[U-Boot] [PATCH] phy: fix create_phy_by_mask for when its given an actual search mask
Cormier, Jonathan
jcormier at criticallink.com
Wed May 21 19:08:52 CEST 2014
From: Cormier, Jonathan <jcormier at criticallink.com>
get_phy_id returns -EIO when it can't read from a phy at a given addr. This would cause
create_phy_by_mask to return prematurely before it had tested the other addresses in the provided mask.
Example usage:
Replace
phydev = phy_connect(bus, phy_addr, dev, phy_if)
with
phydev = phy_find_by_mask(bus, phy_mask, phy_if)
if (phydev)
phy_connect_dev(phydev, dev);
Signed-off-by: Cormier, Jonathan <jcormier at criticallink.com>
Cc: Joe Hershberger <joe.hershberger at gmail.com>
---
drivers/net/phy/phy.c | 4 +---
1 files changed, 1 insertions(+), 3 deletions(-)
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 230ed97..aac85c4 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -609,10 +609,8 @@ static struct phy_device *create_phy_by_mask(struct mii_dev *bus,
while (phy_mask) {
int addr = ffs(phy_mask) - 1;
int r = get_phy_id(bus, addr, devad, &phy_id);
- if (r < 0)
- return ERR_PTR(r);
/* If the PHY ID is mostly f's, we didn't find anything */
- if ((phy_id & 0x1fffffff) != 0x1fffffff)
+ if (r == 0 && (phy_id & 0x1fffffff) != 0x1fffffff)
return phy_device_create(bus, addr, phy_id, interface);
phy_mask &= ~(1 << addr);
}
--
1.7.0.4
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