linux-kernel - [net-next PATCH 2/3] net: phy: at803x: add resume/suspend function to qca83xx phy

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Message-Id: <20210919151146.10501-2-ansuelsmth@gmail.com>
Date:   Sun, 19 Sep 2021 17:11:45 +0200
From:   Ansuel Smith <ansuelsmth@...il.com>
To:     Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Ansuel Smith <ansuelsmth@...il.com>
Subject: [net-next PATCH 2/3] net: phy: at803x: add resume/suspend function to qca83xx phy

Add resume/suspend function to qca83xx internal phy.
We can't use the at803x generic function as the documentation lacks of
any support for WoL regs.

Signed-off-by: Ansuel Smith <ansuelsmth@...il.com>
---
 drivers/net/phy/at803x.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index 618e014abd2f..8156fbc7f00d 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -1312,6 +1312,18 @@ static int qca83xx_config_init(struct phy_device *phydev)
 	return 0;
 }
 
+static int qca83xx_suspend(struct phy_device *phydev)
+{
+	phy_modify(phydev, MII_BMCR, 0, BMCR_PDOWN);
+
+	return 0;
+}
+
+static int qca83xx_resume(struct phy_device *phydev)
+{
+	return phy_modify(phydev, MII_BMCR, BMCR_PDOWN, 0);
+}
+
 static struct phy_driver at803x_driver[] = {
 {
 	/* Qualcomm Atheros AR8035 */
@@ -1421,6 +1433,8 @@ static struct phy_driver at803x_driver[] = {
 	.get_sset_count = at803x_get_sset_count,
 	.get_strings = at803x_get_strings,
 	.get_stats = at803x_get_stats,
+	.suspend		= qca83xx_suspend,
+	.resume			= qca83xx_resume,
 }, {
 	/* QCA8327-A from switch QCA8327-AL1A */
 	.phy_id = QCA8327_A_PHY_ID,
@@ -1434,6 +1448,8 @@ static struct phy_driver at803x_driver[] = {
 	.get_sset_count = at803x_get_sset_count,
 	.get_strings = at803x_get_strings,
 	.get_stats = at803x_get_stats,
+	.suspend		= qca83xx_suspend,
+	.resume			= qca83xx_resume,
 }, {
 	/* QCA8327-B from switch QCA8327-BL1A */
 	.phy_id = QCA8327_B_PHY_ID,
@@ -1447,6 +1463,8 @@ static struct phy_driver at803x_driver[] = {
 	.get_sset_count = at803x_get_sset_count,
 	.get_strings = at803x_get_strings,
 	.get_stats = at803x_get_stats,
+	.suspend		= qca83xx_suspend,
+	.resume			= qca83xx_resume,
 }, };
 
 module_phy_driver(at803x_driver);
-- 
2.32.0