linux-kernel - [PATCH v1] arm64: dts: ti: k3-am62p-verdin: Enable pull-ups on I2C_3

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Message-ID: <20250529102601.452859-1-ghidoliemanuele@gmail.com>
Date: Thu, 29 May 2025 12:25:54 +0200
From: Emanuele Ghidoli <ghidoliemanuele@...il.com>
To: Nishanth Menon <nm@...com>,
	Vignesh Raghavendra <vigneshr@...com>,
	Tero Kristo <kristo@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: Emanuele Ghidoli <emanuele.ghidoli@...adex.com>,
	Francesco Dolcini <francesco.dolcini@...adex.com>,
	linux-arm-kernel@...ts.infradead.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v1] arm64: dts: ti: k3-am62p-verdin: Enable pull-ups on I2C_3_HDMI

From: Emanuele Ghidoli <emanuele.ghidoli@...adex.com>

Enable internal bias pull-ups on the SoC-side I2C_3_HDMI that do not have
external pull resistors populated on the SoM. This ensures proper
default line levels.

Fixes: 87f95ea316ac ("arm64: dts: ti: Add Toradex Verdin AM62P")
Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@...adex.com>
---
 arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi
index 226398c37fa9..d90d13287076 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi
@@ -717,8 +717,8 @@ AM62PX_MCU_IOPAD(0x0010, PIN_INPUT, 7) /* (D10) MCU_SPI0_D1.MCU_GPIO0_4 */ /* SO
 	/* Verdin I2C_3_HDMI */
 	pinctrl_mcu_i2c0: mcu-i2c0-default-pins {
 		pinctrl-single,pins = <
-			AM62PX_MCU_IOPAD(0x0044, PIN_INPUT, 0) /* (E11) MCU_I2C0_SCL */ /* SODIMM 59 */
-			AM62PX_MCU_IOPAD(0x0048, PIN_INPUT, 0) /* (D11) MCU_I2C0_SDA */ /* SODIMM 57 */
+			AM62PX_MCU_IOPAD(0x0044, PIN_INPUT_PULLUP, 0) /* (E11) MCU_I2C0_SCL */ /* SODIMM 59 */
+			AM62PX_MCU_IOPAD(0x0048, PIN_INPUT_PULLUP, 0) /* (D11) MCU_I2C0_SDA */ /* SODIMM 57 */
 		>;
 	};
 
-- 
2.43.0