This is a note to let you know that I've just added the patch titled
net: phy: at803x: move page selection fix to config_init
to the 5.17-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-phy-at803x-move-page-selection-fix-to-config_ini.patch
and it can be found in the queue-5.17 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 9f81eb5aafbe53b8748a92411e338d5cd7542c57
Author: Robert Hancock <robert.hancock@xxxxxxxxxx>
Date: Tue Jan 25 10:54:08 2022 -0600
net: phy: at803x: move page selection fix to config_init
[ Upstream commit 4f3a00c7f5b2cfe4e127fd3fe49b55e1b318c01f ]
The fix to select the copper page on AR8031 was being done in the probe
function rather than config_init, so it would not be redone after resume
from suspend. Move this to config_init so it is always redone when
needed.
Fixes: c329e5afb42f ("net: phy: at803x: select correct page on config init")
Signed-off-by: Robert Hancock <robert.hancock@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index 29aa811af430..a8794065b250 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -784,25 +784,7 @@ static int at803x_probe(struct phy_device *phydev)
return ret;
}
- /* Some bootloaders leave the fiber page selected.
- * Switch to the copper page, as otherwise we read
- * the PHY capabilities from the fiber side.
- */
- if (phydev->drv->phy_id == ATH8031_PHY_ID) {
- phy_lock_mdio_bus(phydev);
- ret = at803x_write_page(phydev, AT803X_PAGE_COPPER);
- phy_unlock_mdio_bus(phydev);
- if (ret)
- goto err;
- }
-
return 0;
-
-err:
- if (priv->vddio)
- regulator_disable(priv->vddio);
-
- return ret;
}
static void at803x_remove(struct phy_device *phydev)
@@ -912,6 +894,22 @@ static int at803x_config_init(struct phy_device *phydev)
{
int ret;
+ if (phydev->drv->phy_id == ATH8031_PHY_ID) {
+ /* Some bootloaders leave the fiber page selected.
+ * Switch to the copper page, as otherwise we read
+ * the PHY capabilities from the fiber side.
+ */
+ phy_lock_mdio_bus(phydev);
+ ret = at803x_write_page(phydev, AT803X_PAGE_COPPER);
+ phy_unlock_mdio_bus(phydev);
+ if (ret)
+ return ret;
+
+ ret = at8031_pll_config(phydev);
+ if (ret < 0)
+ return ret;
+ }
+
/* The RX and TX delay default is:
* after HW reset: RX delay enabled and TX delay disabled
* after SW reset: RX delay enabled, while TX delay retains the
@@ -941,12 +939,6 @@ static int at803x_config_init(struct phy_device *phydev)
if (ret < 0)
return ret;
- if (phydev->drv->phy_id == ATH8031_PHY_ID) {
- ret = at8031_pll_config(phydev);
- if (ret < 0)
- return ret;
- }
-
/* Ar803x extended next page bit is enabled by default. Cisco
* multigig switches read this bit and attempt to negotiate 10Gbps
* rates even if the next page bit is disabled. This is incorrect
