linux-kernel - Aw: [BUG] USB broken on rk3568 based R2Pro

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Message-ID: <trinity-ec3b4258-cb12-42c2-9058-362260a275d2-1657216287085@3c-app-gmx-bap68>
Date:   Thu, 7 Jul 2022 19:51:27 +0200
From:   Frank Wunderlich <frank-w@...lic-files.de>
To:     Samuel Holland <samuel@...lland.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Vinod Koul <vkoul@...nel.org>
Cc:     linux-phy@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Kishon Vijay Abraham I <kishon@...com>,
        Heiko Stuebner <heiko@...ech.de>,
        Peter Geis <pgwipeout@...il.com>
Subject: Aw: [BUG] USB broken on rk3568 based R2Pro

Hi,

traced it down with manual reverts to this one:

commit 6a98df08ccd55e87947d253b19925691763e755c
    phy: rockchip-inno-usb2: Fix muxed interrupt support

luckily i can revert only this and now upper usb-port works again

@samuel: have you an idea how to fix your problem without breaking my board? :)

@greg/Vinod: maybe we can add a revert of this in mainline till issue is resolved?

regards Frank


> Von: "Frank Wunderlich" <frank-w@...lic-files.de>
> i noticed that upper usb-Port (otg) is broken on my Bananapi R2Pro with 5.19-rc1, works with 5.18.0
>
> this port is a usb3 (xhci) port which includes an usb2-phy and should support otg, but i still want
> to use it in host-only mode (USB-A socket).
>
> already tried setting dr_mode in dts back to "host" as this was changed in rk356x.dtsi by this commit:
>
> bc405bb3eeee 2022-04-25 arm64: dts: rockchip: enable otg/drd operation of usb_host0_xhci in rk356x
>
> i see no error in dmesg and usb-controllers seem to be initialized completely (visible in lsusb).
>
> r2pro has ID-Pin not connected, so i tried also peters Patch without success :(