> +static int
> +ipq8064_mdio_read(struct mii_bus *bus, int phy_addr, int reg_offset)
> +{
> + struct ipq8064_mdio *priv = bus->priv;
> + u32 miiaddr = MII_BUSY | MII_CLKRANGE_250_300M;
> + u32 ret_val;
> + int err;
Hi Ansuel
Reverse Christmas tree. priv needs to move down a line.
> +
> + /* Reject clause 45 */
> + if (reg_offset & MII_ADDR_C45)
> + return -EOPNOTSUPP;
> +
> + miiaddr |= ((phy_addr << MII_ADDR_SHIFT) & MII_ADDR_MASK) |
> + ((reg_offset << MII_REG_SHIFT) & MII_REG_MASK);
> +
> + regmap_write(priv->base, MII_ADDR_REG_ADDR, miiaddr);
> + usleep_range(8, 10);
> +
> + err = ipq8064_mdio_wait_busy(priv);
> + if (err)
> + return err;
> +
> + regmap_read(priv->base, MII_DATA_REG_ADDR, &ret_val);
> + return (int)ret_val;
> +}
> +
> +static int
> +ipq8064_mdio_write(struct mii_bus *bus, int phy_addr, int reg_offset, u16 data)
> +{
> + struct ipq8064_mdio *priv = bus->priv;
> + u32 miiaddr = MII_WRITE | MII_BUSY | MII_CLKRANGE_250_300M;
Same here.
> +static int
> +ipq8064_mdio_probe(struct platform_device *pdev)
> +{
> + struct device_node *np = pdev->dev.of_node;
> + struct ipq8064_mdio *priv;
> + struct mii_bus *bus;
> + int ret;
> +
> + bus = devm_mdiobus_alloc_size(&pdev->dev, sizeof(*priv));
> + if (!bus)
> + return -ENOMEM;
> +
> + bus->name = "ipq8064_mdio_bus";
> + bus->read = ipq8064_mdio_read;
> + bus->write = ipq8064_mdio_write;
> + snprintf(bus->id, MII_BUS_ID_SIZE, "%s-mii", dev_name(&pdev->dev));
> + bus->parent = &pdev->dev;
> +
> + priv = bus->priv;
> + priv->base = syscon_node_to_regmap(np);
> + if (IS_ERR(priv->base) && priv->base != ERR_PTR(-EPROBE_DEFER))
> + priv->base = syscon_regmap_lookup_by_phandle(np, "master");
"master" is not documented in the binding. Do we really need two
different ways to get the base address?
Andrew
