diff options
| author |   Peter Rosin <peda@axentia.se> | 2018-03-21 16:35:50 +0100 |
|---|---|---|
| committer |   Alexandre Belloni <alexandre.belloni@bootlin.com> | 2018-03-21 21:46:59 +0100 |
| commit | 5e04822f7db504cd2cdc9074bc79c84657222567 (patch) | |
| tree | 3675e87591cdca02b358ca0876552a4b691a69ed /arch/arm/boot/dts/at91rm9200.dtsi | |
| parent | ARM: dts: at91: at91sam9g25: fix mux-mask pinctrl property (diff) | |
| download | linux-dev-5e04822f7db504cd2cdc9074bc79c84657222567.tar.xz linux-dev-5e04822f7db504cd2cdc9074bc79c84657222567.zip | |
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/at91rm9200.dtsi')
| -rw-r--r-- | arch/arm/boot/dts/at91rm9200.dtsi | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/arm/boot/dts/at91rm9200.dtsi b/arch/arm/boot/dts/at91rm9200.dtsi index ba61893a02a0..3f3149c156a8 100644 --- a/arch/arm/boot/dts/at91rm9200.dtsi +++ b/arch/arm/boot/dts/at91rm9200.dtsi @@ -511,8 +511,8 @@ uart1 { pinctrl_uart1: uart1-0 { atmel,pins = - <AT91_PIOB 20 AT91_PERIPH_A AT91_PINCTRL_PULL_UP /* PB20 periph A with pullup */ - AT91_PIOB 21 AT91_PERIPH_A AT91_PINCTRL_NONE>; /* PB21 periph A */ + <AT91_PIOB 20 AT91_PERIPH_A AT91_PINCTRL_NONE + AT91_PIOB 21 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>; }; pinctrl_uart1_rts: uart1_rts-0 { @@ -545,8 +545,8 @@ uart2 { pinctrl_uart2: uart2-0 { atmel,pins = - <AT91_PIOA 22 AT91_PERIPH_A AT91_PINCTRL_NONE /* PA22 periph A */ - AT91_PIOA 23 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>; /* PA23 periph A with pullup */ + <AT91_PIOA 22 AT91_PERIPH_A AT91_PINCTRL_PULL_UP + AT91_PIOA 23 AT91_PERIPH_A AT91_PINCTRL_NONE>; }; pinctrl_uart2_rts: uart2_rts-0 { @@ -563,8 +563,8 @@ uart3 { pinctrl_uart3: uart3-0 { atmel,pins = - <AT91_PIOA 5 AT91_PERIPH_B AT91_PINCTRL_PULL_UP /* PA5 periph B with pullup */ - AT91_PIOA 6 AT91_PERIPH_B AT91_PINCTRL_NONE>; /* PA6 periph B */ + <AT91_PIOA 5 AT91_PERIPH_B AT91_PINCTRL_NONE + AT91_PIOA 6 AT91_PERIPH_B AT91_PINCTRL_PULL_UP>; }; pinctrl_uart3_rts: uart3_rts-0 { |