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authorGrant Likely <grant.likely@secretlab.ca>2010-06-08 07:48:21 -0600
committerGrant Likely <grant.likely@secretlab.ca>2010-07-24 09:57:51 -0600
commiteca3930163ba8884060ce9d9ff5ef0d9b7c7b00f (patch)
tree5774d6d53b5f7d8f069e82b3937cdff7b3d45bbe /arch/sparc/kernel
parent05212157e94ccf4cf458413bbba509cfa95ff92b (diff)
downloadlinux-eca3930163ba8884060ce9d9ff5ef0d9b7c7b00f.tar.gz
of: Merge of_platform_bus_type with platform_bus_type
of_platform_bus was being used in the same manner as the platform_bus. The only difference being that of_platform_bus devices are generated from data in the device tree, and platform_bus devices are usually statically allocated in platform code. Having them separate causes the problem of device drivers having to be registered twice if it was possible for the same device to appear on either bus. This patch removes of_platform_bus_type and registers all of_platform bus devices and drivers on the platform bus instead. A previous patch made the of_device structure an alias for the platform_device structure, and a shim is used to adapt of_platform_drivers to the platform bus. After all of of_platform_bus drivers are converted to be normal platform drivers, the shim code can be removed. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/kernel')
-rw-r--r--arch/sparc/kernel/of_device_32.c21
-rw-r--r--arch/sparc/kernel/of_device_64.c21
-rw-r--r--arch/sparc/kernel/of_device_common.c3
3 files changed, 10 insertions, 35 deletions
diff --git a/arch/sparc/kernel/of_device_32.c b/arch/sparc/kernel/of_device_32.c
index 331de91ad2bc..75fc9d5cd7e6 100644
--- a/arch/sparc/kernel/of_device_32.c
+++ b/arch/sparc/kernel/of_device_32.c
@@ -424,7 +424,7 @@ build_resources:
build_device_resources(op, parent);
op->dev.parent = parent;
- op->dev.bus = &of_platform_bus_type;
+ op->dev.bus = &platform_bus_type;
if (!parent)
dev_set_name(&op->dev, "root");
else
@@ -452,30 +452,19 @@ static void __init scan_tree(struct device_node *dp, struct device *parent)
}
}
-static void __init scan_of_devices(void)
+static int __init scan_of_devices(void)
{
struct device_node *root = of_find_node_by_path("/");
struct of_device *parent;
parent = scan_one_device(root, NULL);
if (!parent)
- return;
+ return 0;
scan_tree(root->child, &parent->dev);
+ return 0;
}
-
-static int __init of_bus_driver_init(void)
-{
- int err;
-
- err = of_bus_type_init(&of_platform_bus_type, "of");
- if (!err)
- scan_of_devices();
-
- return err;
-}
-
-postcore_initcall(of_bus_driver_init);
+postcore_initcall(scan_of_devices);
static int __init of_debug(char *str)
{
diff --git a/arch/sparc/kernel/of_device_64.c b/arch/sparc/kernel/of_device_64.c
index 5e8cbb942d3d..9743d1d9fa03 100644
--- a/arch/sparc/kernel/of_device_64.c
+++ b/arch/sparc/kernel/of_device_64.c
@@ -667,7 +667,7 @@ static struct of_device * __init scan_one_device(struct device_node *dp,
op->archdata.irqs[i] = build_one_device_irq(op, parent, op->archdata.irqs[i]);
op->dev.parent = parent;
- op->dev.bus = &of_platform_bus_type;
+ op->dev.bus = &platform_bus_type;
if (!parent)
dev_set_name(&op->dev, "root");
else
@@ -695,30 +695,19 @@ static void __init scan_tree(struct device_node *dp, struct device *parent)
}
}
-static void __init scan_of_devices(void)
+static int __init scan_of_devices(void)
{
struct device_node *root = of_find_node_by_path("/");
struct of_device *parent;
parent = scan_one_device(root, NULL);
if (!parent)
- return;
+ return 0;
scan_tree(root->child, &parent->dev);
+ return 0;
}
-
-static int __init of_bus_driver_init(void)
-{
- int err;
-
- err = of_bus_type_init(&of_platform_bus_type, "of");
- if (!err)
- scan_of_devices();
-
- return err;
-}
-
-postcore_initcall(of_bus_driver_init);
+postcore_initcall(scan_of_devices);
static int __init of_debug(char *str)
{
diff --git a/arch/sparc/kernel/of_device_common.c b/arch/sparc/kernel/of_device_common.c
index 016c947d4cae..01f380c7995c 100644
--- a/arch/sparc/kernel/of_device_common.c
+++ b/arch/sparc/kernel/of_device_common.c
@@ -64,9 +64,6 @@ void of_propagate_archdata(struct of_device *bus)
}
}
-struct bus_type of_platform_bus_type;
-EXPORT_SYMBOL(of_platform_bus_type);
-
static void get_cells(struct device_node *dp, int *addrc, int *sizec)
{
if (addrc)