[PATCH v1 1/1] arm64: dts: freescale: imx9-var-dart-sonata: fix Ethernet PHY configuration

[Stefano Radaelli <stefano.radaelli21@gmail.com>]

From: Stefano Radaelli <stefano.r@variscite.com>

Fix the Ethernet PHY description on the DART-MX9 Sonata boards.

The GPIO previously described as the PHY reset line is actually a
board-level enable signal required by the PHY. Model it accordingly and
remove the incorrect reset GPIO description from the PHY nodes.

On i.MX91 and i.MX93 the signal is described as a fixed regulator,
whereas the existing regulator description on i.MX95 is reused.

Keeping the PHY enable asserted during boot ensures that Ethernet
initialization completes successfully.

Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
---
 .../boot/dts/freescale/imx91-var-dart-sonata.dts   | 14 +++++++++++---
 .../boot/dts/freescale/imx93-var-dart-sonata.dts   | 14 +++++++++++---
 .../boot/dts/freescale/imx95-var-dart-sonata.dts   |  3 ---
 3 files changed, 22 insertions(+), 9 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx91-var-dart-sonata.dts b/arch/arm64/boot/dts/freescale/imx91-var-dart-sonata.dts
index 3f0fd321d95f..f7e32f9375f5 100644
--- a/arch/arm64/boot/dts/freescale/imx91-var-dart-sonata.dts
+++ b/arch/arm64/boot/dts/freescale/imx91-var-dart-sonata.dts
@@ -97,6 +97,17 @@ reg_rgb_sel: regulator-rgb-enable {
 		enable-active-high;
 	};
 
+	reg_phy1_supply: regulator-phy1 {
+		compatible = "regulator-fixed";
+		regulator-name = "SUPPLY_PHY1";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&pca6408_2 0 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		startup-delay-us = <10000>;
+		regulator-always-on;
+	};
+
 	reg_usdhc2_vmmc: regulator-vmmc-usdhc2 {
 		compatible = "regulator-fixed";
 		pinctrl-names = "default";
@@ -139,9 +150,6 @@ mdio {
 		ethphy1: ethernet-phy@1 {
 			compatible = "ethernet-phy-ieee802.3-c22";
 			reg = <1>;
-			reset-gpios = <&pca6408_2 0 GPIO_ACTIVE_LOW>;
-			reset-assert-us = <15000>;
-			reset-deassert-us = <100000>;
 
 			leds {
 				#address-cells = <1>;
diff --git a/arch/arm64/boot/dts/freescale/imx93-var-dart-sonata.dts b/arch/arm64/boot/dts/freescale/imx93-var-dart-sonata.dts
index 5513d3b148a2..1ca3ec8330d0 100644
--- a/arch/arm64/boot/dts/freescale/imx93-var-dart-sonata.dts
+++ b/arch/arm64/boot/dts/freescale/imx93-var-dart-sonata.dts
@@ -103,6 +103,17 @@ reg_vref_1v8: regulator-adc-vref {
 		regulator-min-microvolt = <1800000>;
 	};
 
+	reg_phy1_supply: regulator-phy1 {
+		compatible = "regulator-fixed";
+		regulator-name = "SUPPLY_PHY1";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&pca6408_2 0 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		startup-delay-us = <10000>;
+		regulator-always-on;
+	};
+
 	reg_usdhc2_vmmc: regulator-vmmc-usdhc2 {
 		compatible = "regulator-fixed";
 		regulator-name = "VDD_SD2_3V3";
@@ -180,9 +191,6 @@ mdio {
 		ethphy1: ethernet-phy@1 {
 			compatible = "ethernet-phy-ieee802.3-c22";
 			reg = <1>;
-			reset-assert-us = <15000>;
-			reset-deassert-us = <100000>;
-			reset-gpios = <&pca6408_2 0 GPIO_ACTIVE_LOW>;
 
 			leds {
 				#address-cells = <1>;
diff --git a/arch/arm64/boot/dts/freescale/imx95-var-dart-sonata.dts b/arch/arm64/boot/dts/freescale/imx95-var-dart-sonata.dts
index 7a58ad38ffb4..ccf7e77016e4 100644
--- a/arch/arm64/boot/dts/freescale/imx95-var-dart-sonata.dts
+++ b/arch/arm64/boot/dts/freescale/imx95-var-dart-sonata.dts
@@ -346,9 +346,6 @@ &netc_emdio {
 	ethphy1: ethernet-phy@1 {
 		compatible = "ethernet-phy-ieee802.3-c22";
 		reg = <1>;
-		reset-gpios = <&pca6408_2 0 GPIO_ACTIVE_LOW>;
-		reset-assert-us = <10000>;
-		reset-deassert-us = <100000>;
 
 		leds {
 			#address-cells = <1>;
-- 
2.47.3