linux-kernel - Re: [PATCH v3] arm64: allwinner: a64: Add Amarula A64-Relic initial support

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Message-ID: <CAMty3ZD3JT-ToGAUHN_uj7uVK-jkyAwfEdTBCmJSj34bACFpYQ@mail.gmail.com>
Date:   Wed, 23 May 2018 11:44:56 +0530
From:   Jagan Teki <jagan@...rulasolutions.com>
To:     Maxime Ripard <maxime.ripard@...tlin.com>
Cc:     Chen-Yu Tsai <wens@...e.org>,
        Michael Trimarchi <michael@...rulasolutions.com>,
        Icenowy Zheng <icenowy@...c.io>,
        devicetree <devicetree@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-sunxi <linux-sunxi@...glegroups.com>
Subject: Re: [PATCH v3] arm64: allwinner: a64: Add Amarula A64-Relic initial support

On Tue, May 22, 2018 at 8:00 PM, Maxime Ripard
<maxime.ripard@...tlin.com> wrote:
> On Tue, May 22, 2018 at 06:52:28PM +0530, Jagan Teki wrote:
>> Amarula A64-Relic is Allwinner A64 based IoT device, which support
>> - Allwinner A64 Cortex-A53
>> - Mali-400MP2 GPU
>> - AXP803 PMIC
>> - 1GB DDR3 RAM
>> - 8GB eMMC
>> - AP6330 Wifi/BLE
>> - MIPI-DSI
>> - CSI: OV5640 sensor
>> - USB OTG
>
> You claim that this is doing OTG...
>
> [..]
>
>> +&usb_otg {
>> +     dr_mode = "peripheral";
>> +     status = "okay";
>> +};
>
> ... and yet you're setting it as peripheral...

Though it claims OTG, board doesn't have any USB ports to operate(not
even Mini-AB) the only way to use the board as peripheral to transfer
images from host.