diff options
| author | Peter Rosin <peda@axentia.se> | 2018-03-21 18:35:50 +0300 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2018-03-21 23:46:59 +0300 |
| commit | 5e04822f7db504cd2cdc9074bc79c84657222567 (patch) | |
| tree | 3675e87591cdca02b358ca0876552a4b691a69ed /arch/arm/boot/dts/at91sam9n12.dtsi | |
| parent | e8fd0adf105e132fd84545997bbef3d5edc2c9c1 (diff) | |
| download | linux-5e04822f7db504cd2cdc9074bc79c84657222567.tar.xz | |
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>
Diffstat (limited to 'arch/arm/boot/dts/at91sam9n12.dtsi')
| -rw-r--r-- | arch/arm/boot/dts/at91sam9n12.dtsi | 4 |
1 files changed, 2 insertions, 2 deletions
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>; }; }; |