[POWERPC] Souped-up of_platform_device support

This patch first splits of_device.c and of_platform.c, the later containing
the bits relative to of_platform_device's. On the "breaks" side of things,
drivers uisng of_platform_device(s) need to include asm/of_platform.h now
and of_(un)register_driver is now of_(un)register_platform_driver.

In addition to a few utility functions to locate of_platform_device(s),
the main new addition is of_platform_bus_probe() which allows the platform
code to trigger an automatic creation of of_platform_devices for a whole
tree of devices.

The function acts based on the type of the various "parent" devices encountered
from a provided root, using either a default known list of bus types that can be
"probed" or a passed-in list. It will only register devices on busses matching
that list, which mean that typically, it will not register PCI devices, as
expected (since they will be picked up by the PCI layer).

This will be used by Cell platforms using 4xx-type IOs in the Axon bridge
and can be used by any embedded-type device as well.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

5 files changed, 13 insertions, 9 deletions

diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index ade25b3fbb3..4f724cdd2ef 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -46,6 +46,7 @@
 #include <asm/abs_addr.h>
 #include <asm/uaccess.h>
 #include <asm/of_device.h>
+#include <asm/of_platform.h>
 
 #define VERSION "0.7"
 #define AUTHOR  "(c) 2005 Benjamin Herrenschmidt, IBM Corp."
@@ -653,7 +654,7 @@ static int __init smu_init_sysfs(void)
 	 * I'm a bit too far from figuring out how that works with those
 	 * new chipsets, but that will come back and bite us
 	 */
-	of_register_driver(&smu_of_platform_driver);
+	of_register_platform_driver(&smu_of_platform_driver);
 	return 0;
 }
 
diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c
index a0f30d0853e..13b953ae8eb 100644
--- a/drivers/macintosh/therm_adt746x.c
+++ b/drivers/macintosh/therm_adt746x.c
@@ -30,7 +30,7 @@
 #include <asm/io.h>
 #include <asm/system.h>
 #include <asm/sections.h>
-#include <asm/of_device.h>
+#include <asm/of_platform.h>
 
 #undef DEBUG
 
diff --git a/drivers/macintosh/therm_pm72.c b/drivers/macintosh/therm_pm72.c
index d00c0c37a12..2e4ad44a863 100644
--- a/drivers/macintosh/therm_pm72.c
+++ b/drivers/macintosh/therm_pm72.c
@@ -129,6 +129,7 @@
 #include <asm/sections.h>
 #include <asm/of_device.h>
 #include <asm/macio.h>
+#include <asm/of_platform.h>
 
 #include "therm_pm72.h"
 
@@ -2236,14 +2237,14 @@ static int __init therm_pm72_init(void)
 		return -ENODEV;
 	}
 
-	of_register_driver(&fcu_of_platform_driver);
+	of_register_platform_driver(&fcu_of_platform_driver);
 	
 	return 0;
 }
 
 static void __exit therm_pm72_exit(void)
 {
-	of_unregister_driver(&fcu_of_platform_driver);
+	of_unregister_platform_driver(&fcu_of_platform_driver);
 
 	if (of_dev)
 		of_device_unregister(of_dev);
diff --git a/drivers/macintosh/therm_windtunnel.c b/drivers/macintosh/therm_windtunnel.c
index 738faab1b22..a1d3a987cb3 100644
--- a/drivers/macintosh/therm_windtunnel.c
+++ b/drivers/macintosh/therm_windtunnel.c
@@ -36,12 +36,13 @@
 #include <linux/i2c.h>
 #include <linux/slab.h>
 #include <linux/init.h>
+
 #include <asm/prom.h>
 #include <asm/machdep.h>
 #include <asm/io.h>
 #include <asm/system.h>
 #include <asm/sections.h>
-#include <asm/of_device.h>
+#include <asm/of_platform.h>
 #include <asm/macio.h>
 
 #define LOG_TEMP		0			/* continously log temperature */
@@ -511,14 +512,14 @@ g4fan_init( void )
 		return -ENODEV;
 	}
 
-	of_register_driver( &therm_of_driver );
+	of_register_platform_driver( &therm_of_driver );
 	return 0;
 }
 
 static void __exit
 g4fan_exit( void )
 {
-	of_unregister_driver( &therm_of_driver );
+	of_unregister_platform_driver( &therm_of_driver );
 
 	if( x.of_dev )
 		of_device_unregister( x.of_dev );
diff --git a/drivers/video/platinumfb.c b/drivers/video/platinumfb.c
index fdb33cd21a2..cb26c6df058 100644
--- a/drivers/video/platinumfb.c
+++ b/drivers/video/platinumfb.c
@@ -34,6 +34,7 @@
 #include <asm/prom.h>
 #include <asm/pgtable.h>
 #include <asm/of_device.h>
+#include <asm/of_platform.h>
 
 #include "macmodes.h"
 #include "platinumfb.h"
@@ -682,14 +683,14 @@ static int __init platinumfb_init(void)
 		return -ENODEV;
 	platinumfb_setup(option);
 #endif
-	of_register_driver(&platinum_driver);
+	of_register_platform_driver(&platinum_driver);
 
 	return 0;
 }
 
 static void __exit platinumfb_exit(void)
 {
-	of_unregister_driver(&platinum_driver);	
+	of_unregister_platform_driver(&platinum_driver);
 }
 
 MODULE_LICENSE("GPL");