linux-kernel - [PATCH 5/6] arm64: dts: imx8mp-evk: Use phys to replace xceiver-supply

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Message-Id: <20250822-can-v1-5-c075f702adea@nxp.com>
Date: Fri, 22 Aug 2025 12:05:32 +0800
From: Peng Fan <peng.fan@....com>
To: Marc Kleine-Budde <mkl@...gutronix.de>, 
 Vincent Mailhol <mailhol.vincent@...adoo.fr>, Vinod Koul <vkoul@...nel.org>, 
 Kishon Vijay Abraham I <kishon@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Aswath Govindraju <a-govindraju@...com>, 
 Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, Frank Li <frank.li@....com>, 
 Haibo Chen <haibo.chen@....com>
Cc: linux-can@...r.kernel.org, linux-phy@...ts.infradead.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
 Peng Fan <peng.fan@....com>
Subject: [PATCH 5/6] arm64: dts: imx8mp-evk: Use phys to replace
 xceiver-supply

The TJA1048 used on i.MX8MP-EVK is actually high-speed CAN
transceiver, not a regulator supply. So use phys to reflect the truth.

Signed-off-by: Peng Fan <peng.fan@....com>
---
 arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 43 +++++++++-------------------
 1 file changed, 13 insertions(+), 30 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
index c0cc5611048e6a739f13c14bbd2e7b26f2715696..d238d419d87cc7c99d472720c96aade90275cb0f 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
@@ -56,6 +56,16 @@ memory@...00000 {
 		      <0x1 0x00000000 0 0xc0000000>;
 	};
 
+	flexcan_phy: can-phy {
+		compatible = "nxp,tja1048";
+		#phy-cells = <1>;
+		max-bitrate = <5000000>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_flexcan_phy>;
+		standby-gpios = <&gpio5 5 GPIO_ACTIVE_LOW>,
+				<&gpio4 27 GPIO_ACTIVE_LOW>;
+	};
+
 	native-hdmi-connector {
 		compatible = "hdmi-connector";
 		label = "HDMI OUT";
@@ -103,28 +113,6 @@ reg_audio_pwr: regulator-audio-pwr {
 		enable-active-high;
 	};
 
-	reg_can1_stby: regulator-can1-stby {
-		compatible = "regulator-fixed";
-		regulator-name = "can1-stby";
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_flexcan1_reg>;
-		regulator-min-microvolt = <3300000>;
-		regulator-max-microvolt = <3300000>;
-		gpio = <&gpio5 5 GPIO_ACTIVE_HIGH>;
-		enable-active-high;
-	};
-
-	reg_can2_stby: regulator-can2-stby {
-		compatible = "regulator-fixed";
-		regulator-name = "can2-stby";
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_flexcan2_reg>;
-		regulator-min-microvolt = <3300000>;
-		regulator-max-microvolt = <3300000>;
-		gpio = <&gpio4 27 GPIO_ACTIVE_HIGH>;
-		enable-active-high;
-	};
-
 	reg_pcie0: regulator-pcie {
 		compatible = "regulator-fixed";
 		pinctrl-names = "default";
@@ -431,14 +419,14 @@ ethphy1: ethernet-phy@1 {
 &flexcan1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_flexcan1>;
-	xceiver-supply = <&reg_can1_stby>;
+	phys = <&flexcan_phy 0>;
 	status = "okay";
 };
 
 &flexcan2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_flexcan2>;
-	xceiver-supply = <&reg_can2_stby>;
+	phys = <&flexcan_phy 1>;
 	status = "disabled";/* can2 pin conflict with pdm */
 };
 
@@ -903,14 +891,9 @@ MX8MP_IOMUXC_SAI5_RXD3__CAN2_TX         0x154
 		>;
 	};
 
-	pinctrl_flexcan1_reg: flexcan1reggrp {
+	pinctrl_flexcan_phy: flexcanphygrp {
 		fsl,pins = <
 			MX8MP_IOMUXC_SPDIF_EXT_CLK__GPIO5_IO05  0x154   /* CAN1_STBY */
-		>;
-	};
-
-	pinctrl_flexcan2_reg: flexcan2reggrp {
-		fsl,pins = <
 			MX8MP_IOMUXC_SAI2_MCLK__GPIO4_IO27      0x154   /* CAN2_STBY */
 		>;
 	};

-- 
2.37.1