diff options
Diffstat (limited to 'target/linux/generic/backport-5.10/706-net-phy-at803x-fix-probe-error-if-copper-page-is-sel.patch')
| -rw-r--r-- | target/linux/generic/backport-5.10/706-net-phy-at803x-fix-probe-error-if-copper-page-is-sel.patch | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/target/linux/generic/backport-5.10/706-net-phy-at803x-fix-probe-error-if-copper-page-is-sel.patch b/target/linux/generic/backport-5.10/706-net-phy-at803x-fix-probe-error-if-copper-page-is-sel.patch deleted file mode 100644 index d6ec7450e8..0000000000 --- a/target/linux/generic/backport-5.10/706-net-phy-at803x-fix-probe-error-if-copper-page-is-sel.patch +++ /dev/null @@ -1,73 +0,0 @@ -From 8f7e876273e294b732b42af2e5e6bba91d798954 Mon Sep 17 00:00:00 2001 -From: Michael Walle <michael@walle.cc> -Date: Tue, 20 Apr 2021 12:29:29 +0200 -Subject: [PATCH] net: phy: at803x: fix probe error if copper page is selected - -The commit c329e5afb42f ("net: phy: at803x: select correct page on -config init") selects the copper page during probe. This fails if the -copper page was already selected. In this case, the value of the copper -page (which is 1) is propagated through phy_restore_page() and is -finally returned for at803x_probe(). Fix it, by just using the -at803x_page_write() directly. - -Also in case of an error, the regulator is not disabled and leads to a -WARN_ON() when the probe fails. This couldn't happen before, because -at803x_parse_dt() was the last call in at803x_probe(). It is hard to -see, that the parse_dt() actually enables the regulator. Thus move the -regulator_enable() to the probe function and undo it in case of an -error. - -Fixes: c329e5afb42f ("net: phy: at803x: select correct page on config init") -Signed-off-by: Michael Walle <michael@walle.cc> -Reviewed-by: David Bauer <mail@david-bauer.net> -Signed-off-by: David S. Miller <davem@davemloft.net> ---- - drivers/net/phy/at803x.c | 23 +++++++++++++++++------ - 1 file changed, 17 insertions(+), 6 deletions(-) - ---- a/drivers/net/phy/at803x.c -+++ b/drivers/net/phy/at803x.c -@@ -527,10 +527,6 @@ static int at803x_parse_dt(struct phy_de - phydev_err(phydev, "failed to get VDDIO regulator\n"); - return PTR_ERR(priv->vddio); - } -- -- ret = regulator_enable(priv->vddio); -- if (ret < 0) -- return ret; - } - - return 0; -@@ -552,15 +548,30 @@ static int at803x_probe(struct phy_devic - if (ret) - return ret; - -+ if (priv->vddio) { -+ ret = regulator_enable(priv->vddio); -+ if (ret < 0) -+ 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 (at803x_match_phy_id(phydev, ATH8031_PHY_ID)) { -- ret = phy_select_page(phydev, AT803X_PAGE_COPPER); -- ret = phy_restore_page(phydev, AT803X_PAGE_COPPER, ret); -+ 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; - } - |