[PATCH v4 04/10] i2c: meson: use i2c core for DT clock-frequency parsing

[Wolfram Sang]

> +- i2c-scl-falling-time-ns
> +  Number of nanoseconds the SCL signal takes to fall; t(f) in the I2C
> +  specification.
> +
> +- i2c-scl-internal-delay-ns
> +  Number of nanoseconds the IP core additionally needs to setup SCL.
> +
> +- i2c-scl-rising-time-ns
> +  Number of nanoseconds the SCL signal takes to rise; t(r) in the I2C
> +  specification.
> +
> +- i2c-sda-falling-time-ns
> +  Number of nanoseconds the SDA signal takes to fall; t(f) in the I2C
> +  specification.

Those are not used currently. Can the driver be updated to make use of
them? Otherwise, we might just skip this section.

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