[PATCH 5/5] net: stmmac: Use acpi_mdiobus_register() for ACPI based system
DORMANTno replies
From: Kai-Heng Feng <hidden>
Date: 2022-04-20 13:00:10
Also in:
lkml, netdev
Subsystem:
networking drivers, stmmac ethernet driver, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Maxime Chevallier, Linus Torvalds
Child nodes of stmmac ACPI node may have additional properties that the PHY layer can use. To achieve that, use acpi_mdiobus_register() to find PHY nodes references via "phy-handle", so the properties of PHY nodes can be used by the PHY layer. Signed-off-by: Kai-Heng Feng <redacted> --- drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
index a5d150c5f3d8c..37cebd8f2ec5c 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c@@ -10,6 +10,8 @@ Maintainer: Giuseppe Cavallaro <peppe.cavallaro@st.com> *******************************************************************************/ +#include <linux/acpi.h> +#include <linux/acpi_mdio.h> #include <linux/gpio/consumer.h> #include <linux/io.h> #include <linux/iopoll.h>
@@ -445,6 +447,7 @@ int stmmac_mdio_register(struct net_device *ndev) struct stmmac_mdio_bus_data *mdio_bus_data = priv->plat->mdio_bus_data; struct device_node *mdio_node = priv->plat->mdio_node; struct device *dev = ndev->dev.parent; + struct fwnode_handle *fwnode = dev->fwnode; int addr, found, max_addr; if (!mdio_bus_data)
@@ -488,7 +491,10 @@ int stmmac_mdio_register(struct net_device *ndev) new_bus->phy_mask = mdio_bus_data->phy_mask; new_bus->parent = priv->device; - err = of_mdiobus_register(new_bus, mdio_node); + if (is_acpi_node(fwnode)) + err = acpi_mdiobus_register(new_bus, fwnode); + else + err = of_mdiobus_register(new_bus, mdio_node); if (err != 0) { dev_err(dev, "Cannot register the MDIO bus\n"); goto bus_register_fail;
--
2.34.1
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