Messages in this thread Patch in this message | | | From | Peter Rosin <> | Subject | [PATCH 3/3] ARM: dts: at91sam9260: pullup rx on usart0 | Date | Wed, 21 Mar 2018 16:35:52 +0100 |
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For consistency with all other serial pins, add this pullup. It also prevents the signal from 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> --- arch/arm/boot/dts/at91sam9260.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/at91sam9260.dtsi b/arch/arm/boot/dts/at91sam9260.dtsi index 3ae7e6c55fe4..9118e29b6d6a 100644 --- a/arch/arm/boot/dts/at91sam9260.dtsi +++ b/arch/arm/boot/dts/at91sam9260.dtsi @@ -434,8 +434,8 @@ usart0 { pinctrl_usart0: usart0-0 { atmel,pins = - <AT91_PIOB 4 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB4 periph A */ - AT91_PIOB 5 AT91_PERIPH_A AT91_PINCTRL_NONE>; /* PB5 periph A */ + <AT91_PIOB 4 AT91_PERIPH_A AT91_PINCTRL_NONE + AT91_PIOB 5 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>; }; pinctrl_usart0_rts: usart0_rts-0 { -- 2.11.0
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