diff mbox series

[net-next,v4,3/4] net: phy: smsc: LAN8710/20: add PHY_RST_AFTER_CLK_EN flag

Message ID 20171207144358.3351-4-dev@g0hl1n.net
State Changes Requested, archived
Delegated to: David Miller
Headers show
Series net: fec: fix refclk enable for SMSC LAN8710/20 | expand

Commit Message

Richard Leitner Dec. 7, 2017, 2:43 p.m. UTC 
From: Richard Leitner <richard.leitner@skidata.com>

The Microchip/SMSC LAN8710/LAN8720 PHYs need (according to their
datasheet [1]) a continuous REF_CLK when configured to "REF_CLK In Mode".
Therefore set the PHY_RST_AFTER_CLK_EN flag for those PHYs to let the
ETH driver reset them after the REF_CLK is enabled.

[1] http://ww1.microchip.com/downloads/en/DeviceDoc/00002165B.pdf

Signed-off-by: Richard Leitner <richard.leitner@skidata.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
---
 drivers/net/phy/smsc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/phy/smsc.c b/drivers/net/phy/smsc.c
index a1961ba87e2b..be399d645224 100644
--- a/drivers/net/phy/smsc.c
+++ b/drivers/net/phy/smsc.c
@@ -312,7 +312,7 @@  static struct phy_driver smsc_phy_driver[] = {
 	.name		= "SMSC LAN8710/LAN8720",
 
 	.features	= PHY_BASIC_FEATURES,
-	.flags		= PHY_HAS_INTERRUPT,
+	.flags		= PHY_HAS_INTERRUPT | PHY_RST_AFTER_CLK_EN,
 
 	.probe		= smsc_phy_probe,