Difuse/difos
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

ramips: dts: mt7621: add the missing XHCI power regulators

Browse source 
The USB power regulators are essential for the Mediatek XHCI
controller. If any of them is missing, the kernel will throw
a warning. Add fixed voltage io/vbus regulators to workaround
this issue. Fix the following warnings:

[    7.514572] xhci-mtk 1e1c0000.xhci: supply vbus not found, using dummy regulator
[    7.522375] xhci-mtk 1e1c0000.xhci: supply vusb33 not found, using dummy regulator

Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
Link: https://github.com/openwrt/openwrt/pull/18886
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit is contained in:
Shiji Yang 2025-05-20 07:50:56 +08:00 committed by Hauke Mehrtens
parent 300335f1ff
commit 51b77a3298
1 changed files with 19 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
target/linux/ramips/dts/mt7621.dtsi
View file

@ -64,6 +64,22 @@
regulator-name = "mmc_power";
};
reg_vbus: regulator-vbus {
compatible = "regulator-fixed";
regulator-always-on;
regulator-max-microvolt = <5000000>;
regulator-min-microvolt = <5000000>;
regulator-name = "usb_power";
};
reg_vusb33: regulator-vusb33 {
compatible = "regulator-fixed";
regulator-always-on;
regulator-max-microvolt = <3300000>;
regulator-min-microvolt = <3300000>;
regulator-name = "usb_io";
};
palmbus: palmbus@1e000000 {
compatible = "palmbus";
reg = <0x1e000000 0x100000>;
@ -395,6 +411,9 @@
interrupt-parent = <&gic>;
interrupts = <GIC_SHARED 22 IRQ_TYPE_LEVEL_HIGH>;
vbus-supply = <&reg_vbus>;
vusb33-supply = <&reg_vusb33>;
/*
* Port 1 of both hubs is one usb slot and referenced here.
* The binding doesn't allow to address individual hubs.