[RFC PATCH net-next 05/12] reset: lan966x: Add switch reset driver

[Andrew Lunn]

On Mon, Sep 20, 2021 at 11:52:11AM +0200, Horatiu Vultur wrote:
> The lan966x switch SoC has a number of components that can be reset
> indiviually, but at least the switch core needs to be in a well defined
> state at power on, when any of the lan966x drivers starts to access the
> switch core, this reset driver is available.
> 
> The reset driver is loaded early via the postcore_initcall interface, and
> will then be available for the other lan966x drivers (SGPIO, SwitchDev etc)
> that are loaded next, and the first of them to be loaded can perform the
> one-time switch core reset that is needed.

A lot of this looks very similar to
reset-microchip-sparx5.c. PROTECT_REG is 0x88 rather than 0x84, but
actually using the value is the same. SOFT_RESET_REG is identical.  So
rather than adding a new driver, maybe you can generalize
reset-microchip-sparx5.c, and add a second compatible string?

	Andrew