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ARM: dts: at91: fixes uart pinctrl, set pullup on rx, clear pullup on tx

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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>
This commit is contained in:
Peter Rosin
2018-03-21 16:35:50 +01:00
committed by Alexandre Belloni
parent e8fd0adf10
commit 5e04822f7d
12 changed files with 82 additions and 82 deletions
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12
arch/arm/boot/dts/at91sam9rl.dtsi
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@@ -720,8 +720,8 @@
usart1 {
pinctrl_usart1: usart1-0 {
atmel,pins =
<AT91_PIOA 11 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>,
<AT91_PIOA 12 AT91_PERIPH_A AT91_PINCTRL_NONE>;
<AT91_PIOA 11 AT91_PERIPH_A AT91_PINCTRL_NONE>,
<AT91_PIOA 12 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>;
};
pinctrl_usart1_rts: usart1_rts-0 {
@@ -743,8 +743,8 @@
usart2 {
pinctrl_usart2: usart2-0 {
atmel,pins =
<AT91_PIOA 13 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>,
<AT91_PIOA 14 AT91_PERIPH_A AT91_PINCTRL_NONE>;
<AT91_PIOA 13 AT91_PERIPH_A AT91_PINCTRL_NONE>,
<AT91_PIOA 14 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>;
};
pinctrl_usart2_rts: usart2_rts-0 {
@@ -766,8 +766,8 @@
usart3 {
pinctrl_usart3: usart3-0 {
atmel,pins =
<AT91_PIOB 0 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>,
<AT91_PIOB 1 AT91_PERIPH_A AT91_PINCTRL_NONE>;
<AT91_PIOB 0 AT91_PERIPH_A AT91_PINCTRL_NONE>,
<AT91_PIOB 1 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>;
};
pinctrl_usart3_rts: usart3_rts-0 {