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Subject[PATCH 6/7] usb: phy: gpio-vbus: fix deferred probe from __init
Date
Move probe out of __init section and don't use platform_driver_probe
which cannot be used with deferred probing.

Since commit e9354576 ("gpiolib: Defer failed gpio requests by default")
and 04bf3011 ("regulator: Support driver probe deferral") this driver
might return -EPROBE_DEFER if a gpio_request or regulator_get fails.

Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
---
drivers/usb/phy/phy-gpio-vbus-usb.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/phy/phy-gpio-vbus-usb.c b/drivers/usb/phy/phy-gpio-vbus-usb.c
index b2f29c9..02799a5 100644
--- a/drivers/usb/phy/phy-gpio-vbus-usb.c
+++ b/drivers/usb/phy/phy-gpio-vbus-usb.c
@@ -241,7 +241,7 @@ static int gpio_vbus_set_suspend(struct usb_phy *phy, int suspend)

/* platform driver interface */

-static int __init gpio_vbus_probe(struct platform_device *pdev)
+static int gpio_vbus_probe(struct platform_device *pdev)
{
struct gpio_vbus_mach_info *pdata = dev_get_platdata(&pdev->dev);
struct gpio_vbus_data *gpio_vbus;
@@ -349,7 +349,7 @@ err_gpio:
return err;
}

-static int __exit gpio_vbus_remove(struct platform_device *pdev)
+static int gpio_vbus_remove(struct platform_device *pdev)
{
struct gpio_vbus_data *gpio_vbus = platform_get_drvdata(pdev);
struct gpio_vbus_mach_info *pdata = dev_get_platdata(&pdev->dev);
@@ -398,8 +398,6 @@ static const struct dev_pm_ops gpio_vbus_dev_pm_ops = {
};
#endif

-/* NOTE: the gpio-vbus device may *NOT* be hotplugged */
-
MODULE_ALIAS("platform:gpio-vbus");

static struct platform_driver gpio_vbus_driver = {
@@ -410,10 +408,11 @@ static struct platform_driver gpio_vbus_driver = {
.pm = &gpio_vbus_dev_pm_ops,
#endif
},
- .remove = __exit_p(gpio_vbus_remove),
+ .probe = gpio_vbus_probe,
+ .remove = gpio_vbus_remove,
};

-module_platform_driver_probe(gpio_vbus_driver, gpio_vbus_probe);
+module_platform_driver(gpio_vbus_driver);

MODULE_DESCRIPTION("simple GPIO controlled OTG transceiver driver");
MODULE_AUTHOR("Philipp Zabel");
--
1.8.3.2


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