linux-kernel - Re: [PATCH net-next v1 3/3] net: phy: micrel: add coma mode GPIO

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Date:   Wed, 27 Apr 2022 15:12:07 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Michael Walle <michael@...le.cc>
Cc:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next v1 3/3] net: phy: micrel: add coma mode GPIO

On 4/27/22 15:08, Michael Walle wrote:
> Am 2022-04-28 00:06, schrieb Florian Fainelli:
>> On 4/27/2022 2:44 PM, Michael Walle wrote:
>>> The LAN8814 has a coma mode pin which puts the PHY into isolate and
>>> power-dowm mode. Unfortunately, the mode cannot be disabled by a
> s/dowm/down/
> 
>>> register. Usually, the input pin has a pull-up and connected to a GPIO
>>> which can then be used to disable the mode. Try to get the GPIO and
>>> deassert it.
>>
>> Poor choice of word, how about deep sleep, dormant, super isolate?
> 
> Which one do you mean? Super isolate sounded like broadcom wording ;)

Coma is not a great term to use IMHO. Yes Super isolate (tm) is a 
Broadcom thing, and you can come out of super isolate mode with register 
writes, so maybe not the best suggestion.
-- 
Florian