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/at91sam9x5_usart3.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/at91sam9x5_usart3.dtsi')
| -rw-r--r-- | arch/arm/boot/dts/at91sam9x5_usart3.dtsi | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/boot/dts/at91sam9x5_usart3.dtsi b/arch/arm/boot/dts/at91sam9x5_usart3.dtsi index 43bb5b51caa6..a32d12b406a3 100644 --- a/arch/arm/boot/dts/at91sam9x5_usart3.dtsi +++ b/arch/arm/boot/dts/at91sam9x5_usart3.dtsi @@ -21,8 +21,8 @@ usart3 { pinctrl_usart3: usart3-0 { atmel,pins = - <AT91_PIOC 22 AT91_PERIPH_B AT91_PINCTRL_PULL_UP /* PC22 periph B with pullup */ - AT91_PIOC 23 AT91_PERIPH_B AT91_PINCTRL_NONE>; /* PC23 periph B */ + <AT91_PIOC 22 AT91_PERIPH_B AT91_PINCTRL_NONE + AT91_PIOC 23 AT91_PERIPH_B AT91_PINCTRL_PULL_UP>; }; pinctrl_usart3_rts: usart3_rts-0 { |