Re: [PATCH net-next 1/1] net: phy: marvell10g: Add WAKE_PHY support to WOL event

From: Andrew Lunn
Date: Mon Aug 16 2021 - 00:10:58 EST


On Mon, Aug 16, 2021 at 03:19:34AM +0000, Song, Yoong Siang wrote:
> > > How does this work if the driver has no interrupt support? What is the
> > > hardware setup this has been tested with?
> >
> > Hi Russell
> >
> > We already know from previous patches that the Intel hardware is broken,
> > and does not actually deliver the interrupt which caused the wake up. So i
> > assume this just continues on with the same broken hardware, but they have
> > a different PHY connected.
>
> Hi Russell & Andrew,
>
> This is tested on Intel Elkhart Lake (EHL) board. We are using polling mode.
> Both WoL interrupt and link change interrupt are the same pin which is
> routed to PMC. PMC will wake up the system when there is WoL event.

Is the PMC also an interrupt controller?

Andrew