Re: I2C filtering (was Re: [PATCH v2 6/9] dt-bindings: i2c: at91: add binding for enable-ana-filt)

[Wolfram Sang]

> > Apart from enabling the filter there is indeed one configuration
> > setting, the maximum pulse width of spikes to be suppressed by the input
> > filter.

Yup, this is what I anticipated.

> This is a number 0 to 7 (3 bits) that represents the width of the spike 
> in periph clock cycles.

For a generic binding, we would need some time-value as a parameter and
convert it to clock cycles in the driver then, I'd think.

> I am looking to see what is PADFCFG , as it's related to the PAD analog 
> filter configuration. It may be unused by the filter.

Thanks!

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