Re: [PATCH v2 1/5] phy: Add a driver for simple phy

From: Arnd Bergmann
Date: Sat Apr 16 2016 - 15:50:49 EST


On Thursday 14 April 2016 11:22:58 Kishon Vijay Abraham I wrote:
>
> IMO simple-phy driver should be an independent driver and shouldn't export
> symbols. The dt binding for the simple phy device should be something like
> below where all the properties of the simple phy device should be in the
> binding documentation.
> usbphy {
> compatible = "simple-phy";
> phy-supply = <&supply>;
> clocks = <&clock>;
> reset = <&reset>;
> };
>
> Anything that needs more than this shouldn't be a simple phy.

I think there are two aspects here:

a) I agree that a driver that matches "simple-phy" should only call
the generic functions and not use any other properties.

b) Independent of that, I think that it makes a lot of sense to export
those functions from the generic PHY subsystems so they can be
called from drivers that are a little less generic, or that already
have an established binding but need no other code.

Arnd