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net: dsa: mv88e6xxx: use gpio get optional variant

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Use the optional variant to get the reset GPIO line, instead of checking
for the -ENOENT error.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vivien Didelot 2016-06-20 13:14:03 -04:00 committed by David S. Miller
parent b7e66a5fad
commit c6d19ab609
1 changed files with 3 additions and 10 deletions
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13
drivers/net/dsa/mv88e6xxx.c
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@ -3744,16 +3744,9 @@ static int mv88e6xxx_probe(struct mdio_device *mdiodev)
if (!ps->info)
return -ENODEV;
ps->reset = devm_gpiod_get(dev, "reset", GPIOD_ASIS);
if (IS_ERR(ps->reset)) {
err = PTR_ERR(ps->reset);
if (err == -ENOENT) {
/* Optional, so not an error */
ps->reset = NULL;
} else {
return err;
}
}
ps->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_ASIS);
if (IS_ERR(ps->reset))
return PTR_ERR(ps->reset);
if (mv88e6xxx_has(ps, MV88E6XXX_FLAG_EEPROM) &&
!of_property_read_u32(np, "eeprom-length", &eeprom_len))