Merge branch 'imx-features-for-arnd' of git://git.pengutronix.de/git/imx/linux-2.6 into imx/devel

Conflicts:
	arch/arm/mach-mx5/clock-mx51-mx53.c
	arch/arm/mach-mx5/devices-imx53.h

6 files changed, 68 insertions, 64 deletions

diff --git a/drivers/base/devres.c b/drivers/base/devres.c
index cf7a0c7..65cd748 100644
--- a/drivers/base/devres.c
+++ b/drivers/base/devres.c
@@ -397,6 +397,7 @@ static int remove_nodes(struct device *dev,
 
 static int release_nodes(struct device *dev, struct list_head *first,
 			 struct list_head *end, unsigned long flags)
+	__releases(&dev->devres_lock)
 {
 	LIST_HEAD(todo);
 	int cnt;
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index 33e1bed..a4760e0 100644
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -376,7 +376,7 @@ int devtmpfs_mount(const char *mntdir)
 	return err;
 }
 
-static __initdata DECLARE_COMPLETION(setup_done);
+static DECLARE_COMPLETION(setup_done);
 
 static int handle(const char *name, mode_t mode, struct device *dev)
 {
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index bbb03e6..06ed6b4 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -521,11 +521,6 @@ static int _request_firmware(const struct firmware **firmware_p,
 	if (!firmware_p)
 		return -EINVAL;
 
-	if (WARN_ON(usermodehelper_is_disabled())) {
-		dev_err(device, "firmware: %s will not be loaded\n", name);
-		return -EBUSY;
-	}
-
 	*firmware_p = firmware = kzalloc(sizeof(*firmware), GFP_KERNEL);
 	if (!firmware) {
 		dev_err(device, "%s: kmalloc(struct firmware) failed\n",
@@ -539,6 +534,12 @@ static int _request_firmware(const struct firmware **firmware_p,
 		return 0;
 	}
 
+	if (WARN_ON(usermodehelper_is_disabled())) {
+		dev_err(device, "firmware: %s will not be loaded\n", name);
+		retval = -EBUSY;
+		goto out;
+	}
+
 	if (uevent)
 		dev_dbg(device, "firmware: requesting %s\n", name);
 
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 0cad9c7..99a5272 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -33,7 +33,7 @@ EXPORT_SYMBOL_GPL(platform_bus);
 
 /**
  * arch_setup_pdev_archdata - Allow manipulation of archdata before its used
- * @dev: platform device
+ * @pdev: platform device
  *
  * This is called before platform_device_add() such that any pdev_archdata may
  * be setup before the platform_notifier is called.  So if a user needs to
diff --git a/drivers/base/power/clock_ops.c b/drivers/base/power/clock_ops.c
index a846b2f..b97294e 100644
--- a/drivers/base/power/clock_ops.c
+++ b/drivers/base/power/clock_ops.c
@@ -19,7 +19,7 @@
 
 struct pm_clk_data {
 	struct list_head clock_list;
-	struct mutex lock;
+	spinlock_t lock;
 };
 
 enum pce_status {
@@ -42,6 +42,22 @@ static struct pm_clk_data *__to_pcd(struct device *dev)
 }
 
 /**
+ * pm_clk_acquire - Acquire a device clock.
+ * @dev: Device whose clock is to be acquired.
+ * @ce: PM clock entry corresponding to the clock.
+ */
+static void pm_clk_acquire(struct device *dev, struct pm_clock_entry *ce)
+{
+	ce->clk = clk_get(dev, ce->con_id);
+	if (IS_ERR(ce->clk)) {
+		ce->status = PCE_STATUS_ERROR;
+	} else {
+		ce->status = PCE_STATUS_ACQUIRED;
+		dev_dbg(dev, "Clock %s managed by runtime PM.\n", ce->con_id);
+	}
+}
+
+/**
  * pm_clk_add - Start using a device clock for power management.
  * @dev: Device whose clock is going to be used for power management.
  * @con_id: Connection ID of the clock.
@@ -73,26 +89,23 @@ int pm_clk_add(struct device *dev, const char *con_id)
 		}
 	}
 
