linux-kernel - Re: [PATCH net-next v2] net: phy: bcm7xxx: request and manage GPHY clock

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Message-ID: <20200918014612.GA3613618@lunn.ch>
Date:   Fri, 18 Sep 2020 03:46:12 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     netdev@...r.kernel.org, opendmb@...il.com,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        "open list:BROADCOM ETHERNET PHY DRIVERS" 
        <bcm-kernel-feedback-list@...adcom.com>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net-next v2] net: phy: bcm7xxx: request and manage GPHY
 clock

On Wed, Sep 16, 2020 at 07:04:13PM -0700, Florian Fainelli wrote:
> The internal Gigabit PHY on Broadcom STB chips has a digital clock which
> drives its MDIO interface among other things, the driver now requests
> and manage that clock during .probe() and .remove() accordingly.
> 
> Because the PHY driver can be probed with the clocks turned off we need
> to apply the dummy BMSR workaround during the driver probe function to
> ensure subsequent MDIO read or write towards the PHY will succeed.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@...il.com>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew