Commit 600485ed authored by Hauke Mehrtens's avatar Hauke Mehrtens Committed by John W. Linville

ssb: unregister gpios before unloading ssb

This patch unregisters the gpio chip before ssb gets unloaded.
Signed-off-by: default avatarHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent c50ae947
......@@ -174,3 +174,15 @@ int ssb_gpio_init(struct ssb_bus *bus)
return -1;
}
int ssb_gpio_unregister(struct ssb_bus *bus)
{
if (ssb_chipco_available(&bus->chipco) ||
ssb_extif_available(&bus->extif)) {
return gpiochip_remove(&bus->gpio);
} else {
SSB_WARN_ON(1);
}
return -1;
}
......@@ -443,6 +443,15 @@ static void ssb_devices_unregister(struct ssb_bus *bus)
void ssb_bus_unregister(struct ssb_bus *bus)
{
int err;
err = ssb_gpio_unregister(bus);
if (err == -EBUSY)
ssb_dprintk(KERN_ERR PFX "Some GPIOs are still in use.\n");
else if (err)
ssb_dprintk(KERN_ERR PFX
"Can not unregister GPIO driver: %i\n", err);
ssb_buses_lock();
ssb_devices_unregister(bus);
list_del(&bus->list);
......
......@@ -252,11 +252,16 @@ static inline void ssb_extif_init(struct ssb_extif *extif)
#ifdef CONFIG_SSB_DRIVER_GPIO
extern int ssb_gpio_init(struct ssb_bus *bus);
extern int ssb_gpio_unregister(struct ssb_bus *bus);
#else /* CONFIG_SSB_DRIVER_GPIO */
static inline int ssb_gpio_init(struct ssb_bus *bus)
{
return -ENOTSUPP;
}
static inline int ssb_gpio_unregister(struct ssb_bus *bus)
{
return 0;
}
#endif /* CONFIG_SSB_DRIVER_GPIO */
#endif /* LINUX_SSB_PRIVATE_H_ */
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