From: Francesco Dolcini <francesco.dolcini@toradex.com>
Date: Thu, 9 Apr 2026 09:58:50 +0000 (+0200)
Subject: arm64: dts: freescale: imx8mp-verdin: Split UART_2 pinctrl group
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=097418652e6ab85d4c737c01f3e024fb2399b289;p=thirdparty%2Flinux.git

arm64: dts: freescale: imx8mp-verdin: Split UART_2 pinctrl group

Some carrier board reuse the UART_2 control signals as GPIO, split
the pinctrl RTS/CTS in separated nodes to maximize flexibility.

Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi
index d31f8082394f..9fee2cf9ef54 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp-verdin.dtsi
@@ -846,7 +846,7 @@
 /* Verdin UART_2 */
 &uart2 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_uart2>;
+	pinctrl-0 = <&pinctrl_uart2>, <&pinctrl_uart2_cts>, <&pinctrl_uart2_rts>;
 	uart-has-rtscts;
 };
 
@@ -1277,10 +1277,18 @@
 			<MX8MP_IOMUXC_UART1_TXD__UART1_DCE_TX		0x1c4>;	/* SODIMM 131 */
 	};
 
+	pinctrl_uart2_cts: uart2ctsgrp {
+		fsl,pins =
+			<MX8MP_IOMUXC_SD1_DATA4__UART2_DCE_RTS		0x1c4>;	/* SODIMM 143 */
+	};
+
+	pinctrl_uart2_rts: uart2rtsgrp {
+		fsl,pins =
+			<MX8MP_IOMUXC_SD1_DATA5__UART2_DCE_CTS		0x1c4>;	/* SODIMM 141 */
+	};
+
 	pinctrl_uart2: uart2grp {
 		fsl,pins =
-			<MX8MP_IOMUXC_SD1_DATA4__UART2_DCE_RTS		0x1c4>,	/* SODIMM 143 */
-			<MX8MP_IOMUXC_SD1_DATA5__UART2_DCE_CTS		0x1c4>,	/* SODIMM 141 */
 			<MX8MP_IOMUXC_UART2_RXD__UART2_DCE_RX		0x1c4>,	/* SODIMM 137 */
 			<MX8MP_IOMUXC_UART2_TXD__UART2_DCE_TX		0x1c4>; /* SODIMM 139 */
 	};