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authorRussell King <rmk+kernel@armlinux.org.uk>2019-06-05 11:44:55 +0100
committerRussell King <rmk+kernel@armlinux.org.uk>2020-02-28 12:36:58 +0000
commit6d7f234524423d3ca14d5f00cb5052ef78ef5dbf (patch)
tree1eadc1192ae7be6b6b8cf6eea2bcf8d3fa649a0b
parentde1d66333983e0c80b551518ab62f11102969e6a (diff)
net: phy: marvell10g: allow PHY to probe without firmware
Allow the PHY to probe when there is no firmware, but do not allow the link to come up by forcing the PHY state to PHY_HALTED in a similar way to phy_error(). Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
-rw-r--r--drivers/net/phy/marvell10g.c19
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/net/phy/marvell10g.c b/drivers/net/phy/marvell10g.c
index c3c901128ef2..af5d46704e68 100644
--- a/drivers/net/phy/marvell10g.c
+++ b/drivers/net/phy/marvell10g.c
@@ -75,6 +75,8 @@ enum {
};
struct mv3310_priv {
+ bool firmware_failed;
+
struct device *hwmon_dev;
char *hwmon_name;
u8 num_leds;
@@ -311,7 +313,7 @@ static int mv3310_probe(struct phy_device *phydev)
if (ret & MV_PMA_BOOT_FATAL) {
dev_warn(&phydev->mdio.dev,
"PHY failed to boot firmware, status=%04x\n", ret);
- return -ENODEV;
+ priv->firmware_failed = true;
}
ret = mv3310_hwmon_probe(phydev);
@@ -339,6 +341,19 @@ static int mv3310_resume(struct phy_device *phydev)
return mv3310_hwmon_config(phydev, true);
}
+static int mv3310_start(struct phy_device *phydev)
+{
+ struct mv3310_priv *priv = dev_get_drvdata(&phydev->mdio.dev);
+
+ if (priv->firmware_failed) {
+ dev_warn(&phydev->mdio.dev,
+ "PHY firmware failure: PHY not starting");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
/* Some PHYs in the Alaska family such as the 88X3310 and the 88E2010
* don't set bit 14 in PMA Extended Abilities (1.11), although they do
* support 2.5GBASET and 5GBASET. For these models, we can still read their
@@ -602,6 +617,7 @@ static struct phy_driver mv3310_drivers[] = {
.probe = mv3310_probe,
.suspend = mv3310_suspend,
.resume = mv3310_resume,
+ .start = mv3310_start,
.config_aneg = mv3310_config_aneg,
.aneg_done = mv3310_aneg_done,
.read_status = mv3310_read_status,
@@ -613,6 +629,7 @@ static struct phy_driver mv3310_drivers[] = {
.probe = mv3310_probe,
.suspend = mv3310_suspend,
.resume = mv3310_resume,
+ .start = mv3310_start,
.soft_reset = genphy_no_soft_reset,
.config_init = mv3310_config_init,
.config_aneg = mv3310_config_aneg,