Messages in this thread Patch in this message | | | From | Peter Rosin <> | Subject | [PATCH 2/3] ARM: dts: at91rm9200: pullup rx on uart0 | Date | Wed, 21 Mar 2018 16:35:51 +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/at91rm9200.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/at91rm9200.dtsi b/arch/arm/boot/dts/at91rm9200.dtsi index 3f3149c156a8..2ad69a7fbc00 100644 --- a/arch/arm/boot/dts/at91rm9200.dtsi +++ b/arch/arm/boot/dts/at91rm9200.dtsi @@ -493,8 +493,8 @@ uart0 { pinctrl_uart0: uart0-0 { atmel,pins = - <AT91_PIOA 17 AT91_PERIPH_A AT91_PINCTRL_NONE /* PA17 periph A */ - AT91_PIOA 18 AT91_PERIPH_A AT91_PINCTRL_NONE>; /* PA18 periph A */ + <AT91_PIOA 17 AT91_PERIPH_A AT91_PINCTRL_NONE + AT91_PIOA 18 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>; }; pinctrl_uart0_cts: uart0_cts-0 { -- 2.11.0
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