linux-kernel - Re: [PATCH v4 11/14] net: phy: adin: implement Energy Detect Powerdown mode

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Message-ID: <f5d3dc7e4e919427e82ccb637bd757393296047a.camel@analog.com>
Date:   Fri, 16 Aug 2019 06:09:49 +0000
From:   "Ardelean, Alexandru" <alexandru.Ardelean@...log.com>
To:     "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "f.fainelli@...il.com" <f.fainelli@...il.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     "andrew@...n.ch" <andrew@...n.ch>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "hkallweit1@...il.com" <hkallweit1@...il.com>
Subject: Re: [PATCH v4 11/14] net: phy: adin: implement Energy Detect
 Powerdown mode

On Wed, 2019-08-14 at 10:57 -0700, Florian Fainelli wrote:
> [External]
> 
> 
> 
> On 8/12/2019 4:23 AM, Alexandru Ardelean wrote:
> > The ADIN PHYs support Energy Detect Powerdown mode, which puts the PHY into
> > a low power mode when there is no signal on the wire (typically cable
> > unplugged).
> > This behavior is enabled by default, but can be disabled via device
> > property.
> 
> We could consider adding a PHY tunable, having this as a Device Tree
> property amounts to putting a policy inside DT, which is frowned upon.

That would be interesting actually, and I would also prefer it over static DT.
Maybe for this patch, I'll just enable EDPD by default and see about a tuna option.

> 
> > Signed-off-by: Alexandru Ardelean <alexandru.ardelean@...log.com>
> 
> Other than that, the code looks fine:
> 
> Reviewed-by: Florian Fainelli <f.fainelli@...il.com>