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From: Aurelien Jarno <aurelien@aurel32.net>
To: linux-kernel@vger.kernel.org, Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	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>
Cc: Aurelien Jarno <aurelien@aurel32.net>,
	devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND
	FLATTENED DEVICE TREE BINDINGS),
	linux-riscv@lists.infradead.org (open list:RISC-V ARCHITECTURE),
	spacemit@lists.linux.dev (open list:RISC-V SPACEMIT SoC Support)
Subject: [PATCH 2/5] riscv: dts: spacemit: enable the i2c2 adapter on K3 Pico-ITX board
Date: Sat, 20 Jun 2026 08:22:03 +0200	[thread overview]
Message-ID: <20260620062238.3199108-3-aurelien@aurel32.net> (raw)
In-Reply-To: <20260620062238.3199108-1-aurelien@aurel32.net>

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@aurel32.net>
---
 arch/riscv/boot/dts/spacemit/k3-pico-itx.dts |  6 ++++++
 arch/riscv/boot/dts/spacemit/k3-pinctrl.dtsi | 11 +++++++++++
 2 files changed, 17 insertions(+)

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..2017aa14fb424 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 {
+		i2c2-0-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


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  parent reply	other threads:[~2026-06-20  6:23 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-20  6:22 [PATCH 0/5] riscv: dts: spacemit: serial/i2c/ethernet improvements for the K3 Pico-ITX board Aurelien Jarno
2026-06-20  6:22 ` [PATCH 1/5] riscv: dts: spacemit: set console baud rate on " Aurelien Jarno
2026-06-20  9:03   ` Guodong Xu
2026-06-20  6:22 ` Aurelien Jarno [this message]
     [not found]   ` <20260620062948.0A1161F000E9@smtp.kernel.org>
2026-06-21 13:14     ` [PATCH 2/5] riscv: dts: spacemit: enable the i2c2 adapter " Aurelien Jarno
2026-06-20  6:22 ` [PATCH 3/5] riscv: dts: spacemit: add 24c02 eeprom " Aurelien Jarno
2026-06-20  6:22 ` [PATCH 4/5] riscv: dts: spacemit: add i2c aliases " Aurelien Jarno
2026-06-20  6:22 ` [PATCH 5/5] riscv: dts: spacemit: improve RTL8211F PHY configuration " Aurelien Jarno

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