Re: Re: [PATCH 4/5] ARM: dts: sunxi: add dtsi file for V3s SoC

On Wed, Jan 11, 2017 at 11:56:32AM +0800, Icenowy Zheng wrote:

2017年1月11日 02:21于 Maxime Ripard [off-list ref]写道：

quoted

On Tue, Jan 03, 2017 at 11:16:28PM +0800, Icenowy Zheng wrote: 

quoted

+ 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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