linux-kernel - Re: DSA support for Micrel KSZ8895

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Message-ID: <20170823124207.GB28612@lunn.ch>
Date:   Wed, 23 Aug 2017 14:42:07 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Pavel Machek <pavel@....cz>
Cc:     Woojung.Huh@...rochip.com, nathan.leigh.conrad@...il.com,
        vivien.didelot@...oirfairelinux.com, f.fainelli@...il.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Tristram.Ha@...rel.com
Subject: Re: DSA support for Micrel KSZ8895

> Any ideas how to do the work in a way to minimize code duplication are
> welcome...

A lot depends on how much duplication there is. mv88e6xxx uses a set
of function points per chip variant. Another option is to put the
common code into a library, and have two drivers. Or if it is the same
registers, but at different locations, you can add a translation
function, which is what i think the b53 driver does.

	  Andrew