The gpio5-pin9 is used as the interrupt pin of i2c external gpio chip, so set this pin as input by default. Signed-off-by: Meng Li <Meng.Li@xxxxxxxxxxxxx> --- arch/arm64/boot/dts/renesas/ulcb-kf.dtsi | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi b/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi index 202177706cde..8986a7e6e099 100644 --- a/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi +++ b/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi @@ -205,6 +205,15 @@ }; }; +&gpio5 { + gpio_exp_77_int { + gpio-hog; + gpios = <9 0>; + input; + line-name = "gpio-exp-77-int"; + }; +}; + &i2c4 { i2cswitch4: i2c-switch@71 { compatible = "nxp,pca9548"; -- 2.17.1