From: Bin Liu <b-liu@ti.com>
To: Icenowy Zheng <icenowy@aosc.xyz>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>,
Chen-Yu Tsai <wens@csie.org>,
Kishon Vijay Abraham I <kishon@ti.com>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>
Subject: Re: [PATCH 4/4] ARM: dts: sun8i: add OTG function to Lichee Pi Zero
Date: Wed, 11 Jan 2017 14:08:11 -0600 [thread overview]
Message-ID: <20170111200811.GA16865@uda0271908> (raw)
In-Reply-To: <2733831484164533@web1g.yandex.ru>
On Thu, Jan 12, 2017 at 03:55:33AM +0800, Icenowy Zheng wrote:
>
>
> 11.01.2017, 04:24, "Bin Liu" <b-liu@ti.com>:
> > On Tue, Jan 03, 2017 at 11:25:34PM +0800, Icenowy Zheng wrote:
> >> Lichee Pi Zero features a USB OTG port.
> >>
> >> Add support for it.
> >>
> >> Note: in order to use the Host mode, the board must be powered via the
> >> +5V and GND pins.
> >>
> >> Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
> >> ---
> >> arch/arm/boot/dts/sun8i-v3s-licheepi-zero.dts | 10 ++++++++++
> >> 1 file changed, 10 insertions(+)
> >>
> >> diff --git a/arch/arm/boot/dts/sun8i-v3s-licheepi-zero.dts b/arch/arm/boot/dts/sun8i-v3s-licheepi-zero.dts
> >> index 0099affc6ce3..3d9168cbaeca 100644
> >> --- a/arch/arm/boot/dts/sun8i-v3s-licheepi-zero.dts
> >> +++ b/arch/arm/boot/dts/sun8i-v3s-licheepi-zero.dts
> >> @@ -71,3 +71,13 @@
> >> pinctrl-names = "default";
> >> status = "okay";
> >> };
> >> +
> >> +&usb_otg {
> >> + dr_mode = "otg";
> >
> > Why not set this default mode in dtsi instead?
> >
> > Regards,
> > -Bin.
>
> There's possibly boards which do not have OTG functions.
That is board specific.
You'd better to define the default dr_mode which the musb _controller_
supports in the dtsi, and then override it in a specific board dts if
necessary.
Regards,
-Bin.
>
> Even the official CDR design of V3s uses the USB controller to
> connect a UVC webcam to make the design a dual-cam design
> (V3s itself has a CSI).
>
> >
> >> + status = "okay";
> >> +};
> >> +
> >> +&usbphy {
> >> + usb0_id_det-gpio = <&pio 5 6 GPIO_ACTIVE_HIGH>;
> >> + status = "okay";
> >> +};
> >> --
> >> 2.11.0
next prev parent reply other threads:[~2017-01-11 20:09 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20170103152534.20118-1-icenowy@aosc.xyz>
[not found] ` <20170103152534.20118-2-icenowy@aosc.xyz>
2017-01-06 13:56 ` [PATCH 1/4] phy: sun4i-usb: add support for V3s USB PHY Maxime Ripard
2017-01-16 9:06 ` Kishon Vijay Abraham I
[not found] ` <20170103152534.20118-3-icenowy@aosc.xyz>
2017-01-06 13:57 ` [PATCH 2/4] musb: sunxi: add support for the variant in H3/V3s SoC Maxime Ripard
2017-01-17 14:38 ` Bin Liu
[not found] ` <20170103152534.20118-4-icenowy@aosc.xyz>
2017-01-06 14:19 ` [PATCH 3/4] ARM: dts: sunxi: add usb_otg and usbphy node for V3s SoC Maxime Ripard
[not found] ` <20170103152534.20118-5-icenowy@aosc.xyz>
2017-01-10 20:24 ` [PATCH 4/4] ARM: dts: sun8i: add OTG function to Lichee Pi Zero Bin Liu
[not found] ` <2733831484164533@web1g.yandex.ru>
2017-01-11 20:08 ` Bin Liu [this message]
[not found] ` <418251484165614@web21h.yandex.ru>
2017-01-11 20:33 ` Bin Liu
2017-01-11 21:06 ` Maxime Ripard
2017-01-12 14:50 ` Bin Liu
2017-01-12 17:39 ` Maxime Ripard
2017-01-13 21:00 ` Bin Liu
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