linux-kernel - Re: [PATCH] usb: typec: tcpm: always rediscover when swapping DR

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Message-ID: <E1804EE0-CBA1-4BE8-875B-57E82EDECDBE@aosc.io>
Date:   Wed, 18 Aug 2021 22:02:24 +0800
From:   Icenowy Zheng <icenowy@...c.io>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>
CC:     Guenter Roeck <linux@...ck-us.net>, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] usb: typec: tcpm: always rediscover when swapping DR



于 2021年8月18日 GMT+08:00 下午9:56:38, Greg Kroah-Hartman <gregkh@...uxfoundation.org> 写到:
>On Tue, Aug 17, 2021 at 02:00:33PM +0300, Heikki Krogerus wrote:
>> > >Why is it necessary to do discovery with data role swap in general?
>> > 
>> > I think it could be possible for devices to expose different altmode
>> > with different role.
>> 
>> OK. FWIW:
>> 
>> Acked-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
>
>Is this conflicting with https://lore.kernel.org/r/20210816075449.2236547-1-kyletso@google.com ?
>
>Which of these two should I take, both?  Neither?

Don't take this, it's against spec.

Thanks,
Icenowy

>
>confused,
>
>greg k-h