Hi Andrew,
On 12/05/2017 06:28 PM, Andrew Lunn wrote:
Hi Richard
+++ b/drivers/of/of_mdio.c
@@ -77,6 +77,14 @@ static int of_mdiobus_register_phy(struct mii_bus *mdio,
if (of_property_read_bool(child, "broken-turn-around"))
mdio->phy_ignore_ta_mask |= 1 << addr;
+ if (of_property_read_u32(child, "reset-delay-us",
+ &phy->mdio.reset_delay))
+ phy->mdio.reset_delay = 0;
+
+ if (of_property_read_u32(child, "reset-post-delay-us",
+ &phy->mdio.reset_post_delay))
+ phy->mdio.reset_post_delay = 0;
of_property_read_u32() should not change the variable you pass to it,
if it does not find the property. So you can change this to:
phy->mdio.reset_delay = 0;
phy->mdio.reset_post_delay = 0;
of_property_read_u32(child, "reset-delay-us",
&phy->mdio.reset_delay);
of_property_read_u32(child, "reset-post-delay-us",
&phy->mdio.reset_post_delay);
Geert already pointed this out, but he said it's possible to omit also
the zeroing of the variables.
> On 12/05/2017 02:54 PM, Geert Uytterhoeven wrote:
>> If of_property_read_u32() fails, it doesn't write to its output
>> parameter.
>> As the structure should be zeroed during allocation, you can just
>> write:
>>
>> of_property_read_u32(child, "reset-delay-us",&phy->mdio.reset_delay);
>> of_property_read_u32(child, "reset-post-delay-us",
>> &phy->mdio.reset_post_delay);
If that's ok I'll take the shorter (Geerts) suggestion for v4.
Nonetheless thanks for your quick feedback!
regards;Richard.L
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