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/sama5d3_uart.dtsi | |
| parent | ARM: dts: at91: at91sam9g25: fix mux-mask pinctrl property (diff) | |
| download | linux-5e04822f7db504cd2cdc9074bc79c84657222567.tar.xz linux-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/sama5d3_uart.dtsi')
| -rw-r--r-- | arch/arm/boot/dts/sama5d3_uart.dtsi | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/arm/boot/dts/sama5d3_uart.dtsi b/arch/arm/boot/dts/sama5d3_uart.dtsi index 186377d41c91..f599f8a5f664 100644 --- a/arch/arm/boot/dts/sama5d3_uart.dtsi +++ b/arch/arm/boot/dts/sama5d3_uart.dtsi @@ -23,16 +23,16 @@ uart0 { pinctrl_uart0: uart0-0 { atmel,pins = - <AT91_PIOC 29 AT91_PERIPH_A AT91_PINCTRL_NONE /* PC29 periph A, conflicts with PWMFI2, ISI_D8 */ - AT91_PIOC 30 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>; /* PC30 periph A with pullup, conflicts with ISI_PCK */ + <AT91_PIOC 29 AT91_PERIPH_A AT91_PINCTRL_PULL_UP /* conflicts with PWMFI2, ISI_D8 */ + AT91_PIOC 30 AT91_PERIPH_A AT91_PINCTRL_NONE>; /* conflicts with ISI_PCK */ }; }; uart1 { pinctrl_uart1: uart1-0 { atmel,pins = - <AT91_PIOA 30 AT91_PERIPH_B AT91_PINCTRL_NONE /* PA30 periph B, conflicts with TWD0, ISI_VSYNC */ - AT91_PIOA 31 AT91_PERIPH_B AT91_PINCTRL_PULL_UP>; /* PA31 periph B with pullup, conflicts with TWCK0, ISI_HSYNC */ + <AT91_PIOA 30 AT91_PERIPH_B AT91_PINCTRL_PULL_UP /* conflicts with TWD0, ISI_VSYNC */ + AT91_PIOA 31 AT91_PERIPH_B AT91_PINCTRL_NONE>; /* conflicts with TWCK0, ISI_HSYNC */ }; }; }; |