mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-27 17:18:59 +00:00
f2f42a54e8
The qca8k patch series brings the numbering to 799. This patch renames 7xx patches to create space for more backports to be added. Signed-off-by: Matthew Hagan <mnhagan88@gmail.com> [rename 729->719] Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
81 lines
2.4 KiB
Diff
81 lines
2.4 KiB
Diff
From ce062a0adbfe933b1932235fdfd874c4c91d1bb0 Mon Sep 17 00:00:00 2001
|
|
From: Ansuel Smith <ansuelsmth@gmail.com>
|
|
Date: Sat, 11 Sep 2021 17:50:09 +0200
|
|
Subject: net: dsa: qca8k: fix kernel panic with legacy mdio mapping
|
|
|
|
When the mdio legacy mapping is used the mii_bus priv registered by DSA
|
|
refer to the dsa switch struct instead of the qca8k_priv struct and
|
|
causes a kernel panic. Create dedicated function when the internal
|
|
dedicated mdio driver is used to properly handle the 2 different
|
|
implementation.
|
|
|
|
Fixes: 759bafb8a322 ("net: dsa: qca8k: add support for internal phy and internal mdio")
|
|
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
|
|
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
---
|
|
drivers/net/dsa/qca8k.c | 30 ++++++++++++++++++++++--------
|
|
1 file changed, 22 insertions(+), 8 deletions(-)
|
|
|
|
--- a/drivers/net/dsa/qca8k.c
|
|
+++ b/drivers/net/dsa/qca8k.c
|
|
@@ -643,10 +643,8 @@ qca8k_mdio_busy_wait(struct mii_bus *bus
|
|
}
|
|
|
|
static int
|
|
-qca8k_mdio_write(struct mii_bus *salve_bus, int phy, int regnum, u16 data)
|
|
+qca8k_mdio_write(struct mii_bus *bus, int phy, int regnum, u16 data)
|
|
{
|
|
- struct qca8k_priv *priv = salve_bus->priv;
|
|
- struct mii_bus *bus = priv->bus;
|
|
u16 r1, r2, page;
|
|
u32 val;
|
|
int ret;
|
|
@@ -682,10 +680,8 @@ exit:
|
|
}
|
|
|
|
static int
|
|
-qca8k_mdio_read(struct mii_bus *salve_bus, int phy, int regnum)
|
|
+qca8k_mdio_read(struct mii_bus *bus, int phy, int regnum)
|
|
{
|
|
- struct qca8k_priv *priv = salve_bus->priv;
|
|
- struct mii_bus *bus = priv->bus;
|
|
u16 r1, r2, page;
|
|
u32 val;
|
|
int ret;
|
|
@@ -727,6 +723,24 @@ exit:
|
|
}
|
|
|
|
static int
|
|
+qca8k_internal_mdio_write(struct mii_bus *slave_bus, int phy, int regnum, u16 data)
|
|
+{
|
|
+ struct qca8k_priv *priv = slave_bus->priv;
|
|
+ struct mii_bus *bus = priv->bus;
|
|
+
|
|
+ return qca8k_mdio_write(bus, phy, regnum, data);
|
|
+}
|
|
+
|
|
+static int
|
|
+qca8k_internal_mdio_read(struct mii_bus *slave_bus, int phy, int regnum)
|
|
+{
|
|
+ struct qca8k_priv *priv = slave_bus->priv;
|
|
+ struct mii_bus *bus = priv->bus;
|
|
+
|
|
+ return qca8k_mdio_read(bus, phy, regnum);
|
|
+}
|
|
+
|
|
+static int
|
|
qca8k_phy_write(struct dsa_switch *ds, int port, int regnum, u16 data)
|
|
{
|
|
struct qca8k_priv *priv = ds->priv;
|
|
@@ -775,8 +789,8 @@ qca8k_mdio_register(struct qca8k_priv *p
|
|
|
|
bus->priv = (void *)priv;
|
|
bus->name = "qca8k slave mii";
|
|
- bus->read = qca8k_mdio_read;
|
|
- bus->write = qca8k_mdio_write;
|
|
+ bus->read = qca8k_internal_mdio_read;
|
|
+ bus->write = qca8k_internal_mdio_write;
|
|
snprintf(bus->id, MII_BUS_ID_SIZE, "qca8k-%d",
|
|
ds->index);
|
|
|