From: Michael Opdenacker <michael.opdenacker@rootcommit.com>
Date: Thu, 20 Nov 2025 19:00:34 +0000 (+0000)
Subject: arm64: dts: rockchip: Enable i2c2 on Orange Pi 3B
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b92c4eae75468d5b7ad49fc0d1de76a7f0fa0bdb;p=thirdparty%2Fkernel%2Fstable.git

arm64: dts: rockchip: Enable i2c2 on Orange Pi 3B

Enable the "i2c2" bus on header pins 3 (I2C_SDA_M1)
and 5 (I2C2_SCL_M1) of the Orange Pi 3B board.

As documented on http://www.orangepi.org/img/pi3b/0719-pi3b-19.png,
such pins are the only ones offering I2C functionality
without conflicting with other SoC blocks.

Signed-off-by: Michael Opdenacker <michael.opdenacker@rootcommit.com>
Link: https://patch.msgid.link/20251120-orangepi3-enable-i2c2-v1-1-2e023a74012a@rootcommit.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---

diff --git a/arch/arm64/boot/dts/rockchip/rk3566-orangepi-3b.dtsi b/arch/arm64/boot/dts/rockchip/rk3566-orangepi-3b.dtsi
index d539570f531e..e2f0ccc6dbe7 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-orangepi-3b.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3566-orangepi-3b.dtsi
@@ -435,6 +435,11 @@
 	};
 };
 
+&i2c2 {
+	pinctrl-0 = <&i2c2m1_xfer>;
+	status = "okay";
+};
+
 &i2s0_8ch {
 	status = "okay";
 };