linux-kernel - Re: [PATCH v2 3/3] ARM: orion5x: Add D-Link DNS-323 based on Device Tree

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Message-ID: <Yy2iqE8XgXe8qYd9@lunn.ch>
Date:   Fri, 23 Sep 2022 14:12:24 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     maukka@....kapsi.fi
Cc:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        arnd@...db.de, olof@...om.net, sebastian.hesselbarth@...il.com,
        gregory.clement@...tlin.com, linux@...linux.org.uk,
        pali@...nel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 3/3] ARM: orion5x: Add D-Link DNS-323 based on Device
 Tree

> > > +	if (of_machine_is_compatible("dlink,dns323a1")) {
> > > +		writel(0, MPP_DEV_CTRL);		/* DEV_D[31:16] */
> > 
> > I spotted this in dns323-setup.c as well. Do you have any idea what it
> > does?
> > 
> 
> No idea. I have tried to replicate what was in dns323-setup.c as exactly as
> possible.
> I can try to leave it out and see if anything changes.

It is best to keep what we don't understand. It will be there for a
reason.

	Andrew