diff options
| author | Chen-Yu Tsai <wens@csie.org> | 2020-04-27 14:52:54 +0800 |
|---|---|---|
| committer | Kever Yang <kever.yang@rock-chips.com> | 2020-05-01 18:32:56 +0800 |
| commit | 062baa25661ed30af10e16fe9d147bb2300b15bd (patch) | |
| tree | 5e3e09b0193362151053b6840edc3b82ab823128 /arch/arm | |
| parent | bab972948e152e468fa5ab34764769fc4cddcaab (diff) | |
rockchip: dts: rock64: Fix XHCI usage
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>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/dts/rk3328-rock64-u-boot.dtsi | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/dts/rk3328-rock64-u-boot.dtsi b/arch/arm/dts/rk3328-rock64-u-boot.dtsi index e5946d2d2d..8318bf4e60 100644 --- a/arch/arm/dts/rk3328-rock64-u-boot.dtsi +++ b/arch/arm/dts/rk3328-rock64-u-boot.dtsi @@ -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; +}; |