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rockchip: dts: rock64: Fix XHCI usage

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If the VBUS regulator is always-on, XHCI will fail to detect USB 3.0
devices; USB 2.0 devices will work however.

Make the VBUS regulator controllable and tie it to only the XHCI. This
makes all three USB ports usable.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
This commit is contained in:
Chen-Yu Tsai 2020-04-27 14:52:54 +08:00 committed by Kever Yang
parent bab972948e
commit 062baa2566
1 changed files with 11 additions and 0 deletions
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11
arch/arm/dts/rk3328-rock64-u-boot.dtsi
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@ -12,5 +12,16 @@
};
&usb_host0_xhci {
vbus-supply = <&vcc_host_5v>;
status = "okay";
};
/*
* This makes XHCI responsible for toggling VBUS. This is needed to work
* around an issue where either XHCI only works with USB 2.0 or OTG doesn't
* work, depending on how VBUS is configured. Having USB 3.0 seems better.
*/
&vcc_host_5v {
/delete-property/ regulator-always-on;
/delete-property/ regulator-boot-on;
};