-	mutex_lock(&pcd->lock);
+	pm_clk_acquire(dev, ce);
+
+	spin_lock_irq(&pcd->lock);
 	list_add_tail(&ce->node, &pcd->clock_list);
-	mutex_unlock(&pcd->lock);
+	spin_unlock_irq(&pcd->lock);
 	return 0;
 }
 
 /**
  * __pm_clk_remove - Destroy PM clock entry.
  * @ce: PM clock entry to destroy.
- *
- * This routine must be called under the mutex protecting the PM list of clocks
- * corresponding the the @ce's device.
  */
 static void __pm_clk_remove(struct pm_clock_entry *ce)
 {
 	if (!ce)
 		return;
 
-	list_del(&ce->node);
-
 	if (ce->status < PCE_STATUS_ERROR) {
 		if (ce->status == PCE_STATUS_ENABLED)
 			clk_disable(ce->clk);
@@ -123,21 +136,25 @@ void pm_clk_remove(struct device *dev, const char *con_id)
 	if (!pcd)
 		return;
 
-	mutex_lock(&pcd->lock);
+	spin_lock_irq(&pcd->lock);
 
 	list_for_each_entry(ce, &pcd->clock_list, node) {
-		if (!con_id && !ce->con_id) {
-			__pm_clk_remove(ce);
-			break;
-		} else if (!con_id || !ce->con_id) {
+		if (!con_id && !ce->con_id)
+			goto remove;
+		else if (!con_id || !ce->con_id)
 			continue;
-		} else if (!strcmp(con_id, ce->con_id)) {
-			__pm_clk_remove(ce);
-			break;
-		}
+		else if (!strcmp(con_id, ce->con_id))
+			goto remove;
 	}
 
-	mutex_unlock(&pcd->lock);
+	spin_unlock_irq(&pcd->lock);
+	return;
+
+ remove:
+	list_del(&ce->node);
+	spin_unlock_irq(&pcd->lock);
+
+	__pm_clk_remove(ce);
 }
 
 /**
@@ -158,7 +175,7 @@ int pm_clk_init(struct device *dev)
 	}
 
 	INIT_LIST_HEAD(&pcd->clock_list);
-	mutex_init(&pcd->lock);
+	spin_lock_init(&pcd->lock);
 	dev->power.subsys_data = pcd;
 	return 0;
 }
@@ -175,20 +192,27 @@ void pm_clk_destroy(struct device *dev)
 {
 	struct pm_clk_data *pcd = __to_pcd(dev);
 	struct pm_clock_entry *ce, *c;
+	struct list_head list;
 
 	if (!pcd)
 		return;
 
 	dev->power.subsys_data = NULL;
+	INIT_LIST_HEAD(&list);
 
-	mutex_lock(&pcd->lock);
+	spin_lock_irq(&pcd->lock);
 
 	list_for_each_entry_safe_reverse(ce, c, &pcd->clock_list, node)
-		__pm_clk_remove(ce);
+		list_move(&ce->node, &list);
 
-	mutex_unlock(&pcd->lock);
+	spin_unlock_irq(&pcd->lock);
 
 	kfree(pcd);
+
+	list_for_each_entry_safe_reverse(ce, c, &list, node) {
+		list_del(&ce->node);
+		__pm_clk_remove(ce);
+	}
 }
 
 #endif /* CONFIG_PM */
@@ -196,23 +220,6 @@ void pm_clk_destroy(struct device *dev)
 #ifdef CONFIG_PM_RUNTIME
 
 /**
- * pm_clk_acquire - Acquire a device clock.
- * @dev: Device whose clock is to be acquired.
- * @con_id: Connection ID of the clock.
- */
-static void pm_clk_acquire(struct device *dev,
-				    struct pm_clock_entry *ce)
-{
-	ce->clk = clk_get(dev, ce->con_id);
-	if (IS_ERR(ce->clk)) {
-		ce->status = PCE_STATUS_ERROR;
-	} else {
-		ce->status = PCE_STATUS_ACQUIRED;
-		dev_dbg(dev, "Clock %s managed by runtime PM.\n", ce->con_id);
-	}
-}
-
-/**
  * pm_clk_suspend - Disable clocks in a device's PM clock list.
  * @dev: Device to disable the clocks for.
  */
@@ -220,25 +227,23 @@ int pm_clk_suspend(struct device *dev)
 {
 	struct pm_clk_data *pcd = __to_pcd(dev);
 	struct pm_clock_entry *ce;
+	unsigned long flags;
 
 	dev_dbg(dev, "%s()\n", __func__);
 
 	if (!pcd)
 		return 0;
 
