netdev - [PATCH net-next 06/10] net: mdio: mvmdio: Convert XSMI bus to new API

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Date:   Sun,  8 May 2022 17:30:45 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     netdev <netdev@...r.kernel.org>
Cc:     Sean Wang <sean.wang@...iatek.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        DENG Qingfang <dqfext@...il.com>, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Joakim Zhang <qiangqing.zhang@....com>,
        Sergey Shtylyov <s.shtylyov@....ru>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Tobias Waldekranz <tobias@...dekranz.com>,
        Marcin Wojtas <mw@...ihalf.com>,
        Calvin Johnson <calvin.johnson@....nxp.com>,
        Markus Koch <markus@...syncing.net>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Yang Yingliang <yangyingliang@...wei.com>,
        Hao Chen <chenhao288@...ilicon.com>
Subject: [PATCH net-next 06/10] net: mdio: mvmdio: Convert XSMI bus to new API

The marvell MDIO driver supports two different hardware blocks. The
XSMI block is C45 only. Convert this block to the new API, and only
populate the c45 calls in the bus structure.

Signed-off-by: Andrew Lunn <andrew@...n.ch>
---
 drivers/net/ethernet/marvell/mvmdio.c | 24 ++++++++----------------
 1 file changed, 8 insertions(+), 16 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c
index ef878973b859..2d654a40af13 100644
--- a/drivers/net/ethernet/marvell/mvmdio.c
+++ b/drivers/net/ethernet/marvell/mvmdio.c
@@ -204,21 +204,17 @@ static const struct orion_mdio_ops orion_mdio_xsmi_ops = {
 	.poll_interval_max = MVMDIO_XSMI_POLL_INTERVAL_MAX,
 };
 
-static int orion_mdio_xsmi_read(struct mii_bus *bus, int mii_id,
-				int regnum)
+static int orion_mdio_xsmi_read_c45(struct mii_bus *bus, int mii_id,
+				    int dev_addr, int regnum)
 {
 	struct orion_mdio_dev *dev = bus->priv;
-	u16 dev_addr = (regnum >> 16) & GENMASK(4, 0);
 	int ret;
 
-	if (!(regnum & MII_ADDR_C45))
-		return -EOPNOTSUPP;
-
 	ret = orion_mdio_wait_ready(&orion_mdio_xsmi_ops, bus);
 	if (ret < 0)
 		return ret;
 
-	writel(regnum & GENMASK(15, 0), dev->regs + MVMDIO_XSMI_ADDR_REG);
+	writel(regnum, dev->regs + MVMDIO_XSMI_ADDR_REG);
 	writel((mii_id << MVMDIO_XSMI_PHYADDR_SHIFT) |
 	       (dev_addr << MVMDIO_XSMI_DEVADDR_SHIFT) |
 	       MVMDIO_XSMI_READ_OPERATION,
@@ -237,21 +233,17 @@ static int orion_mdio_xsmi_read(struct mii_bus *bus, int mii_id,
 	return readl(dev->regs + MVMDIO_XSMI_MGNT_REG) & GENMASK(15, 0);
 }
 
-static int orion_mdio_xsmi_write(struct mii_bus *bus, int mii_id,
-				int regnum, u16 value)
+static int orion_mdio_xsmi_write_c45(struct mii_bus *bus, int mii_id,
+				     int dev_addr, int regnum, u16 value)
 {
 	struct orion_mdio_dev *dev = bus->priv;
-	u16 dev_addr = (regnum >> 16) & GENMASK(4, 0);
 	int ret;
 
-	if (!(regnum & MII_ADDR_C45))
-		return -EOPNOTSUPP;
-
 	ret = orion_mdio_wait_ready(&orion_mdio_xsmi_ops, bus);
 	if (ret < 0)
 		return ret;
 
-	writel(regnum & GENMASK(15, 0), dev->regs + MVMDIO_XSMI_ADDR_REG);
+	writel(regnum, dev->regs + MVMDIO_XSMI_ADDR_REG);
 	writel((mii_id << MVMDIO_XSMI_PHYADDR_SHIFT) |
 	       (dev_addr << MVMDIO_XSMI_DEVADDR_SHIFT) |
 	       MVMDIO_XSMI_WRITE_OPERATION | value,
@@ -302,8 +294,8 @@ static int orion_mdio_probe(struct platform_device *pdev)
 		bus->write = orion_mdio_smi_write;
 		break;
 	case BUS_TYPE_XSMI:
-		bus->read = orion_mdio_xsmi_read;
-		bus->write = orion_mdio_xsmi_write;
+		bus->read_c45 = orion_mdio_xsmi_read_c45;
+		bus->write_c45 = orion_mdio_xsmi_write_c45;
 		break;
 	}
 
-- 
2.36.0