linux-kernel - [PATCH v2] arm64: dts: amlogic: Update USB hub power and reset properties

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Message-ID: <20250521074535.16488-1-linux.amoon@gmail.com>
Date: Wed, 21 May 2025 13:15:31 +0530
From: Anand Moon <linux.amoon@...il.com>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Kevin Hilman <khilman@...libre.com>,
	Jerome Brunet <jbrunet@...libre.com>,
	Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS),
	linux-arm-kernel@...ts.infradead.org (moderated list:ARM/Amlogic Meson SoC support),
	linux-amlogic@...ts.infradead.org (open list:ARM/Amlogic Meson SoC support),
	linux-kernel@...r.kernel.org (open list)
Cc: Anand Moon <linux.amoon@...il.com>,
	Wayne Schroeder <raz@...wies.net>
Subject: [PATCH v2] arm64: dts: amlogic: Update USB hub power and reset properties

Add missing reset-gpios property to the USB 2.0 hub node to
ensure proper reset handling. Also update the vdd-supply for
both USB 2.0 and 3.0 hubs to use the shared hub_5v regulator
for consistent power management. Remove usb2_phy1 phy-supply
since now it's managed by the hub reset control.

Fixes: ccff36934137 ("arm64: dts: amlogic: Used onboard usb hub reset on odroid n2")
Signed-off-by: Anand Moon <linux.amoon@...il.com>
---
v2: remove usb2_phy1 phy-supply since now it's managed by
the hub reset control.
---
 arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
index 3bca8023638d..d46b6aaef8fa 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
@@ -42,7 +42,8 @@ hub_2_0: hub@1 {
 			compatible = "usb5e3,610";
 			reg = <1>;
 			peer-hub = <&hub_3_0>;
-			vdd-supply = <&usb_pwr_en>;
+			reset-gpios = <&gpio GPIOH_4 GPIO_ACTIVE_LOW>;
+			vdd-supply = <&hub_5v>;
 		};
 
 		/* 3.0 hub on port 4 */
@@ -51,7 +52,7 @@ hub_3_0: hub@2 {
 			reg = <2>;
 			peer-hub = <&hub_2_0>;
 			reset-gpios = <&gpio GPIOH_4 GPIO_ACTIVE_LOW>;
-			vdd-supply = <&vcc_5v>;
+			vdd-supply = <&hub_5v>;
 		};
 	};
 
@@ -311,8 +312,3 @@ &toacodec {
 &usb {
 	vbus-supply = <&usb_pwr_en>;
 };
-
-&usb2_phy1 {
-	/* Enable the hub which is connected to this port */
-	phy-supply = <&hub_5v>;
-};

base-commit: 4a95bc121ccdaee04c4d72f84dbfa6b880a514b6
-- 
2.49.0