linux-kernel - Re: [PATCH 1/5] phy: amlogic: phy-meson-gxl-usb2: keep ID pull-up even in Host mode

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Message-ID: <CAFBinCAAv1fUxO+u7NRuXw8rUqa=z5GYEaPMr7CRq+dasQ6oXw@mail.gmail.com>
Date:   Tue, 15 Sep 2020 21:53:35 +0200
From:   Martin Blumenstingl <martin.blumenstingl@...glemail.com>
To:     Neil Armstrong <narmstrong@...libre.com>
Cc:     khilman@...libre.com, kishon@...com,
        linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org
Subject: Re: [PATCH 1/5] phy: amlogic: phy-meson-gxl-usb2: keep ID pull-up
 even in Host mode

On Wed, Sep 9, 2020 at 6:04 PM Neil Armstrong <narmstrong@...libre.com> wrote:
>
> In order to keep OTG ID detection even when in Host mode, the ID line of
> the PHY (if the current phy is an OTG one) pull-up should be kept
> enable in both modes.
>
> This fixes OTG switch on GXL, GXM & AXG platforms, otherwise once switched
> to Host, the ID detection doesn't work anymore to switch back to Device.
>
> Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>