From 8b730b7134b0953bfb650b139b65df96749d7148 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sun, 3 Feb 2013 23:25:34 +0100
Subject: [PATCH] --- yaml --- r: 349665 b: refs/heads/master c:
 600485edaef65d89f5c44ce62baa7cac961cd50d h: refs/heads/master i:   349663:
 23c84be3f91f62a52b3004ee9fefcfe26e9934dc v: v3

---
 [refs]                          |  2 +-
 trunk/drivers/ssb/driver_gpio.c | 12 ++++++++++++
 trunk/drivers/ssb/main.c        |  9 +++++++++
 trunk/drivers/ssb/ssb_private.h |  5 +++++
 4 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 279b6c1f05d5..be8e3daac9d1 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c50ae9470e542862f782e2d9c106270152bbf3ce
+refs/heads/master: 600485edaef65d89f5c44ce62baa7cac961cd50d
diff --git a/trunk/drivers/ssb/driver_gpio.c b/trunk/drivers/ssb/driver_gpio.c
index 97ac0a38e3d0..eb2753008ef0 100644
--- a/trunk/drivers/ssb/driver_gpio.c
+++ b/trunk/drivers/ssb/driver_gpio.c
@@ -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;
+}
diff --git a/trunk/drivers/ssb/main.c b/trunk/drivers/ssb/main.c
index c82c5c95fe85..7140c88738f4 100644
--- a/trunk/drivers/ssb/main.c
+++ b/trunk/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/trunk/drivers/ssb/ssb_private.h b/trunk/drivers/ssb/ssb_private.h
index 6c10b66c796c..da38305a2d22 100644
--- a/trunk/drivers/ssb/ssb_private.h
+++ b/trunk/drivers/ssb/ssb_private.h
@@ -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_ */