linux-kernel - Re: [RFT PATCH 6/6] ARM64: dts: meson-gxbb: Add USB Hub GPIO hog

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Date:   Tue, 28 Mar 2017 11:31:38 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Neil Armstrong <narmstrong@...libre.com>
Cc:     Kevin Hilman <khilman@...libre.com>,
        Carlo Caione <carlo@...one.org>,
        "open list:ARM/Amlogic Meson..." <linux-amlogic@...ts.infradead.org>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [RFT PATCH 6/6] ARM64: dts: meson-gxbb: Add USB Hub GPIO hog

On Thu, Mar 23, 2017 at 5:27 PM, Neil Armstrong <narmstrong@...libre.com> wrote:

> The ODroid-C2 on-board USB Hub needs to to have it's reset signal set to
> high level in order to be enumerated by the USB Host Controller.
>
> But this management must be part of the currently in-development Generic
> Power Sequence patch that will allow a USB Controller driver to start and stop
> a power sequence associated to the USB Bus.
>
> In the meantime, a simple USB Hog will work to enable the USB Hub.
>
> Signed-off-by: Neil Armstrong <narmstrong@...libre.com>

Reviewed-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij