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| Started by | Maxime Ripard <maxime.ripard@free-electrons.com> |
|---|---|
| First post | 2017-01-12 18:00 +0100 |
| Last post | 2017-01-12 18:00 +0100 |
| Articles | 1 — 1 participant |
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Re: [linux-sunxi] Re: [PATCH 4/5] ARM: dts: sunxi: add dtsi file for V3s SoC Maxime Ripard <maxime.ripard@free-electrons.com> - 2017-01-12 18:00 +0100
| From | Maxime Ripard <maxime.ripard@free-electrons.com> |
|---|---|
| Date | 2017-01-12 18:00 +0100 |
| Subject | Re: [linux-sunxi] Re: [PATCH 4/5] ARM: dts: sunxi: add dtsi file for V3s SoC |
| Message-ID | <sYQTf-6jV-1@gated-at.bofh.it> |
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On Wed, Jan 11, 2017 at 11:56:32AM +0800, Icenowy Zheng wrote:
>
> 2017年1月11日 02:21于 Maxime Ripard <maxime.ripard@free-electrons.com>写道：
> >
> > On Tue, Jan 03, 2017 at 11:16:28PM +0800, Icenowy Zheng wrote:
> > > + uart0_pins_a: uart0@0 {
> > > + pins = "PB8", "PB9";
> > > + function = "uart0";
> > > + bias-pull-up;
> >
> > Why do you need a pullup here?
>
> I think TX needs one, but RX do not need.
That's (at best) board specific. So it belongs in the DTS if it's
truely needed.
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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