Re: [PATCH] net/phy/vitesse: Configure RGMII skew on VSC8601, if needed

From: Alex
Date: Mon Nov 14 2016 - 17:09:40 EST




On 11/14/2016 01:25 PM, Florian Fainelli wrote:
On 11/14/2016 01:18 PM, David Miller wrote:
From: Alexandru Gagniuc <alex.g@xxxxxxxxxxxx>
Date: Sat, 12 Nov 2016 15:32:13 -0800

+ if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
+ ret = vsc8601_add_skew(phydev);

I think you should use phy_interface_is_rgmii() here.


This would include all RGMII modes, here I think the intent is to check
for PHY_INTERFACE_MODE_RGMII_ID and PHY_INTERFACE_MODE_RGMII_TXID (or
RXID),

That is correct.

Alexandru, what direction does the skew settings apply to?

It applies a skew in both TX and RX directions.

Alex