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Date:   Tue, 18 Aug 2020 08:23:47 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Landen Chao <landen.chao@...iatek.com>
Cc:     <andrew@...n.ch>, <f.fainelli@...il.com>,
        <vivien.didelot@...oirfairelinux.com>, <matthias.bgg@...il.com>,
        <robh+dt@...nel.org>, <mark.rutland@....com>,
        <devicetree@...r.kernel.org>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>, <davem@...emloft.net>,
        <sean.wang@...iatek.com>, <opensource@...rst.com>,
        <frank-w@...lic-files.de>, <dqfext@...il.com>
Subject: Re: [PATCH net-next v2 5/7] net: dsa: mt7530: Add the support of
 MT7531 switch

On Tue, 18 Aug 2020 15:14:10 +0800 Landen Chao wrote:
> Add new support for MT7531:
> 
> MT7531 is the next generation of MT7530. It is also a 7-ports switch with
> 5 giga embedded phys, 2 cpu ports, and the same MAC logic of MT7530. Cpu
> port 6 only supports SGMII interface. Cpu port 5 supports either RGMII
> or SGMII in different HW sku. Due to SGMII interface support, pll, and
> pad setting are different from MT7530. This patch adds different initial
> setting, and SGMII phylink handlers of MT7531.
> 
> MT7531 SGMII interface can be configured in following mode:
> - 'SGMII AN mode' with in-band negotiation capability
>     which is compatible with PHY_INTERFACE_MODE_SGMII.
> - 'SGMII force mode' without in-bnad negotiation
>     which is compatible with 10B/8B encoding of
>     PHY_INTERFACE_MODE_1000BASEX with fixed full-duplex and fixed pause.
> - 2.5 times faster clocked 'SGMII force mode' without in-bnad negotiation
>     which is compatible with 10B/8B encoding of
>     PHY_INTERFACE_MODE_2500BASEX with fixed full-duplex and fixed pause.
> 
> Signed-off-by: Landen Chao <landen.chao@...iatek.com>
> Signed-off-by: Sean Wang <sean.wang@...iatek.com>

Please fix these W=1 warnings:

../drivers/net/dsa/mt7530.c:1976:1: warning: no previous prototype for ‘mt7531_sgmii_link_up_force’ [-Wmissing-prototypes]
 1976 | mt7531_sgmii_link_up_force(struct dsa_switch *ds, int port,
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~
../drivers/net/dsa/mt7530.c:2081:6: warning: no previous prototype for ‘mt7531_sgmii_restart_an’ [-Wmissing-prototypes]
 2081 | void mt7531_sgmii_restart_an(struct dsa_switch *ds, int port)
      |      ^~~~~~~~~~~~~~~~~~~~~~~
../drivers/net/dsa/mt7530.c:1976:1: warning: symbol 'mt7531_sgmii_link_up_force' was not declared. Should it be static?
../drivers/net/dsa/mt7530.c:2081:6: warning: symbol 'mt7531_sgmii_restart_an' was not declared. Should it be static?

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