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Date: Thu, 27 Feb 2020 17:10:10 +0100 From: Antoine Tenart <antoine.tenart@...tlin.com> To: Andrew Lunn <andrew@...n.ch> Cc: Antoine Tenart <antoine.tenart@...tlin.com>, davem@...emloft.net, f.fainelli@...il.com, hkallweit1@...il.com, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH net-next 0/2] net: phy: mscc: support LOS active low Hello Andrew, On Thu, Feb 27, 2020 at 04:54:40PM +0100, Andrew Lunn wrote: > On Thu, Feb 27, 2020 at 04:40:31PM +0100, Antoine Tenart wrote: > > > > This series adds a device tree property for the VSC8584 PHY family to > > describe the LOS pin connected to the PHY as being active low. This new > > property is then used in the MSCC PHY driver. > > I think i'm missing the big picture. > > Is this for when an SFP is connected directly to the PHY? The SFP > output LOS, indicating loss of received fibre/copper signal, is active > low? Yes, the SFP cage can be connected directly to the PHY, and the SFP LOS signal is active low (there's a pull-up on the LOS line). Also, I realized I send this series before my other patches adding support for fibre mode on this PHY, so it may make more sense to send this one after. Thanks! Antoine -- Antoine Ténart, Bootlin Embedded Linux and Kernel engineering https://bootlin.com
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