The I2C bus violates the timing specifications when run in fast mode on the uDPU, so switch to 100kHz mode. Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxx> --- arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts b/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts index e31813a4f972..2ac1d9ae1e25 100644 --- a/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts +++ b/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts @@ -119,12 +119,14 @@ status = "okay"; pinctrl-names = "default"; pinctrl-0 = <&i2c1_pins>; + /delete-property/mrvl,i2c-fast-mode; }; &i2c1 { status = "okay"; pinctrl-names = "default"; pinctrl-0 = <&i2c2_pins>; + /delete-property/mrvl,i2c-fast-mode; lm75@48 { status = "okay"; -- 2.20.1