netdev - Re: [PATCH net-next 03/15] net: dsa: mt7530: store port 5 SGMII capability of MT7531

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Date: Sun, 19 Nov 2023 16:50:19 +0200
From: Vladimir Oltean <olteanv@...il.com>
To: Arınç ÜNAL <arinc.unal@...nc9.com>
Cc: Daniel Golle <daniel@...rotopia.org>,
	Landen Chao <Landen.Chao@...iatek.com>,
	DENG Qingfang <dqfext@...il.com>,
	Sean Wang <sean.wang@...iatek.com>, Andrew Lunn <andrew@...n.ch>,
	Florian Fainelli <f.fainelli@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Russell King <linux@...linux.org.uk>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	Frank Wunderlich <frank-w@...lic-files.de>,
	Bartel Eerdekens <bartel.eerdekens@...stell8.be>,
	mithat.guner@...ont.com, erkin.bozoglu@...ont.com
Subject: Re: [PATCH net-next 03/15] net: dsa: mt7530: store port 5 SGMII
 capability of MT7531

On Sat, Nov 18, 2023 at 03:31:53PM +0300, Arınç ÜNAL wrote:
> Introduce the p5_sgmii field to store the information for whether port 5
> has got SGMII or not. Instead of reading the MT7531_TOP_SIG_SR register
> multiple times, the register will be read once and the value will be
> stored on the p5_sgmii field. This saves unnecessary reads of the
> register.
> 
> Move the comment about MT7531AE and MT7531BE to mt7531_setup(), where the
> switch is identified.
> 
> Get rid of mt7531_dual_sgmii_supported() now that priv->p5_sgmii stores the
> information. Address the code where mt7531_dual_sgmii_supported() is used.
> 
> Get rid of mt7531_is_rgmii_port() which just prints the opposite of
> priv->p5_sgmii.
> 
> Instead of calling mt7531_pll_setup() then returning, do not call it if
> port 5 is SGMII.
> 
> Remove P5_INTF_SEL_GMAC5_SGMII. The p5_interface_select enum is supposed to
> represent the mode that port 5 is being used in, not the hardware
> information of port 5. Set p5_intf_sel to P5_INTF_SEL_GMAC5 instead, if
> port 5 is not dsa_is_unused_port().
> 
> Signed-off-by: Arınç ÜNAL <arinc.unal@...nc9.com>
> Acked-by: Daniel Golle <daniel@...rotopia.org>
> ---

Reviewed-by: Vladimir Oltean <olteanv@...il.com>