[PATCH] ppc64: make the bus matching function platform specific
This patch allows us to have a different bus if matching function for
each platform.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/ppc64/kernel/vio.c b/arch/ppc64/kernel/vio.c
index 4b9e371..8a243ca 100644
--- a/arch/ppc64/kernel/vio.c
+++ b/arch/ppc64/kernel/vio.c
@@ -44,11 +44,8 @@
.dev.bus = &vio_bus_type,
};
-#ifdef CONFIG_PPC_ISERIES
-
-#define device_is_compatible(a, b) 1
-
-#endif
+static int (*is_match)(const struct vio_device_id *id,
+ const struct vio_dev *dev);
/* convert from struct device to struct vio_dev and pass to driver.
* dev->driver has already been set by generic code because vio_bus_match
@@ -133,8 +130,7 @@
DBGENTER();
while (ids->type) {
- if ((strncmp(dev->type, ids->type, strlen(ids->type)) == 0) &&
- device_is_compatible(dev->dev.platform_data, ids->compat))
+ if (is_match(ids, dev))
return ids;
ids++;
}
@@ -168,10 +164,13 @@
/**
* vio_bus_init: - Initialize the virtual IO bus
*/
-int __init vio_bus_init(void)
+int __init vio_bus_init(int (*match_func)(const struct vio_device_id *id,
+ const struct vio_dev *dev))
{
int err;
+ is_match = match_func;
+
err = bus_register(&vio_bus_type);
if (err) {
printk(KERN_ERR "failed to register VIO bus\n");
@@ -193,13 +192,24 @@
#ifdef CONFIG_PPC_PSERIES
/**
+ * vio_match_device_pseries: - Tell if a pSeries VIO device matches a
+ * vio_device_id
+ */
+static int vio_match_device_pseries(const struct vio_device_id *id,
+ const struct vio_dev *dev)
+{
+ return (strncmp(dev->type, id->type, strlen(id->type)) == 0) &&
+ device_is_compatible(dev->dev.platform_data, id->compat);
+}
+
+/**
* vio_bus_init_pseries: - Initialize the pSeries virtual IO bus
*/
static int __init vio_bus_init_pseries(void)
{
int err;
- err = vio_bus_init();
+ err = vio_bus_init(vio_match_device_pseries);
if (err == 0)
probe_bus_pseries();
return err;