linux-kernel - [PATCH 8/8] ARM: dts: imx7ulp: remove bias-pull-up

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Message-Id: <20251014-imx6_dts_clean_2-v1-8-508b36e5a3fd@nxp.com>
Date: Tue, 14 Oct 2025 15:38:25 -0400
From: Frank Li <Frank.Li@....com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, 
 Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, 
 Christoph Niedermaier <cniedermaier@...electronics.com>, 
 Marek Vasut <marex@...x.de>
Cc: devicetree@...r.kernel.org, imx@...ts.linux.dev, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 kernel@...electronics.com, Frank Li <Frank.Li@....com>
Subject: [PATCH 8/8] ARM: dts: imx7ulp: remove bias-pull-up

i.MX7ULP pinctrl don't support bias-pull-up property. So remove it to fix
below CHECK_DTBS warnings:
  arch/arm/boot/dts/nxp/imx/imx7ulp-evk.dtb: pinctrl@...c0000 (fsl,imx7ulp-iomuxc1): lpuart4grp: 'bias-pull-up' does not match any of the regexes: '^pinctrl-[0-9]+$'

Signed-off-by: Frank Li <Frank.Li@....com>
---
 arch/arm/boot/dts/nxp/imx/imx7ulp-evk.dts | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/boot/dts/nxp/imx/imx7ulp-evk.dts b/arch/arm/boot/dts/nxp/imx/imx7ulp-evk.dts
index eff51e113db4f947b7532e2e1fca538da6d74f6c..88d7dc005fa0ea1d91fa561c0c3e4963c1459481 100644
--- a/arch/arm/boot/dts/nxp/imx/imx7ulp-evk.dts
+++ b/arch/arm/boot/dts/nxp/imx/imx7ulp-evk.dts
@@ -92,7 +92,6 @@ pinctrl_lpuart4: lpuart4grp {
 			IMX7ULP_PAD_PTC3__LPUART4_RX	0x3
 			IMX7ULP_PAD_PTC2__LPUART4_TX	0x3
 		>;
-		bias-pull-up;
 	};
 
 	pinctrl_pwm0: pwm0grp {

-- 
2.34.1