-	mutex_lock(&pcd->lock);
+	spin_lock_irqsave(&pcd->lock, flags);
 
 	list_for_each_entry_reverse(ce, &pcd->clock_list, node) {
-		if (ce->status == PCE_STATUS_NONE)
-			pm_clk_acquire(dev, ce);
-
 		if (ce->status < PCE_STATUS_ERROR) {
 			clk_disable(ce->clk);
 			ce->status = PCE_STATUS_ACQUIRED;
 		}
 	}
 
-	mutex_unlock(&pcd->lock);
+	spin_unlock_irqrestore(&pcd->lock, flags);
 
 	return 0;
 }
@@ -251,25 +256,23 @@ int pm_clk_resume(struct device *dev)
 {
 	struct pm_clk_data *pcd = __to_pcd(dev);
 	struct pm_clock_entry *ce;
+	unsigned long flags;
 
 	dev_dbg(dev, "%s()\n", __func__);
 
 	if (!pcd)
 		return 0;
 
-	mutex_lock(&pcd->lock);
+	spin_lock_irqsave(&pcd->lock, flags);
 
 	list_for_each_entry(ce, &pcd->clock_list, node) {
-		if (ce->status == PCE_STATUS_NONE)
-			pm_clk_acquire(dev, ce);
-
 		if (ce->status < PCE_STATUS_ERROR) {
 			clk_enable(ce->clk);
 			ce->status = PCE_STATUS_ENABLED;
 		}
 	}
 
-	mutex_unlock(&pcd->lock);
+	spin_unlock_irqrestore(&pcd->lock, flags);
 
 	return 0;
 }
@@ -344,6 +347,7 @@ int pm_clk_suspend(struct device *dev)
 {
 	struct pm_clk_data *pcd = __to_pcd(dev);
 	struct pm_clock_entry *ce;
+	unsigned long flags;
 
 	dev_dbg(dev, "%s()\n", __func__);
 
@@ -351,12 +355,12 @@ int pm_clk_suspend(struct device *dev)
 	if (!pcd || !dev->driver)
 		return 0;
 
-	mutex_lock(&pcd->lock);
+	spin_lock_irqsave(&pcd->lock, flags);
 
 	list_for_each_entry_reverse(ce, &pcd->clock_list, node)
 		clk_disable(ce->clk);
 
-	mutex_unlock(&pcd->lock);
+	spin_unlock_irqrestore(&pcd->lock, flags);
 
 	return 0;
 }
@@ -369,6 +373,7 @@ int pm_clk_resume(struct device *dev)
 {
 	struct pm_clk_data *pcd = __to_pcd(dev);
 	struct pm_clock_entry *ce;
+	unsigned long flags;
 
 	dev_dbg(dev, "%s()\n", __func__);
 
@@ -376,12 +381,12 @@ int pm_clk_resume(struct device *dev)
 	if (!pcd || !dev->driver)
 		return 0;
 
-	mutex_lock(&pcd->lock);
+	spin_lock_irqsave(&pcd->lock, flags);
 
 	list_for_each_entry(ce, &pcd->clock_list, node)
 		clk_enable(ce->clk);
 
-	mutex_unlock(&pcd->lock);
+	spin_unlock_irqrestore(&pcd->lock, flags);
 
 	return 0;
 }
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 0eef4da..20663f8 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -168,13 +168,11 @@ struct regmap *regmap_init(struct device *dev,
 	map->work_buf = kmalloc(map->format.buf_size, GFP_KERNEL);
 	if (map->work_buf == NULL) {
 		ret = -ENOMEM;
-		goto err_bus;
+		goto err_map;
 	}
 
 	return map;
 
-err_bus:
-	module_put(map->bus->owner);
 err_map:
 	kfree(map);
 err:
@@ -188,7 +186,6 @@ EXPORT_SYMBOL_GPL(regmap_init);
 void regmap_exit(struct regmap *map)
 {
 	kfree(map->work_buf);
-	module_put(map->bus->owner);
 	kfree(map);
 }
 EXPORT_SYMBOL_GPL(regmap_exit);