The I2C2 has SMBus device SMSC USB2514Bi connected to it, the device is capable of up to 100 kHz operation. Reduce the bus frequency to 100 kHz to guarantee this I2C device can work correctly.
Signed-off-by: Marek Vasut marex@denx.de Cc: Fabio Estevam festevam@denx.de Cc: Peng Fan peng.fan@nxp.com Cc: Stefano Babic sbabic@denx.de --- arch/arm/dts/imx8mm-data-modul-edm-sbc.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/dts/imx8mm-data-modul-edm-sbc.dts b/arch/arm/dts/imx8mm-data-modul-edm-sbc.dts index 154116d01c9..5b022040902 100644 --- a/arch/arm/dts/imx8mm-data-modul-edm-sbc.dts +++ b/arch/arm/dts/imx8mm-data-modul-edm-sbc.dts @@ -392,7 +392,7 @@
&i2c2 { /* IMX8MM ERRATA e7805 -- I2C is limited to 384 kHz due to SoC bug */ - clock-frequency = <320000>; + clock-frequency = <100000>; pinctrl-names = "default", "gpio"; pinctrl-0 = <&pinctrl_i2c2>; pinctrl-1 = <&pinctrl_i2c2_gpio>;