netdev - Re: [PATCH V2 net 1/2] dt-bindings: net: ar803x: add disable-hibernation-mode propetry

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Date:   Wed, 17 Aug 2022 08:52:18 +0300
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     wei.fang@....com, andrew@...n.ch, hkallweit1@...il.com,
        linux@...linux.org.uk, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, f.fainelli@...il.com,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2 net 1/2] dt-bindings: net: ar803x: add
 disable-hibernation-mode propetry

On 17/08/2022 05:03, wei.fang@....com wrote:
> From: Wei Fang <wei.fang@....com>
> 
> The hibernation mode of Atheros AR803x PHYs defaults to be
> enabled after hardware reset. When the cable is unplugged,
> the PHY will enter hibernation mode after about 10 seconds
> and the PHY clocks will be stopped to save power.
> However, some MACs need the phy output clock for proper
> functioning of their logic. For instance, stmmac needs the
> RX_CLK of PHY for software reset to complete.
> Therefore, add a DT property to configure the PHY to disable
> this hardware hibernation mode.
> 
> Signed-off-by: Wei Fang <wei.fang@....com>
> ---
> V2 change:
> 1. Add subject prefix.
> 2. Modify the property name and description to make them
> clear.


Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>


Best regards,
Krzysztof