Messages in this thread Patch in this message | | | From | <> | Subject | Re: [PATCH] ARM: dts: at91: sama7g5ek: enable pull-up on flexcom3 console lines | Date | Tue, 8 Mar 2022 08:21:23 +0000 |
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On 3/7/22 13:38, Eugen Hristev wrote: > Flexcom3 is used as board console serial. There are no pull-ups on these > lines on the board. This means that if a cable is not connected (that has > pull-ups included), stray characters could appear on the console as the > floating pins voltage levels are interpreted as incoming characters. > To avoid this problem, enable the internal pull-ups on these lines. > > Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
> --- > arch/arm/boot/dts/at91-sama7g5ek.dts | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm/boot/dts/at91-sama7g5ek.dts b/arch/arm/boot/dts/at91-sama7g5ek.dts > index 08685a10eda1d..dd047a8523907 100644 > --- a/arch/arm/boot/dts/at91-sama7g5ek.dts > +++ b/arch/arm/boot/dts/at91-sama7g5ek.dts > @@ -495,7 +495,7 @@ pinctrl_flx0_default: flx0_default { > pinctrl_flx3_default: flx3_default { > pinmux = <PIN_PD16__FLEXCOM3_IO0>, > <PIN_PD17__FLEXCOM3_IO1>; > - bias-disable; > + bias-pull-up; > }; > > pinctrl_flx4_default: flx4_default {
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