linux-kernel - [PATCH v5 net-next 07/13] net: phy: marvell-88q2xxx: add suspend / resume ops

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Date: Mon, 22 Jan 2024 22:28:40 +0100
From: Dimitri Fedrau <dima.fedrau@...il.com>
To: 
Cc: Dimitri Fedrau <dima.fedrau@...il.com>,
	Andrew Lunn <andrew@...n.ch>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Russell King <linux@...linux.org.uk>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Stefan Eichenberger <eichest@...il.com>,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v5 net-next 07/13] net: phy: marvell-88q2xxx: add suspend / resume ops

Add suspend/resume ops for Marvell 88Q2xxx devices.

Signed-off-by: Dimitri Fedrau <dima.fedrau@...il.com>
---
 drivers/net/phy/marvell-88q2xxx.c | 34 +++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/drivers/net/phy/marvell-88q2xxx.c b/drivers/net/phy/marvell-88q2xxx.c
index 635827b4a692..4cb8fe524795 100644
--- a/drivers/net/phy/marvell-88q2xxx.c
+++ b/drivers/net/phy/marvell-88q2xxx.c
@@ -457,6 +457,38 @@ static irqreturn_t mv88q2xxx_handle_interrupt(struct phy_device *phydev)
 	return IRQ_HANDLED;
 }
 
+static int mv88q2xxx_suspend(struct phy_device *phydev)
+{
+	int ret;
+
+	/* Disable PHY interrupts */
+	if (phy_interrupt_is_valid(phydev)) {
+		phydev->interrupts = PHY_INTERRUPT_DISABLED;
+		ret = mv88q2xxx_config_intr(phydev);
+		if (ret)
+			return ret;
+	}
+
+	return phy_set_bits_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL1,
+				MDIO_CTRL1_LPOWER);
+}
+
+static int mv88q2xxx_resume(struct phy_device *phydev)
+{
+	int ret;
+
+	/* Enable PHY interrupts */
+	if (phy_interrupt_is_valid(phydev)) {
+		phydev->interrupts = PHY_INTERRUPT_ENABLED;
+		ret = mv88q2xxx_config_intr(phydev);
+		if (ret)
+			return ret;
+	}
+
+	return phy_clear_bits_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL1,
+				  MDIO_CTRL1_LPOWER);
+}
+
 static int mv88q222x_soft_reset(struct phy_device *phydev)
 {
 	int ret;
@@ -562,6 +594,8 @@ static struct phy_driver mv88q2xxx_driver[] = {
 		.set_loopback		= genphy_c45_loopback,
 		.get_sqi		= mv88q2xxx_get_sqi,
 		.get_sqi_max		= mv88q2xxx_get_sqi_max,
+		.suspend		= mv88q2xxx_suspend,
+		.resume			= mv88q2xxx_resume,
 	},
 };
 
-- 
2.39.2