[PATCH linux-next v1 3/3] riscv: dts: spacemit: k1-bananapi-f3: Correct USB hub power hierarchy

[Anand Moon <linux.amoon@gmail.com>]

Link the usb3_hub_5v regulator to the USB controller’s vbus-supply to
ensure the USB 3.0 stack is properly powered as per the schematics.
In addition, align the USB hub regulator with the board schematics
by renaming it to VCC5V0_HUB and marking it as regulator-always-on
to maintain power stability.

Cc: Han Gao <gaohan@iscas.ac.cn>
Cc: Ze Huang <huang.ze@linux.dev>
Cc: Chukun Pan <amadeus@jmu.edu.cn>
Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
 arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts b/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts
index c35f4763c800..3dbdf53b6d8e 100644
--- a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts
@@ -83,9 +83,10 @@ reg_5v_vbus: regulator-usb3-vbus-5v {
 
 	usb3_hub_5v: regulator-usb3-hub-5v {
 		compatible = "regulator-fixed";
-		regulator-name = "USB30_HUB";
+		regulator-name = "VCC5V0_HUB";
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
+		regulator-always-on;
 		vin-supply = <&reg_vcc5v0_sys>;
 		gpio = <&gpio K1_GPIO(123) GPIO_ACTIVE_HIGH>;
 		enable-active-high;
@@ -361,6 +362,7 @@ &usb_dwc3 {
 	dr_mode = "host";
 	#address-cells = <1>;
 	#size-cells = <0>;
+	vbus-supply = <&usb3_hub_5v>;
 	status = "okay";
 
 	hub_2_0: hub@1 {
-- 
2.53.0