On Tue, Nov 14, 2023 at 11:55:56AM +0100, Romain Gantois wrote:
> The IPQESS integrated Ethernet switch found in the IPQ4019 SoC requires
> calibration of the PHY link when its ports are brought up. This calibration
> procedure requires knowledge of precise timings and vendor-specific
> registers on both the PHY and MAC side.
>
> The existing PHY abstraction layer does not allow coordinating this kind of
> calibration operation between MAC drivers and PHY drivers. As a
> consequence, PHY-specific calibration information has to be included in
> Ethernet drivers, since it has to schedule the entire calibration procedure
> on it's own.
>
> Add two callbacks that extend the PHY abstraction layer to allow MAC
> drivers to start and stop PHY calibration runs in a PHY-model-independent
> manner.
When adding new APIs, you need to add an example of both sides of
it. We can then decide if the API makes sense. I don't see a PHY
driver implementing this API.
Andrew
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pw-bot: cr
