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net: phy: dp83867: enable extended read / write for driver

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Add a wrapper to implement ext_read / write using phy_[read,write]_mmd.

Check if devad is the only supported extended MMD address on this PHY.

Signed-off-by: Markus Niebel <Markus.Niebel@tq-group.com>
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
This commit is contained in:
Markus Niebel
2026-07-23 17:05:20 +02:00
committed by Jerome Forissier
parent de02bc0ecc
commit 614ebea14b
1 changed files with 18 additions and 0 deletions
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drivers/net/phy/dp83867.c
+18
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@@ -126,6 +126,22 @@ struct dp83867_private {
bool sgmii_ref_clk_en;
};
static int dp83867_phy_extread(struct phy_device *phydev,
int addr, int devad, int reg)
{
if (devad != DP83867_DEVADDR)
return -EINVAL;
return phy_read_mmd(phydev, devad, addr);
};
static int dp83867_phy_extwrite(struct phy_device *phydev, int addr,
int devad, int reg, u16 val)
{
if (devad != DP83867_DEVADDR)
return -EINVAL;
return phy_write_mmd(phydev, devad, addr, (u32)val);
};
static int dp83867_config_port_mirroring(struct phy_device *phydev)
{
struct dp83867_private *dp83867 =
@@ -410,4 +426,6 @@ U_BOOT_PHY_DRIVER(dp83867) = {
.config = &dp83867_config,
.startup = &genphy_startup,
.shutdown = &genphy_shutdown,
.readext = dp83867_phy_extread,
.writeext = dp83867_phy_extwrite,
};