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net/phy: micrel: fix bugged test on device tree loading for ksz9021 

In ksz9021_load_values_from_of() val2 to val4 aren't tested against their
initialization value.
This causes the test to always succeed, and this value to be used as if it
was loaded from the devicetree instead of being ignored, in case of a
missing/invalid property in the ethernet OF device node.
As a result, the value "0" is written to the relevant registers.

Change the conditions to test against the right initialization value.

Signed-off-by: Hubert Chaumette <hchaumette@adeneo-embedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hubert Chaumette 2014-04-22 15:01:04 +02:00 committed by David S. Miller
parent 6a51b5e4d5
commit 6a1197457f
1 changed files with 3 additions and 3 deletions
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6
drivers/net/phy/micrel.c
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@ -246,13 +246,13 @@ static int ksz9021_load_values_from_of(struct phy_device *phydev,
if (val1 != -1)
newval = ((newval & 0xfff0) | ((val1 / PS_TO_REG) & 0xf) << 0);
if (val2 != -1)
if (val2 != -2)
newval = ((newval & 0xff0f) | ((val2 / PS_TO_REG) & 0xf) << 4);
if (val3 != -1)
if (val3 != -3)
newval = ((newval & 0xf0ff) | ((val3 / PS_TO_REG) & 0xf) << 8);
if (val4 != -1)
if (val4 != -4)
newval = ((newval & 0x0fff) | ((val4 / PS_TO_REG) & 0xf) << 12);
return kszphy_extended_write(phydev, reg, newval);