linux-kernel - Re: [PATCH] net: phy: at803x: add QCA8084 ethernet phy support

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Message-ID: <aef83003-6ddb-f09c-5a49-765273e71ceb@quicinc.com>
Date:   Sun, 5 Nov 2023 15:42:02 +0800
From:   Jie Luo <quic_luoj@...cinc.com>
To:     Andrew Lunn <andrew@...n.ch>
CC:     <hkallweit1@...il.com>, <linux@...linux.org.uk>,
        <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] net: phy: at803x: add QCA8084 ethernet phy support



On 11/4/2023 10:19 PM, Andrew Lunn wrote:
> On Sat, Nov 04, 2023 at 02:25:25PM +0800, Jie Luo wrote:
>>
>>
>> On 11/3/2023 9:01 PM, Andrew Lunn wrote:
>>>>    #define QCA8081_PHY_ID				0x004dd101
>>>> +#define QCA8081_PHY_MASK			0xffffff00
>>>
>>> That is an unusual mask. Please check it is correct. All you should
>>> need its PHY_ID_MATCH_EXACT, PHY_ID_MATCH_MODEL, PHY_ID_MATCH_VENDOR.
>>
>> Thanks Andrew for the review.
>> The PHY ID of qca8084 is correct, i will update to use PHY_ID_MATCH_EXACT in
>> the new added entry for qca8084.
> 
> Note, i asked about the mask, not the ID. Is PHY_ID_MATCH_EXACT maybe
> too exact? Is there the option for different revisions of the PHY? Can
> one entry in the table be used for multiple revisions?
> 
> 
>      Andrew
> 
> ---
> pw-bot: cr

Sure, Andrew, qca8084 is the different model chip from qca8081, and 
there is only one PHY ID used currently for the qca8084(4-port) and 
qca8082(2-port), but we can use PHY_ID_MATCH_MODEL for new added entry 
of qca8084 and qca8082.