From: Bin Liu <b-liu@ti.com>
To: Min Guo <min.guo@mediatek.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
Rob Herring <robh@kernel.org>,
devicetree@vger.kernel.org, tony@atomide.com,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
hdegoede@redhat.com, chunfeng.yun@mediatek.com,
Alan Stern <stern@rowland.harvard.edu>,
Matthias Brugger <matthias.bgg@gmail.com>,
linux-mediatek@lists.infradead.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v4 1/6] dt-bindings: usb: musb: Add support for MediaTek musb controller
Date: Tue, 22 Jan 2019 08:33:48 -0600 [thread overview]
Message-ID: <20190122143348.GF30080@uda0271908> (raw)
In-Reply-To: <1548149773.4433.284.camel@mhfsdcap03>
Hi Min,
On Tue, Jan 22, 2019 at 05:36:13PM +0800, Min Guo wrote:
> Hi Bin,
>
> Sorry to bother you again, I encounter a problem about the extcon
> property.
>
> I don't find a common driver describing the usb-connector. Is
> there any driver that I can refer to, specially the way to switch MUSB
> controller between host and device mode?
> If it needs to implement by myself, is it possible to emulate an
> usb-connector driver by extcon-usb-gpio, and also use the notifier
> mechanism or can you give me some advices?
I am afraid I am unable to help you on this. I wasn't really pay
attention when usb-connector was introduced and not sure how it can
replace extcon. Now after read usb-connector.txt, it seems the binding
only defines a/b/c-connector, but not ab-connector, and there is no
enough information (at least for me) explaining how VBUS and ID fix into
this usb-connector binding.
Maybe Rob can provide some hint.
Regards,
-Bin.
next prev parent reply other threads:[~2019-01-22 14:33 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-21 12:22 [PATCH v4 0/6] Add MediaTek MUSB Controller Driver min.guo
2019-01-21 12:22 ` [PATCH v4 1/6] dt-bindings: usb: musb: Add support for MediaTek musb controller min.guo
2019-01-21 15:14 ` Rob Herring
2019-01-22 9:36 ` Min Guo
2019-01-22 14:33 ` Bin Liu [this message]
2019-01-25 2:07 ` Min Guo
2019-02-14 8:30 ` Min Guo
2019-01-21 12:22 ` [PATCH v4 2/6] arm: dts: mt2701: Add usb2 device nodes min.guo
2019-01-21 12:22 ` [PATCH v4 3/6] usb: musb: Add get/set toggle hooks min.guo
2019-01-21 12:22 ` [PATCH v4 4/6] usb: musb: Add noirq type of dma create interface min.guo
2019-01-21 12:22 ` [PATCH v4 5/6] usb: musb: Add musb_clearb/w() interface min.guo
2019-01-21 15:59 ` Bin Liu
2019-01-22 1:43 ` Min Guo
2019-01-21 12:22 ` [PATCH v4 6/6] usb: musb: Add support for MediaTek musb controller min.guo
2019-01-21 16:07 ` Bin Liu
2019-01-22 1:45 ` Min Guo
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