From: Maxime Ripard <maxime.ripard@free-electrons.com>
To: "André Przywara" <andre.przywara@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
Vishnu Patekar <vishnupatekar0510@gmail.com>,
Arnd Bergmann <arnd@arndb.de>, Jonathan Corbet <corbet@lwn.net>,
"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
Russell King <linux@armlinux.org.uk>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Hans de Goede <hdegoede@redhat.com>, Chen-Yu Tsai <wens@csie.org>,
Icenowy Zheng <icenowy@aosc.xyz>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v2 2/3] ARM: dts: sunxi: add support for Orange Pi Zero board
Date: Thu, 1 Dec 2016 10:36:19 +0100 [thread overview]
Message-ID: <20161201093619.gs6lmoxtlptp2jr6@lukather> (raw)
In-Reply-To: <cdfd3c65-d473-badb-ea6a-035f7ab79217@arm.com>
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On Mon, Nov 28, 2016 at 12:29:07AM +0000, André Przywara wrote:
> > Something more interesting happened.
> >
> > Xunlong made a add-on board for Orange Pi Zero, which exposes the
> > two USB Controllers exported at expansion bus as USB Type-A
> > connectors.
> >
> > Also it exposes a analog A/V jack and a microphone.
> >
> > Should I enable {e,o}hci{2.3} in the device tree?
>
> Actually we should do this regardless of this extension board. The USB
> pins are not multiplexed and are exposed on user accessible pins (just
> not soldered, but that's a detail), so I think they qualify for DT
> enablement. And even if a user can't use them, it doesn't hurt to have
> them (since they are not multiplexed).
My main concern about this is that we'll leave regulators enabled by
default, for a minority of users. And that minority will prevent to do
a proper power management when the times come since we'll have to keep
that behaviour forever.
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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next prev parent reply other threads:[~2016-12-01 9:36 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-21 16:24 [PATCH v2 1/3] ARM: sunxi: add support for H2+ SoC Icenowy Zheng
2016-11-21 16:24 ` [PATCH v2 2/3] ARM: dts: sunxi: add support for Orange Pi Zero board Icenowy Zheng
2016-11-23 7:57 ` Maxime Ripard
2016-11-23 9:23 ` Andre Przywara
[not found] ` <a4393a37-5008-ec76-9886-05f8686dadd5-5wv7dgnIgG8@public.gmane.org>
2016-11-24 21:29 ` Maxime Ripard
2016-11-27 9:36 ` Icenowy Zheng
2016-11-28 0:29 ` André Przywara
2016-12-01 9:36 ` Maxime Ripard [this message]
2016-12-02 14:22 ` Icenowy Zheng
2016-12-02 14:30 ` Hans de Goede
2016-12-02 14:32 ` Icenowy Zheng
2016-12-02 16:10 ` Andre Przywara
2016-12-02 16:37 ` Chen-Yu Tsai
2016-12-05 9:05 ` Maxime Ripard
2016-12-05 8:52 ` Maxime Ripard
2016-11-21 16:24 ` [PATCH 3/3] ARM: dts: sunxi: enable SDIO Wi-Fi on Orange Pi Zero Icenowy Zheng
2016-11-23 7:59 ` Maxime Ripard
2016-11-23 14:25 ` Chen-Yu Tsai
2016-11-23 14:29 ` Hans de Goede
2016-11-24 21:30 ` Maxime Ripard
2016-11-23 7:54 ` [PATCH v2 1/3] ARM: sunxi: add support for H2+ SoC Maxime Ripard
[not found] <20161205120021.0GBGtAl4@smtp3m.mail.yandex.net>
2016-12-05 9:40 ` [PATCH v2 2/3] ARM: dts: sunxi: add support for Orange Pi Zero board Maxime Ripard
2016-12-05 11:01 ` Icenowy Zheng
2016-12-06 8:00 ` Maxime Ripard
2016-12-06 15:16 ` Icenowy Zheng
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