netdev - [PATCH v3 1/5] net: phy: smsc: skip ENERGYON interrupt if disabled

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Date:   Wed,  9 Sep 2020 15:44:57 +0200
From:   Marco Felsch <m.felsch@...gutronix.de>
To:     davem@...emloft.net, kuba@...nel.org, robh+dt@...nel.org,
        andrew@...n.ch, f.fainelli@...il.com, hkallweit1@...il.com,
        linux@...linux.org.uk, zhengdejin5@...il.com,
        richard.leitner@...data.com
Cc:     netdev@...r.kernel.org, kernel@...gutronix.de,
        devicetree@...r.kernel.org
Subject: [PATCH v3 1/5] net: phy: smsc: skip ENERGYON interrupt if disabled

Don't enable the interrupt if the platform disable the energy detection
by "smsc,disable-energy-detect".

Signed-off-by: Marco Felsch <m.felsch@...gutronix.de>
Reviewed-by: Andrew Lunn <andrew@...n.ch>
Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
---
v3:
- Add Florian's tag
- use 'if(phydev->interrupts == PHY_INTERRUPT_ENABLED)' instead of
  'if(phydev->interrupts)'

v2:
- Add Andrew's tag

 drivers/net/phy/smsc.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/net/phy/smsc.c b/drivers/net/phy/smsc.c
index 74568ae16125..16e66505575b 100644
--- a/drivers/net/phy/smsc.c
+++ b/drivers/net/phy/smsc.c
@@ -37,10 +37,17 @@ struct smsc_phy_priv {
 
 static int smsc_phy_config_intr(struct phy_device *phydev)
 {
-	int rc = phy_write (phydev, MII_LAN83C185_IM,
-			((PHY_INTERRUPT_ENABLED == phydev->interrupts)
-			? MII_LAN83C185_ISF_INT_PHYLIB_EVENTS
-			: 0));
+	struct smsc_phy_priv *priv = phydev->priv;
+	u16 intmask = 0;
+	int rc;
+
+	if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
+		intmask = MII_LAN83C185_ISF_INT4 | MII_LAN83C185_ISF_INT6;
+		if (priv->energy_enable)
+			intmask |= MII_LAN83C185_ISF_INT7;
+	}
+
+	rc = phy_write(phydev, MII_LAN83C185_IM, intmask);
 
 	return rc < 0 ? rc : 0;
 }
-- 
2.20.1