diff options
| author | Andrew Lunn <andrew@lunn.ch> | 2018-02-05 21:17:23 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-02-06 19:20:17 +0300 |
| commit | a56c69803f5a2c1cab0228cf1aebf76821ace965 (patch) | |
| tree | aead710a26cc179767e37c946c729ebf7e1cb955 | |
| parent | 21a2545bbea02ce39e91d47c9e3ef0ccd0fb0b14 (diff) | |
| download | linux-a56c69803f5a2c1cab0228cf1aebf76821ace965.tar.xz | |
net: phy: Handle not having GPIO enabled in the kernel
If CONFIG_GPIOLIB is disabled, fwnode_get_named_gpiod() becomes a stub
function, which return -ENOSYS. Handle this in the same way as
-ENOENT, i.e. assume there is no GPIO used to reset the PHYs.
Reported-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Tested-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Fixes: bafbdd527d56 ("phylib: Add device reset GPIO support")
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/phy/mdio_bus.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c index 88272b3ac2e2..24b5511222c8 100644 --- a/drivers/net/phy/mdio_bus.c +++ b/drivers/net/phy/mdio_bus.c @@ -56,7 +56,8 @@ static int mdiobus_register_gpiod(struct mdio_device *mdiodev) gpiod = fwnode_get_named_gpiod(&mdiodev->dev.of_node->fwnode, "reset-gpios", 0, GPIOD_OUT_LOW, "PHY reset"); - if (PTR_ERR(gpiod) == -ENOENT) + if (PTR_ERR(gpiod) == -ENOENT || + PTR_ERR(gpiod) == -ENOSYS) gpiod = NULL; else if (IS_ERR(gpiod)) return PTR_ERR(gpiod); |