From: hdegoede@redhat.com (Hans de Goede)
To: linux-arm-kernel@lists.infradead.org
Subject: [linux-sunxi] Re: [PATCH 4/6] ARM: dts: sun7i: Enable USB DRC on pcDuino 3
Date: Thu, 20 Aug 2015 09:36:33 +0200 [thread overview]
Message-ID: <55D58381.7040801@redhat.com> (raw)
In-Reply-To: <20150820064545.GM30520@lukather>
Hi,
On 08/20/2015 08:45 AM, Maxime Ripard wrote:
> On Fri, Aug 14, 2015 at 04:44:35PM +0200, Hans de Goede wrote:
>> From: Jelle van der Waa <jelle@vdwaa.nl>
>>
>> Enable the otg/drc usb controller on the pcDuino 3.
>>
>> Note this board has the otg-vbus connected directly to the 5v-dcc of
>> the board, so there is no vbus0 regulator, nor vbus0-det.
>
> Can it do OTG then?
Yes.
> If VBUS is tied to the 5v, there's no way for the
> board to shut it down when acting as peripheral, right?
Correct, the idea is to power it over otg when using it
as a peripheral, or at least power it from a usb port of
the machine for which it is a peripheral. Note that the
original cubieboard (both A10 and A20 versions) have the
same issue.
Regards,
Hans
WARNING: multiple messages have this Message-ID (diff)
From: Hans de Goede <hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: Maxime Ripard
<maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
Cc: Jelle van der Waa <jelle-oJJ1AqDjjO4@public.gmane.org>,
Ralph Willekes <benadski-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
devicetree <devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
Subject: Re: [linux-sunxi] Re: [PATCH 4/6] ARM: dts: sun7i: Enable USB DRC on pcDuino 3
Date: Thu, 20 Aug 2015 09:36:33 +0200 [thread overview]
Message-ID: <55D58381.7040801@redhat.com> (raw)
In-Reply-To: <20150820064545.GM30520@lukather>
Hi,
On 08/20/2015 08:45 AM, Maxime Ripard wrote:
> On Fri, Aug 14, 2015 at 04:44:35PM +0200, Hans de Goede wrote:
>> From: Jelle van der Waa <jelle-oJJ1AqDjjO4@public.gmane.org>
>>
>> Enable the otg/drc usb controller on the pcDuino 3.
>>
>> Note this board has the otg-vbus connected directly to the 5v-dcc of
>> the board, so there is no vbus0 regulator, nor vbus0-det.
>
> Can it do OTG then?
Yes.
> If VBUS is tied to the 5v, there's no way for the
> board to shut it down when acting as peripheral, right?
Correct, the idea is to power it over otg when using it
as a peripheral, or at least power it from a usb port of
the machine for which it is a peripheral. Note that the
original cubieboard (both A10 and A20 versions) have the
same issue.
Regards,
Hans
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next prev parent reply other threads:[~2015-08-20 7:36 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-14 14:44 [PATCH 0/6] ARM: dts: sunxi: Various sunxi devicetree patches Hans de Goede
2015-08-14 14:44 ` Hans de Goede
2015-08-14 14:44 ` [PATCH 1/6] ARM: dts: sun5i: Add simplefb node for tvencoder output Hans de Goede
2015-08-14 14:44 ` Hans de Goede
2015-08-20 6:43 ` Maxime Ripard
2015-08-20 6:43 ` Maxime Ripard
2015-08-14 14:44 ` [PATCH 2/6] ARM: dts: sun7i: Enable i2c bus 1 and 2 on the Wits A20 Pro DKT Hans de Goede
2015-08-14 14:44 ` Hans de Goede
2015-08-14 14:50 ` Hans de Goede
2015-08-14 14:50 ` Hans de Goede
2015-08-14 14:44 ` [PATCH 3/6] ARM: dts: sun7i: Add regulator configuration to the pcduino3 dts file Hans de Goede
2015-08-14 14:44 ` Hans de Goede
2015-08-20 6:44 ` Maxime Ripard
2015-08-20 6:44 ` Maxime Ripard
2015-08-14 14:44 ` [PATCH 4/6] ARM: dts: sun7i: Enable USB DRC on pcDuino 3 Hans de Goede
2015-08-14 14:44 ` Hans de Goede
2015-08-20 6:45 ` Maxime Ripard
2015-08-20 6:45 ` Maxime Ripard
2015-08-20 7:36 ` Hans de Goede [this message]
2015-08-20 7:36 ` [linux-sunxi] " Hans de Goede
2015-08-20 15:03 ` Maxime Ripard
2015-08-20 15:03 ` Maxime Ripard
2015-08-14 14:44 ` [PATCH 5/6] ARM: dts: sun7i: Enable USB DRC on cubieboard2 Hans de Goede
2015-08-14 14:44 ` Hans de Goede
2015-08-20 15:04 ` Maxime Ripard
2015-08-20 15:04 ` Maxime Ripard
2015-08-14 14:44 ` [PATCH 6/6] ARM: dts: sun8i: Add support for qt90h-v4 tablets Hans de Goede
2015-08-14 14:44 ` Hans de Goede
2015-08-20 6:47 ` Maxime Ripard
2015-08-20 6:47 ` Maxime Ripard
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