linux-kernel - [net-next PATCH 04/14] net: phy: at803x: move qca83xx stats out of generic at803x

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Message-Id: <20231129021219.20914-5-ansuelsmth@gmail.com>
Date:   Wed, 29 Nov 2023 03:12:09 +0100
From:   Christian Marangi <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>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        linux-arm-msm@...r.kernel.org
Cc:     Christian Marangi <ansuelsmth@...il.com>
Subject: [net-next PATCH 04/14] net: phy: at803x: move qca83xx stats out of generic at803x_priv struct

Introduce a specific priv struct for qca83xx PHYs to store hw stats
data and a specific probe to allocate this alternative priv struct.

This also have the benefits of reducing memory allocated for every other
at803x PHY since only qca83xx currently supports storing hw stats.

Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
---
 drivers/net/phy/at803x.c | 27 ++++++++++++++++++++++-----
 1 file changed, 22 insertions(+), 5 deletions(-)

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index 4ff41d70fc47..3b7baa4bb637 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -301,6 +301,10 @@ static struct at803x_hw_stat qca83xx_hw_stats[] = {
 	{ "eee_wake_errors", 0x16, GENMASK(15, 0), MMD},
 };
 
+struct qca83xx_priv {
+	u64 stats[ARRAY_SIZE(qca83xx_hw_stats)];
+};
+
 struct at803x_priv {
 	int flags;
 	u16 clk_25m_reg;
@@ -311,7 +315,6 @@ struct at803x_priv {
 	bool is_1000basex;
 	struct regulator_dev *vddio_rdev;
 	struct regulator_dev *vddh_rdev;
-	u64 stats[ARRAY_SIZE(qca83xx_hw_stats)];
 };
 
 struct at803x_context {
@@ -547,7 +550,7 @@ static void qca83xx_get_strings(struct phy_device *phydev, u8 *data)
 static u64 qca83xx_get_stat(struct phy_device *phydev, int i)
 {
 	struct at803x_hw_stat stat = qca83xx_hw_stats[i];
-	struct at803x_priv *priv = phydev->priv;
+	struct qca83xx_priv *priv = phydev->priv;
 	int val;
 	u64 ret;
 
@@ -1591,6 +1594,20 @@ static int at803x_cable_test_start(struct phy_device *phydev)
 	return 0;
 }
 
+static int qca83xx_probe(struct phy_device *phydev)
+{
+	struct device *dev = &phydev->mdio.dev;
+	struct qca83xx_priv *priv;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	phydev->priv = priv;
+
+	return 0;
+}
+
 static int qca83xx_config_init(struct phy_device *phydev)
 {
 	u8 switch_revision;
@@ -2164,7 +2181,7 @@ static struct phy_driver at803x_driver[] = {
 	.name			= "Qualcomm Atheros 8337 internal PHY",
 	/* PHY_GBIT_FEATURES */
 	.link_change_notify	= qca83xx_link_change_notify,
-	.probe			= at803x_probe,
+	.probe			= qca83xx_probe,
 	.flags			= PHY_IS_INTERNAL,
 	.config_init		= qca83xx_config_init,
 	.soft_reset		= genphy_soft_reset,
@@ -2180,7 +2197,7 @@ static struct phy_driver at803x_driver[] = {
 	.name			= "Qualcomm Atheros 8327-A internal PHY",
 	/* PHY_GBIT_FEATURES */
 	.link_change_notify	= qca83xx_link_change_notify,
-	.probe			= at803x_probe,
+	.probe			= qca83xx_probe,
 	.flags			= PHY_IS_INTERNAL,
 	.config_init		= qca83xx_config_init,
 	.soft_reset		= genphy_soft_reset,
@@ -2196,7 +2213,7 @@ static struct phy_driver at803x_driver[] = {
 	.name			= "Qualcomm Atheros 8327-B internal PHY",
 	/* PHY_GBIT_FEATURES */
 	.link_change_notify	= qca83xx_link_change_notify,
-	.probe			= at803x_probe,
+	.probe			= qca83xx_probe,
 	.flags			= PHY_IS_INTERNAL,
 	.config_init		= qca83xx_config_init,
 	.soft_reset		= genphy_soft_reset,
-- 
2.40.1