MCP23017 interrupt line (routed on PG12) requires to be pulled-up. Signed-off-by: Amelie Delaunay <amelie.delaunay@xxxxxxxxxxx> --- arch/arm/boot/dts/stm32mp13-pinctrl.dtsi | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm/boot/dts/stm32mp13-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp13-pinctrl.dtsi index 50daf5509193..9889f9fe99a6 100644 --- a/arch/arm/boot/dts/stm32mp13-pinctrl.dtsi +++ b/arch/arm/boot/dts/stm32mp13-pinctrl.dtsi @@ -47,6 +47,13 @@ pins { }; }; + mcp23017_pins_a: mcp23017-0 { + pins { + pinmux = <STM32_PINMUX('G', 12, GPIO)>; + bias-pull-up; + }; + }; + sdmmc1_b4_pins_a: sdmmc1-b4-0 { pins { pinmux = <STM32_PINMUX('C', 8, AF12)>, /* SDMMC1_D0 */ -- 2.25.1