[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20240123214420.25716-9-luizluca@gmail.com>
Date: Tue, 23 Jan 2024 18:44:16 -0300
From: Luiz Angelo Daros de Luca <luizluca@...il.com>
To: netdev@...r.kernel.org
Cc: linus.walleij@...aro.org,
alsi@...g-olufsen.dk,
andrew@...n.ch,
f.fainelli@...il.com,
olteanv@...il.com,
davem@...emloft.net,
edumazet@...gle.com,
kuba@...nel.org,
pabeni@...hat.com,
arinc.unal@...nc9.com,
ansuelsmth@...il.com,
Luiz Angelo Daros de Luca <luizluca@...il.com>
Subject: [PATCH 08/11] net: dsa: realtek: clean user_mii_bus setup
The line assigning dev.of_node in mdio_bus has been removed since the
subsequent of_mdiobus_register will always overwrite it.
ds->user_mii_bus is not assigned anymore[1]. It should work as before as
long as the switch ports have a valid phy-handle property.
Since commit 3b73a7b8ec38 ("net: mdio_bus: add refcounting for fwnodes
to mdiobus"), we can put the "mdio" node just after the MDIO bus
registration. The switch unregistration was moved into
realtek_common_remove() as both interfaces now use the same code path.
[1] https://lkml.kernel.org/netdev/20231213120656.x46fyad6ls7sqyzv@skbuf/T/#u
Signed-off-by: Luiz Angelo Daros de Luca <luizluca@...il.com>
---
drivers/net/dsa/realtek/realtek-mdio.c | 5 -----
drivers/net/dsa/realtek/realtek-smi.c | 15 ++-------------
drivers/net/dsa/realtek/rtl83xx.c | 2 ++
3 files changed, 4 insertions(+), 18 deletions(-)
diff --git a/drivers/net/dsa/realtek/realtek-mdio.c b/drivers/net/dsa/realtek/realtek-mdio.c
index 0171185ec665..c75b4550802c 100644
--- a/drivers/net/dsa/realtek/realtek-mdio.c
+++ b/drivers/net/dsa/realtek/realtek-mdio.c
@@ -158,11 +158,6 @@ void realtek_mdio_remove(struct mdio_device *mdiodev)
{
struct realtek_priv *priv = dev_get_drvdata(&mdiodev->dev);
- if (!priv)
- return;
-
- dsa_unregister_switch(priv->ds);
-
rtl83xx_remove(priv);
}
EXPORT_SYMBOL_NS_GPL(realtek_mdio_remove, REALTEK_DSA);
diff --git a/drivers/net/dsa/realtek/realtek-smi.c b/drivers/net/dsa/realtek/realtek-smi.c
index 0ccb2a6059a6..a89813e527d2 100644
--- a/drivers/net/dsa/realtek/realtek-smi.c
+++ b/drivers/net/dsa/realtek/realtek-smi.c
@@ -331,7 +331,7 @@ static int realtek_smi_setup_mdio(struct dsa_switch *ds)
{
struct realtek_priv *priv = ds->priv;
struct device_node *mdio_np;
- int ret;
+ int ret = 0;
mdio_np = of_get_child_by_name(priv->dev->of_node, "mdio");
if (!mdio_np) {
@@ -344,15 +344,14 @@ static int realtek_smi_setup_mdio(struct dsa_switch *ds)
ret = -ENOMEM;
goto err_put_node;
}
+
priv->user_mii_bus->priv = priv;
priv->user_mii_bus->name = "SMI user MII";
priv->user_mii_bus->read = realtek_smi_mdio_read;
priv->user_mii_bus->write = realtek_smi_mdio_write;
snprintf(priv->user_mii_bus->id, MII_BUS_ID_SIZE, "SMI-%d",
ds->index);
- priv->user_mii_bus->dev.of_node = mdio_np;
priv->user_mii_bus->parent = priv->dev;
- ds->user_mii_bus = priv->user_mii_bus;
ret = devm_of_mdiobus_register(priv->dev, priv->user_mii_bus, mdio_np);
if (ret) {
@@ -361,8 +360,6 @@ static int realtek_smi_setup_mdio(struct dsa_switch *ds)
goto err_put_node;
}
- return 0;
-
err_put_node:
of_node_put(mdio_np);
@@ -434,14 +431,6 @@ void realtek_smi_remove(struct platform_device *pdev)
{
struct realtek_priv *priv = platform_get_drvdata(pdev);
- if (!priv)
- return;
-
- dsa_unregister_switch(priv->ds);
-
- if (priv->user_mii_bus)
- of_node_put(priv->user_mii_bus->dev.of_node);
-
rtl83xx_remove(priv);
}
EXPORT_SYMBOL_NS_GPL(realtek_smi_remove, REALTEK_DSA);
diff --git a/drivers/net/dsa/realtek/rtl83xx.c b/drivers/net/dsa/realtek/rtl83xx.c
index 3d07c5662fa4..53bacbacc82e 100644
--- a/drivers/net/dsa/realtek/rtl83xx.c
+++ b/drivers/net/dsa/realtek/rtl83xx.c
@@ -190,6 +190,8 @@ void rtl83xx_remove(struct realtek_priv *priv)
if (!priv)
return;
+ dsa_unregister_switch(priv->ds);
+
/* leave the device reset asserted */
if (priv->reset)
gpiod_set_value(priv->reset, 1);
--
2.43.0
Powered by blists - more mailing lists