On Thu, Mar 12, 2020 at 07:34:18AM +0100, Oleksij Rempel wrote:
> This function will be needed in tja11xx driver for secondary PHY
> support.
>
> Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
> ---
> drivers/of/of_mdio.c | 74 ++++++++++++++++++++++++-----------------
> include/linux/of_mdio.h | 11 +++++-
> 2 files changed, 53 insertions(+), 32 deletions(-)
>
> diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
> index 8270bbf505fb..6ee7e49dcb86 100644
> --- a/drivers/of/of_mdio.c
> +++ b/drivers/of/of_mdio.c
> @@ -60,39 +60,16 @@ static struct mii_timestamper *of_find_mii_timestamper(struct device_node *node)
> return register_mii_timestamper(arg.np, arg.args[0]);
> }
>
> -static int of_mdiobus_register_phy(struct mii_bus *mdio,
> - struct device_node *child, u32 addr)
> +int __of_mdiobus_register_phy(struct mii_bus *mdio, struct phy_device *phy,
> + struct device_node *child, u32 addr)
> {
> - struct mii_timestamper *mii_ts;
> - struct phy_device *phy;
> - bool is_c45;
> - int rc;
> u32 phy_id;
I need to remove phy_id here.
> - mii_ts = of_find_mii_timestamper(child);
> - if (IS_ERR(mii_ts))
> - return PTR_ERR(mii_ts);
> -
> - is_c45 = of_device_is_compatible(child,
> - "ethernet-phy-ieee802.3-c45");
> -
> - if (!is_c45 && !of_get_phy_id(child, &phy_id))
> - phy = phy_device_create(mdio, addr, phy_id, 0, NULL);
> - else
> - phy = get_phy_device(mdio, addr, is_c45);
> - if (IS_ERR(phy)) {
> - if (mii_ts)
> - unregister_mii_timestamper(mii_ts);
> - return PTR_ERR(phy);
> - }
> + int rc;
>
> rc = of_irq_get(child, 0);
> - if (rc == -EPROBE_DEFER) {
> - if (mii_ts)
> - unregister_mii_timestamper(mii_ts);
> - phy_device_free(phy);
> + if (rc == -EPROBE_DEFER)
> return rc;
> - }
> +
> if (rc > 0) {
> phy->irq = rc;
> mdio->irq[addr] = rc;
> @@ -117,11 +94,48 @@ static int of_mdiobus_register_phy(struct mii_bus *mdio,
> /* All data is now stored in the phy struct;
> * register it */
> rc = phy_device_register(phy);
> + if (rc) {
> + of_node_put(child);
> + return rc;
> + }
> +
> + dev_dbg(&mdio->dev, "registered phy %pOFn at address %i\n",
> + child, addr);
> + return 0;
> +}
> +EXPORT_SYMBOL(__of_mdiobus_register_phy);
> +
> +static int of_mdiobus_register_phy(struct mii_bus *mdio,
> + struct device_node *child, u32 addr)
> +{
> + struct mii_timestamper *mii_ts;
> + struct phy_device *phy;
> + bool is_c45;
> + int rc;
> + u32 phy_id;
> +
> + mii_ts = of_find_mii_timestamper(child);
> + if (IS_ERR(mii_ts))
> + return PTR_ERR(mii_ts);
> +
> + is_c45 = of_device_is_compatible(child,
> + "ethernet-phy-ieee802.3-c45");
> +
> + if (!is_c45 && !of_get_phy_id(child, &phy_id))
> + phy = phy_device_create(mdio, addr, phy_id, 0, NULL);
> + else
> + phy = get_phy_device(mdio, addr, is_c45);
> + if (IS_ERR(phy)) {
> + if (mii_ts)
> + unregister_mii_timestamper(mii_ts);
> + return PTR_ERR(phy);
> + }
> +
> + rc = __of_mdiobus_register_phy(mdio, phy, child, addr);
> if (rc) {
> if (mii_ts)
> unregister_mii_timestamper(mii_ts);
> phy_device_free(phy);
> - of_node_put(child);
> return rc;
> }
>
> @@ -132,8 +146,6 @@ static int of_mdiobus_register_phy(struct mii_bus *mdio,
> if (mii_ts)
> phy->mii_ts = mii_ts;
>
> - dev_dbg(&mdio->dev, "registered phy %pOFn at address %i\n",
> - child, addr);
> return 0;
> }
>
> diff --git a/include/linux/of_mdio.h b/include/linux/of_mdio.h
> index 491a2b7e77c1..b99e9f932002 100644
> --- a/include/linux/of_mdio.h
> +++ b/include/linux/of_mdio.h
> @@ -30,7 +30,9 @@ extern struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np);
> extern int of_phy_register_fixed_link(struct device_node *np);
> extern void of_phy_deregister_fixed_link(struct device_node *np);
> extern bool of_phy_is_fixed_link(struct device_node *np);
> -
> +extern int __of_mdiobus_register_phy(struct mii_bus *mdio,
> + struct phy_device *phy,
> + struct device_node *child, u32 addr);
>
> static inline int of_mdio_parse_addr(struct device *dev,
> const struct device_node *np)
> @@ -118,6 +120,13 @@ static inline bool of_phy_is_fixed_link(struct device_node *np)
> {
> return false;
> }
> +
> +static inline int __of_mdiobus_register_phy(struct mii_bus *mdio,
> + struct phy_device *phy,
> + struct device_node *child, u32 addr)
> +{
> + return -ENOSYS;
> +}
> #endif
>
>
> --
> 2.25.1
>
>
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