linux-kernel - Re: [PATCH v4 0/2] ARM: sun8i-r40: Enable usb otg support

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Date:   Mon, 4 Jul 2022 23:15:28 -0500
From:   Samuel Holland <samuel@...lland.org>
To:     Icenowy Zheng <icenowy@...c.io>, qianfanguijin@....com
Cc:     linux-sunxi@...ts.linux.dev,
        Andre Przywara <andre.przywara@....com>,
        Evgeny Boger <boger@...enboard.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 0/2] ARM: sun8i-r40: Enable usb otg support

On 5/23/22 8:11 AM, Icenowy Zheng wrote:
> 在 2022-05-18星期三的 18:17 +0800，qianfanguijin@....com写道：
>> From: qianfan Zhao <qianfanguijin@....com>
>>
>> History:
>> =======
>>
>> v4(2022-05-18):
>> - Enable both musb and OHCI/EHCI support
>>
>> Tests:
>> ======
>>
>> All test cases were tested on bananapi-m2-ultra.
>>
>> 1. USB DEVICE(ping test)
>>
>> Enable usb gadget rndis network, ping m2u on ubuntu host:
> 
> Interestingly musb previous totally fail when I initially work on R40.
> Maybe some phy-sun4i-usb patches fixed it by accident?

I tested this series on my BPi M2U, and both host and device mode work fine. So
indeed whatever bug was there must have been fixed. Possibly it was e6f32efb1b12
("phy: sun4i-usb: Make sure to disable PHY0 passby for peripheral mode").

Tested-by: Samuel Holland <samuel@...lland.org>