linux-kernel - Re: [PATCH 3/9] net: mdio: ipq4019: Enable GPIO reset for ipq5332 platform

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Message-ID: <dd2c3cfa-f7ee-4abb-9eff-2aac04fa914f@lunn.ch>
Date:   Thu, 16 Nov 2023 18:20:47 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Jie Luo <quic_luoj@...cinc.com>
Cc:     agross@...nel.org, andersson@...nel.org, konrad.dybcio@...aro.org,
        davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        hkallweit1@...il.com, linux@...linux.org.uk,
        robert.marko@...tura.hr, linux-arm-msm@...r.kernel.org,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, quic_srichara@...cinc.com
Subject: Re: [PATCH 3/9] net: mdio: ipq4019: Enable GPIO reset for ipq5332
 platform

> FYI, here is the sequence to bring up qca8084.
> a. enable clock output to qca8084.
> b. do gpio reset of qca8084.
> c. customize MDIO address and initialization configurations.
> d. the PHY ID can be acquired.

This all sounds like it is specific to the qca8084, so it should be in
the driver for the qca8084.

Its been pointed out you can get the driver to load by using the PHY
ID in the compatible. You want the SoC clock driver to export a CCF
clock, which the PHY driver can use. The PHY driver should also be
able to get the GPIO. So i think the PHY driver can do all this.

     Andrew