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Message-ID: <7117531f-a9f2-63eb-f69d-23267e5745d0@arinc9.com>
Date:   Sat, 3 Jun 2023 15:15:52 +0300
From:   Arınç ÜNAL <arinc.unal@...nc9.com>
To:     Vladimir Oltean <olteanv@...il.com>
Cc:     Sean Wang <sean.wang@...iatek.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        DENG Qingfang <dqfext@...il.com>,
        Daniel Golle <daniel@...rotopia.org>,
        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>,
        Richard van Schagen <richard@...terhints.com>,
        Richard van Schagen <vschagen@...com>,
        Frank Wunderlich <frank-w@...lic-files.de>,
        Bartel Eerdekens <bartel.eerdekens@...stell8.be>,
        erkin.bozoglu@...ont.com, mithat.guner@...ont.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH net-next 08/30] net: dsa: mt7530: change p{5,6}_interface
 to p{5,6}_configured

On 26.05.2023 16:01, Vladimir Oltean wrote:
> On Thu, May 25, 2023 at 09:49:58AM +0300, Arınç ÜNAL wrote:
>> On 24.05.2023 20:51, Vladimir Oltean wrote:
>>> On Mon, May 22, 2023 at 03:15:10PM +0300, arinc9.unal@...il.com wrote:
>>>> diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
>>>> index 710c6622d648..d837aa20968c 100644
>>>> --- a/drivers/net/dsa/mt7530.c
>>>> +++ b/drivers/net/dsa/mt7530.c
>>>> @@ -2728,25 +2722,20 @@ mt753x_phylink_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
>>>>    			goto unsupported;
>>>>    		break;
>>>>    	case 5: /* Port 5, can be used as a CPU port. */
>>>> -		if (priv->p5_interface == state->interface)
>>>> +		if (priv->p5_configured)
>>>>    			break;
>>>>    		if (mt753x_mac_config(ds, port, mode, state) < 0)
>>>>    			goto unsupported;
>>>> -
>>>> -		if (priv->p5_intf_sel != P5_DISABLED)
>>>> -			priv->p5_interface = state->interface;
>>>
>>> If you don't replace this bit with anything, who will set priv->p5_configured
>>> for mt7530?
>>
>> I intend priv->p5_configured and priv->p6_configured to be only used for
>> MT7531 as I have stated on the mt7530_priv description.
> 
> Ok, but given the premise of this patch set, that phylink is always available,
> does it make sense for mt7531_cpu_port_config() and mt7988_cpu_port_config()
> to manually call phylink methods?

All I know is that that's how the implementation of phylink's PCS 
support in this driver works. It expects the MAC to be set up before 
calling mt753x_phylink_pcs_link_up() and mt753x_phylink_mac_link_up().

Arınç

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