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net: phy: smsc: LAN8710/20: add PHY_RST_AFTER_CLK_EN flag

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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 <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Richard Leitner authored and David S. Miller committed 2017-12-13 11:22:54 -05:00
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commit 7f64e5b18e
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+1 -1
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drivers/net/phy/smsc.c
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@@ -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,