from i2c2-0-pins to i2c2-1-pins
- Add a missing space after bias-pull-up
diff --git a/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts b/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts
index 509cebc0c9568..5fe9041ec5702 100644
--- a/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts
+++ b/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts
@@ -43,6 +43,12 @@ reg_aux_vcc5v: regulator-aux-vcc5v {
};
};
+&i2c2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c2_1_cfg>;
+ status = "okay";
+};
+
&i2c8 {
pinctrl-names = "default";
pinctrl-0 = <&i2c8_cfg>;
diff --git a/arch/riscv/boot/dts/spacemit/k3-pinctrl.dtsi b/arch/riscv/boot/dts/spacemit/k3-pinctrl.dtsi
index 3ee1471f37985..50dc124c097f9 100644
--- a/arch/riscv/boot/dts/spacemit/k3-pinctrl.dtsi
+++ b/arch/riscv/boot/dts/spacemit/k3-pinctrl.dtsi
@@ -78,6 +78,17 @@ gmac1-phy-0-pins {
};
};
+ /omit-if-no-ref/
+ i2c2_1_cfg: i2c2-1-cfg {
+ i2c2-1-pins {
+ pinmux = <K3_PADCONF(46, 5)>, /* i2c2 scl */
+ <K3_PADCONF(47, 5)>; /* i2c2 sda */
+
+ bias-pull-up = <0>;
+ drive-strength = <25>;
+ };
+ };
+
/omit-if-no-ref/
i2c8_cfg: i2c8-cfg {
i2c8-pins {
--
2.53.0