netdev - Re: [PATCH 2/5] net: macb: mark device wake capable when "magic-packet" property present

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Date:   Thu, 16 Apr 2020 12:21:48 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     nicolas.ferre@...rochip.com, linux-arm-kernel@...ts.infradead.org,
        netdev@...r.kernel.org,
        Claudiu Beznea <claudiu.beznea@...rochip.com>,
        harini.katakam@...inx.com
Cc:     linux-kernel@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        pthombar@...ence.com, sergio.prado@...abworks.com,
        antoine.tenart@...tlin.com, linux@...linux.org.uk, andrew@...n.ch,
        michal.simek@...inx.com, Rafal Ozieblo <rafalo@...ence.com>
Subject: Re: [PATCH 2/5] net: macb: mark device wake capable when
 "magic-packet" property present



On 4/16/2020 10:44 AM, nicolas.ferre@...rochip.com wrote:
> From: Nicolas Ferre <nicolas.ferre@...rochip.com>
> 
> Change the way the "magic-packet" DT property is handled in the
> macb_probe() function, matching DT binding documentation.
> Now we mark the device as "wakeup capable" instead of calling the
> device_init_wakeup() function that would enable the wakeup source.
> 
> For Ethernet WoL, enabling the wakeup_source is done by
> using ethtool and associated macb_set_wol() function that
> already calls device_set_wakeup_enable() for this purpose.
> 
> That would reduce power consumption by cutting more clocks if
> "magic-packet" property is set but WoL is not configured by ethtool.
> 
> Fixes: 3e2a5e153906 ("net: macb: add wake-on-lan support via magic packet")
> Cc: Claudiu Beznea <claudiu.beznea@...rochip.com>
> Cc: Harini Katakam <harini.katakam@...inx.com>
> Cc: Rafal Ozieblo <rafalo@...ence.com>
> Cc: Sergio Prado <sergio.prado@...abworks.com>
> Signed-off-by: Nicolas Ferre <nicolas.ferre@...rochip.com>

Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
-- 
Florian