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mdio_bus: suppress err message for reset gpio EPROBE_DEFER

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The mdio_bus may have dependencies from GPIO controller and so got
deferred. Now it will print error message every time -EPROBE_DEFER is
returned which from:
__mdiobus_register()
 |-devm_gpiod_get_optional()
without actually identifying error code.

"mdio_bus 4a101000.mdio: mii_bus 4a101000.mdio couldn't get reset GPIO"

Hence, suppress error message for devm_gpiod_get_optional() returning
-EPROBE_DEFER case by using dev_err_probe().

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Link: https://lore.kernel.org/r/20201119203446.20857-1-grygorii.strashko@ti.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Grygorii Strashko 2020-11-19 22:34:46 +02:00 committed by Jakub Kicinski
parent bf7b0bf68e
commit 0a12ad5929
1 changed files with 4 additions and 3 deletions
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7
drivers/net/phy/mdio_bus.c
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@ -546,10 +546,11 @@ int __mdiobus_register(struct mii_bus *bus, struct module *owner)
/* de-assert bus level PHY GPIO reset */
gpiod = devm_gpiod_get_optional(&bus->dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(gpiod)) {
dev_err(&bus->dev, "mii_bus %s couldn't get reset GPIO\n",
bus->id);
err = dev_err_probe(&bus->dev, PTR_ERR(gpiod),
"mii_bus %s couldn't get reset GPIO\n",
bus->id);
device_del(&bus->dev);
return PTR_ERR(gpiod);
return err;
} else if (gpiod) {
bus->reset_gpiod = gpiod;