From 5e04822f7db504cd2cdc9074bc79c84657222567 Mon Sep 17 00:00:00 2001
From: Peter Rosin <peda@axentia.se>
Date: Wed, 21 Mar 2018 16:35:50 +0100
Subject: ARM: dts: at91: fixes uart pinctrl, set pullup on rx, clear pullup on
 tx

Remove pullup on uart TX signals, they are push-pull outputs thus
pullups are pointless.

Add pullup on uart RX signals, they prevent the RX signals to be left
floating and so consuming a useless extra amount of power in crowbarred
state if nothing is connected to RX.

Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
 arch/arm/boot/dts/at91sam9n12.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch/arm/boot/dts/at91sam9n12.dtsi')

diff --git a/arch/arm/boot/dts/at91sam9n12.dtsi b/arch/arm/boot/dts/at91sam9n12.dtsi
index 4b62f4f963f6..37cb81f457b5 100644
--- a/arch/arm/boot/dts/at91sam9n12.dtsi
+++ b/arch/arm/boot/dts/at91sam9n12.dtsi
@@ -641,8 +641,8 @@
 				uart1 {
 					pinctrl_uart1: uart1-0 {
 						atmel,pins =
-							<AT91_PIOC 16 AT91_PERIPH_C AT91_PINCTRL_PULL_UP	/* PC17 periph C with pullup */
-							 AT91_PIOC 17 AT91_PERIPH_C AT91_PINCTRL_NONE>;	/* PC16 periph C */
+							<AT91_PIOC 16 AT91_PERIPH_C AT91_PINCTRL_NONE
+							 AT91_PIOC 17 AT91_PERIPH_C AT91_PINCTRL_PULL_UP>;
 					};
 				};
 
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