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Diffstat (limited to 'drivers/ssb')
-rw-r--r--drivers/ssb/driver_gpio.c12
-rw-r--r--drivers/ssb/main.c9
-rw-r--r--drivers/ssb/ssb_private.h5
3 files changed, 26 insertions, 0 deletions
diff --git a/drivers/ssb/driver_gpio.c b/drivers/ssb/driver_gpio.c
index accabe39b320..dc109de228c6 100644
--- a/drivers/ssb/driver_gpio.c
+++ b/drivers/ssb/driver_gpio.c
@@ -196,3 +196,15 @@ 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;
+}
diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c
index 9987d9f366f4..3b645b8a261f 100644
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -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);
diff --git a/drivers/ssb/ssb_private.h b/drivers/ssb/ssb_private.h
index 53198dcec90e..466171b77f68 100644
--- a/drivers/ssb/ssb_private.h
+++ b/drivers/ssb/ssb_private.h
@@ -267,11 +267,16 @@ 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_ */