From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from vps0.lunn.ch (vps0.lunn.ch [156.67.10.101])
	(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
	(No client certificate requested)
	by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1D1CF20E4;
	Sun, 17 Dec 2023 09:23:08 +0000 (UTC)
Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lunn.ch
Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lunn.ch
Authentication-Results: smtp.subspace.kernel.org;
	dkim=pass (1024-bit key) header.d=lunn.ch header.i=@lunn.ch header.b="6Hz6PNrm"
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch;
	s=20171124; h=In-Reply-To:Content-Disposition:Content-Type:MIME-Version:
	References:Message-ID:Subject:Cc:To:From:Date:From:Sender:Reply-To:Subject:
	Date:Message-ID:To:Cc:MIME-Version:Content-Type:Content-Transfer-Encoding:
	Content-ID:Content-Description:Content-Disposition:In-Reply-To:References;
	bh=e2syS5gfOYyTr1CcR6QHmRC/0bl7RHoQ4/8xLhREdX8=; b=6Hz6PNrmyyEJISORozhhdBYTY3
	oCYrHfTrHC5dCh/2oN7MYLlvb4ZNm+Xm+PqdtDqnmj6Nk5iIbgQoGR8P++3zL1823xf/tcyCROb/z
	1N+DZzTwvBTiRilx6pjfrflCX0og/+Qudc4vSg1cAgb31CPpqLOw9sRDOgRkyEr2F+/E=;
Received: from andrew by vps0.lunn.ch with local (Exim 4.94.2)
	(envelope-from <andrew@lunn.ch>)
	id 1rEnMM-00399Q-7F; Sun, 17 Dec 2023 10:22:54 +0100
Date: Sun, 17 Dec 2023 10:22:54 +0100
From: Andrew Lunn <andrew@lunn.ch>
To: Dimitri Fedrau <dima.fedrau@gmail.com>
Cc: Heiner Kallweit <hkallweit1@gmail.com>,
	Russell King <linux@armlinux.org.uk>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Stefan Eichenberger <eichest@gmail.com>, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] net: phy: marvell-88q2xxx: add driver for the Marvell
 88Q2220 PHY
Message-ID: <28cc73bf-ed6d-49d8-b80b-4fbf5fa0442f@lunn.ch>
References: <20231215213102.35994-1-dima.fedrau@gmail.com>
 <74d4b8f9-700e-45bc-af59-95a40a777b00@lunn.ch>
 <20231216221151.GA143483@debian>
Precedence: bulk
X-Mailing-List: linux-kernel@vger.kernel.org
List-Id: <linux-kernel.vger.kernel.org>
List-Subscribe: <mailto:linux-kernel+subscribe@vger.kernel.org>
List-Unsubscribe: <mailto:linux-kernel+unsubscribe@vger.kernel.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20231216221151.GA143483@debian>

> > > +	/* Set IEEE power down */
> > > +	ret = phy_write_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL1, 0x840);
> > 
> > 0x800 is MDIO_CTRL1_LPOWER. What is the other? It seems like a speed
> > selection bit?
> >
> The other is MDIO_PMA_CTRL1_SPEED1000. Will fix this in V2.

It seems odd to set a speed, and power it down. But i guess you have
blindly copied the reference code, so have no idea why?

	Andrew