[POWERPC] powermac: Use machine_*_initcall() hooks in platform code

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/platforms/powermac/low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c
index 864fbf4..21226b7 100644
--- a/arch/powerpc/platforms/powermac/low_i2c.c
+++ b/arch/powerpc/platforms/powermac/low_i2c.c
@@ -1461,9 +1461,6 @@
 		return 0;
 	i2c_inited = 1;
 
-	if (!machine_is(powermac))
-		return 0;
-
 	/* Probe keywest-i2c busses */
 	kw_i2c_probe();
 
@@ -1482,7 +1479,7 @@
 
 	return 0;
 }
-arch_initcall(pmac_i2c_init);
+machine_arch_initcall(powermac, pmac_i2c_init);
 
 /* Since pmac_i2c_init can be called too early for the platform device
  * registration, we need to do it at a later time. In our case, subsys
@@ -1514,4 +1511,4 @@
 
 	return 0;
 }
-subsys_initcall(pmac_i2c_create_platform_devices);
+machine_subsys_initcall(powermac, pmac_i2c_create_platform_devices);