On 28/11/2022 13:24, Binbin Zhou wrote: > >>> + >>> + reg: >>> + maxItems: 1 >>> + >> No clocks? I2C controller without clocks? Are you sure the binding is >> complete? > > We previously set the default CLOCK in the driver. Of course, we also > provide the path to read the clock-frequency field for redo. In any > case, I will add the clock-frequency field to the V4 patchset. I am not thinking here about the driver. What your bindings said, is that device does not have any clocks and I have doubts about it... I also do not say anything about clock-frequency because it is already there via i2c-controller.yaml. Best regards, Krzysztof