Re: [RFC PATCH 1/5] net: dsa: mv88e6xxx: introduce support for two chips using direct smi addressing

[Vivien Didelot <vivien.didelot@gmail.com>]

Hi Rasmus,

On Wed, 8 May 2019 13:47:15 +0200, Andrew Lunn <andrew@lunn.ch> wrote:
> > > 
> > > This works, but i think i prefer adding mv88e6xxx_smi_dual_chip_write,
> > > mv88e6xxx_smi_dual_chip_read, and create a
> > > mv88e6xxx_smi_single_chip_ops.
> > 
> > Now that Vivien's "net: dsa: mv88e6xxx: refine SMI support" is in
> > master, do you still prefer introducing a third bus_ops structure
> > (mv88e6xxx_smi_dual_direct_ops ?), or would the approach of adding
> > chip->sw_addr in the smi_direct_{read/write} functions be ok (which
> > would then require changing the indirect callers to pass 0 instead of
> > chip->swaddr).
> 
> I would still prefer a new bus_ops.

Even though those are direct read and write operations, having 3
mv88e6xxx_bus_ops structures will make it clear that there are 3 ways
for accessible the internal switch registers through SMI, depending
on the Marvell chip model.  So I would prefer a third ops as well.

Thanks,
Vivien