[PATCH v4 6/6] riscv: dts: spacemit: Add CTF2301 on K3 CoM260

From: Troy Mitchell <troy.mitchell@linux.dev>
To: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	 Conor Dooley <conor+dt@kernel.org>,
	Guenter Roeck <linux@roeck-us.net>,
	 Paul Walmsley <pjw@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	 Albert Ou <aou@eecs.berkeley.edu>,
	Alexandre Ghiti <alex@ghiti.fr>,  Yixun Lan <dlan@kernel.org>,
	Jonathan Corbet <corbet@lwn.net>,
	 Shuah Khan <skhan@linuxfoundation.org>,
	 Randy Dunlap <rdunlap@infradead.org>
Cc: Troy Mitchell <troy.mitchell@linux.dev>,
	devicetree@vger.kernel.org,  linux-kernel@vger.kernel.org,
	linux-hwmon@vger.kernel.org,  linux-riscv@lists.infradead.org,
	spacemit@lists.linux.dev,  linux-doc@vger.kernel.org
Subject: [PATCH v4 6/6] riscv: dts: spacemit: Add CTF2301 on K3 CoM260
Date: Mon, 31 Aug 2026 21:45:40 +0800	[thread overview]
Message-ID: <20260831-ctl2301-v4-6-b335d52a0570@linux.dev> (raw)
In-Reply-To: <20260831-ctl2301-v4-0-b335d52a0570@linux.dev>

Enable I2C6 on the K3 CoM260 module and describe the Sensylink
CTF2301 temperature sensor and fan controller at address 0x4c.

Override the I2C6 pin power source at board level because the IO rail
voltage is board-specific.

Signed-off-by: Troy Mitchell <troy.mitchell@linux.dev>
---
 arch/riscv/boot/dts/spacemit/k3-com260.dtsi | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k3-com260.dtsi b/arch/riscv/boot/dts/spacemit/k3-com260.dtsi
index 37627963a649..92dea8639779 100644
--- a/arch/riscv/boot/dts/spacemit/k3-com260.dtsi
+++ b/arch/riscv/boot/dts/spacemit/k3-com260.dtsi
@@ -58,6 +58,23 @@ serial-number {
 	};
 };
 
+&i2c6_1_cfg {
+	i2c6-1-pins {
+		power-source = <3300>;
+	};
+};
+
+&i2c6 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c6_1_cfg>;
+	status = "okay";
+
+	temperature-sensor@4c {
+		compatible = "sensylink,ctf2301";
+		reg = <0x4c>;
+	};
+};
+
 &i2c8 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c8_cfg>;

-- 
2.55.0


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