linux-kernel - Re: net: stmmac: dwmac-rk: fixes for Wake-on-Lan on RK3288

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Message-Id: <20160610.181646.1722421370385177808.davem@davemloft.net>
Date:	Fri, 10 Jun 2016 18:16:46 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	vpalatin@...omium.org
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	andrew@...n.ch, dianders@...omium.org, peppe.cavallaro@...com,
	heiko@...ech.de, zhengsq@...k-chips.com
Subject: Re: net: stmmac: dwmac-rk: fixes for Wake-on-Lan on RK3288

From: Vincent Palatin <vpalatin@...omium.org>
Date: Fri, 10 Jun 2016 18:00:36 -0700

> In order to support Wake-On-Lan when using the RK3288 integrated MAC
> (with an external RGMII PHY), we need to avoid shutting down the regulator
> of the external PHY when the MAC is suspended as it's currently done in the MAC 
> platform code.
> As a first step, create independant callbacks for suspend/resume rather than
> re-using exit/init callbacks. So the dwmac platform driver can behave differently
> on suspend where it might skip shutting the PHY and at module unloading.
> Then update the dwmac-rk driver to switch off the PHY regulator only if we are
> not planning to wake up from the LAN.
> Finally add the PMT interrupt to the MAC device tree configuration, so we can
> wake up the core from it when the PHY has received the magic packet.
> 

Ignore my previous email, but in the future please tag these postings
properly with "[PATCH 0/N] " at the beginning of the subject line.

Thanks.