netdev - [PATCH v0 RFC RFT net-next 3/5] net: phy: bcm87xx: Use mmd helpers

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Message-Id: <20220407225023.3510609-4-andrew@lunn.ch>
Date:   Fri,  8 Apr 2022 00:50:21 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     netdev <netdev@...r.kernel.org>
Cc:     Vladimir Oltean <vladimir.oltean@....com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Jose Abreu <Jose.Abreu@...opsys.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <rmk+kernel@...linux.org.uk>,
        bcm-kernel-feedback-list@...adcom.com, Andrew Lunn <andrew@...n.ch>
Subject: [PATCH v0 RFC RFT net-next 3/5] net: phy: bcm87xx: Use mmd helpers

Rather than construct special phy device addresses to access C45
registers, use the mmd helpers. These will directly call the C45 API
of the MDIO bus driver.

Signed-off-by: Andrew Lunn <andrew@...n.ch>
---
 drivers/net/phy/bcm87xx.c | 36 ++++++++++++++++++++----------------
 1 file changed, 20 insertions(+), 16 deletions(-)

diff --git a/drivers/net/phy/bcm87xx.c b/drivers/net/phy/bcm87xx.c
index 313563482690..cc2858107668 100644
--- a/drivers/net/phy/bcm87xx.c
+++ b/drivers/net/phy/bcm87xx.c
@@ -10,12 +10,12 @@
 #define PHY_ID_BCM8706	0x0143bdc1
 #define PHY_ID_BCM8727	0x0143bff0
 
-#define BCM87XX_PMD_RX_SIGNAL_DETECT	(MII_ADDR_C45 | 0x1000a)
-#define BCM87XX_10GBASER_PCS_STATUS	(MII_ADDR_C45 | 0x30020)
-#define BCM87XX_XGXS_LANE_STATUS	(MII_ADDR_C45 | 0x40018)
+#define BCM87XX_PMD_RX_SIGNAL_DETECT	0x000a
+#define BCM87XX_10GBASER_PCS_STATUS	0x0020
+#define BCM87XX_XGXS_LANE_STATUS	0x0018
 
-#define BCM87XX_LASI_CONTROL (MII_ADDR_C45 | 0x39002)
-#define BCM87XX_LASI_STATUS (MII_ADDR_C45 | 0x39005)
+#define BCM87XX_LASI_CONTROL		0x9002
+#define BCM87XX_LASI_STATUS		0x9005
 
 #if IS_ENABLED(CONFIG_OF_MDIO)
 /* Set and/or override some configuration registers based on the
@@ -54,11 +54,10 @@ static int bcm87xx_of_reg_init(struct phy_device *phydev)
 		u16 reg		= be32_to_cpup(paddr++);
 		u16 mask	= be32_to_cpup(paddr++);
 		u16 val_bits	= be32_to_cpup(paddr++);
-		u32 regnum = mdiobus_c45_addr(devid, reg);
 		int val = 0;
 
 		if (mask) {
-			val = phy_read(phydev, regnum);
+			val = phy_read_mmd(phydev, devid, reg);
 			if (val < 0) {
 				ret = val;
 				goto err;
@@ -67,7 +66,7 @@ static int bcm87xx_of_reg_init(struct phy_device *phydev)
 		}
 		val |= val_bits;
 
-		ret = phy_write(phydev, regnum, val);
+		ret = phy_write_mmd(phydev, devid, reg, val);
 		if (ret < 0)
 			goto err;
 	}
@@ -104,21 +103,24 @@ static int bcm87xx_read_status(struct phy_device *phydev)
 	int pcs_status;
 	int xgxs_lane_status;
 
-	rx_signal_detect = phy_read(phydev, BCM87XX_PMD_RX_SIGNAL_DETECT);
+	rx_signal_detect = phy_read_mmd(phydev, MDIO_MMD_PMAPMD,
+					BCM87XX_PMD_RX_SIGNAL_DETECT);
 	if (rx_signal_detect < 0)
 		return rx_signal_detect;
 
 	if ((rx_signal_detect & 1) == 0)
 		goto no_link;
 
-	pcs_status = phy_read(phydev, BCM87XX_10GBASER_PCS_STATUS);
+	pcs_status = phy_read_mmd(phydev, MDIO_MMD_PCS,
+				  BCM87XX_10GBASER_PCS_STATUS);
 	if (pcs_status < 0)
 		return pcs_status;
 
 	if ((pcs_status & 1) == 0)
 		goto no_link;
 
-	xgxs_lane_status = phy_read(phydev, BCM87XX_XGXS_LANE_STATUS);
+	xgxs_lane_status = phy_read_mmd(phydev, MDIO_MMD_PHYXS,
+					BCM87XX_XGXS_LANE_STATUS);
 	if (xgxs_lane_status < 0)
 		return xgxs_lane_status;
 
@@ -139,25 +141,27 @@ static int bcm87xx_config_intr(struct phy_device *phydev)
 {
 	int reg, err;
 
-	reg = phy_read(phydev, BCM87XX_LASI_CONTROL);
+	reg = phy_read_mmd(phydev, MDIO_MMD_PCS, BCM87XX_LASI_CONTROL);
 
 	if (reg < 0)
 		return reg;
 
 	if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
-		err = phy_read(phydev, BCM87XX_LASI_STATUS);
+		err = phy_read_mmd(phydev, MDIO_MMD_PCS, BCM87XX_LASI_STATUS);
 		if (err)
 			return err;
 
 		reg |= 1;
-		err = phy_write(phydev, BCM87XX_LASI_CONTROL, reg);
+		err = phy_write_mmd(phydev, MDIO_MMD_PCS,
+				    BCM87XX_LASI_CONTROL, reg);
 	} else {
 		reg &= ~1;
-		err = phy_write(phydev, BCM87XX_LASI_CONTROL, reg);
+		err = phy_write_mmd(phydev, MDIO_MMD_PCS,
+				    BCM87XX_LASI_CONTROL, reg);
 		if (err)
 			return err;
 
-		err = phy_read(phydev, BCM87XX_LASI_STATUS);
+		err = phy_read_mmd(phydev, MDIO_MMD_PCS, BCM87XX_LASI_STATUS);
 	}
 
 	return err;
-- 
2.35.1