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Diffstat (limited to 'drivers/base/platform.c')
-rw-r--r--drivers/base/platform.c68
1 files changed, 41 insertions, 27 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 8827dafba945..0f81731bdfa8 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -25,6 +25,7 @@
struct device platform_bus = {
.bus_id = "platform",
};
+EXPORT_SYMBOL_GPL(platform_bus);
/**
* platform_get_resource - get a resource for a device
@@ -49,6 +50,7 @@ platform_get_resource(struct platform_device *dev, unsigned int type,
}
return NULL;
}
+EXPORT_SYMBOL_GPL(platform_get_resource);
/**
* platform_get_irq - get an IRQ for a device
@@ -61,6 +63,7 @@ int platform_get_irq(struct platform_device *dev, unsigned int num)
return r ? r->start : 0;
}
+EXPORT_SYMBOL_GPL(platform_get_irq);
/**
* platform_get_resource_byname - get a resource for a device by name
@@ -84,6 +87,7 @@ platform_get_resource_byname(struct platform_device *dev, unsigned int type,
}
return NULL;
}
+EXPORT_SYMBOL_GPL(platform_get_resource_byname);
/**
* platform_get_irq - get an IRQ for a device
@@ -96,6 +100,7 @@ int platform_get_irq_byname(struct platform_device *dev, char *name)
return r ? r->start : 0;
}
+EXPORT_SYMBOL_GPL(platform_get_irq_byname);
/**
* platform_add_devices - add a numbers of platform devices
@@ -117,6 +122,7 @@ int platform_add_devices(struct platform_device **devs, int num)
return ret;
}
+EXPORT_SYMBOL_GPL(platform_add_devices);
struct platform_object {
struct platform_device pdev;
@@ -168,7 +174,7 @@ struct platform_device *platform_device_alloc(const char *name, unsigned int id)
pa->pdev.dev.release = platform_device_release;
}
- return pa ? &pa->pdev : NULL;
+ return pa ? &pa->pdev : NULL;
}
EXPORT_SYMBOL_GPL(platform_device_alloc);
@@ -257,7 +263,7 @@ int platform_device_add(struct platform_device *pdev)
p = &ioport_resource;
}
- if (p && request_resource(p, r)) {
+ if (p && insert_resource(p, r)) {
printk(KERN_ERR
"%s: failed to claim resource %d\n",
pdev->dev.bus_id, i);
@@ -282,24 +288,13 @@ int platform_device_add(struct platform_device *pdev)
EXPORT_SYMBOL_GPL(platform_device_add);
/**
- * platform_device_register - add a platform-level device
- * @pdev: platform device we're adding
- *
- */
-int platform_device_register(struct platform_device * pdev)
-{
- device_initialize(&pdev->dev);
- return platform_device_add(pdev);
-}
-
-/**
- * platform_device_unregister - remove a platform-level device
+ * platform_device_del - remove a platform-level device
* @pdev: platform device we're removing
*
* Note that this function will also release all memory- and port-based
* resources owned by the device (@dev->resource).
*/
-void platform_device_unregister(struct platform_device * pdev)
+void platform_device_del(struct platform_device *pdev)
{
int i;
@@ -310,9 +305,37 @@ void platform_device_unregister(struct platform_device * pdev)
release_resource(r);
}
- device_unregister(&pdev->dev);
+ device_del(&pdev->dev);
}
}
+EXPORT_SYMBOL_GPL(platform_device_del);
+
+/**
+ * platform_device_register - add a platform-level device
+ * @pdev: platform device we're adding
+ *
+ */
+int platform_device_register(struct platform_device * pdev)
+{
+ device_initialize(&pdev->dev);
+ return platform_device_add(pdev);
+}
+EXPORT_SYMBOL_GPL(platform_device_register);
+
+/**
+ * platform_device_unregister - unregister a platform-level device
+ * @pdev: platform device we're unregistering
+ *
+ * Unregistration is done in 2 steps. Fisrt we release all resources
+ * and remove it from the sybsystem, then we drop reference count by
+ * calling platform_device_put().
+ */
+void platform_device_unregister(struct platform_device * pdev)
+{
+ platform_device_del(pdev);
+ platform_device_put(pdev);
+}
+EXPORT_SYMBOL_GPL(platform_device_unregister);
/**
* platform_device_register_simple
@@ -355,6 +378,7 @@ error:
platform_device_put(pdev);
return ERR_PTR(retval);
}
+EXPORT_SYMBOL_GPL(platform_device_register_simple);
static int platform_drv_probe(struct device *_dev)
{
@@ -476,6 +500,7 @@ struct bus_type platform_bus_type = {
.suspend = platform_suspend,
.resume = platform_resume,
};
+EXPORT_SYMBOL_GPL(platform_bus_type);
int __init platform_bus_init(void)
{
@@ -504,14 +529,3 @@ u64 dma_get_required_mask(struct device *dev)
}
EXPORT_SYMBOL_GPL(dma_get_required_mask);
#endif
-
-EXPORT_SYMBOL_GPL(platform_bus);
-EXPORT_SYMBOL_GPL(platform_bus_type);
-EXPORT_SYMBOL_GPL(platform_add_devices);
-EXPORT_SYMBOL_GPL(platform_device_register);
-EXPORT_SYMBOL_GPL(platform_device_register_simple);
-EXPORT_SYMBOL_GPL(platform_device_unregister);
-EXPORT_SYMBOL_GPL(platform_get_irq);
-EXPORT_SYMBOL_GPL(platform_get_resource);
-EXPORT_SYMBOL_GPL(platform_get_irq_byname);
-EXPORT_SYMBOL_GPL(platform_get_resource_byname);