5 files changed, 26 insertions, 9 deletions

diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index a6398fbe530d..8ed362140452 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -415,6 +415,12 @@ static int pSeries_check_legacy_ioport(unsigned int baseport)
                         return -ENODEV;
                 of_node_put(np);
                 break;
+        case PARALLEL_BASE:
+                np = of_find_node_by_type(NULL, "parallel");
+                if (np == NULL)
+                        return -ENODEV;
+                of_node_put(np);
+                break;
         }
         return 0;
 }
diff --git a/drivers/input/serio/i8042-io.h b/drivers/input/serio/i8042-io.h
index cc21914fbc72..3b4e13b9ce1b 100644
--- a/drivers/input/serio/i8042-io.h
+++ b/drivers/input/serio/i8042-io.h
@@ -67,25 +67,22 @@ static inline int i8042_platform_init(void)
  * On some platforms touching the i8042 data register region can do really
  * bad things. Because of this the region is always reserved on such boxes.
  */
-#if !defined(__sh__) && !defined(__alpha__) && !defined(__mips__) && !defined(CONFIG_PPC_MERGE)
-        if (!request_region(I8042_DATA_REG, 16, "i8042"))
-                return -EBUSY;
-#endif
-
-        i8042_reset = 1;
-
 #if defined(CONFIG_PPC_MERGE)
         if (check_legacy_ioport(I8042_DATA_REG))
-                return -EBUSY;
+                return -ENODEV;
+#endif
+#if !defined(__sh__) && !defined(__alpha__) && !defined(__mips__)
         if (!request_region(I8042_DATA_REG, 16, "i8042"))
                 return -EBUSY;
 #endif
+
+        i8042_reset = 1;
         return 0;
 }
 
 static inline void i8042_platform_exit(void)
 {
-#if !defined(__sh__) && !defined(__alpha__) && !defined(CONFIG_PPC64)
+#if !defined(__sh__) && !defined(__alpha__)
         release_region(I8042_DATA_REG, 16);
 #endif
 }
diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c
index fe800dc0be9f..43894ddec7dc 100644
--- a/drivers/parport/parport_pc.c
+++ b/drivers/parport/parport_pc.c
@@ -3374,6 +3374,10 @@ __setup("parport_init_mode=",parport_init_mode_setup);
 
 static int __init parport_pc_init(void)
 {
+#if defined(CONFIG_PPC_MERGE)
+        if (check_legacy_ioport(PARALLEL_BASE))
+                return -ENODEV;
+#endif
         if (parse_parport_params())
                 return -EINVAL;
 
diff --git a/drivers/pnp/pnpbios/core.c b/drivers/pnp/pnpbios/core.c
index 551f58e29810..81a6c83d89a6 100644
--- a/drivers/pnp/pnpbios/core.c
+++ b/drivers/pnp/pnpbios/core.c
@@ -526,6 +526,10 @@ static int __init pnpbios_init(void)
 {
         int ret;
 
+#if defined(CONFIG_PPC_MERGE)
+        if (check_legacy_ioport(PNPBIOS_BASE))
+                return -ENODEV;
+#endif
         if (pnpbios_disabled || dmi_check_system(pnpbios_dmi_table)) {
                 printk(KERN_INFO "PnPBIOS: Disabled\n");
                 return -ENODEV;
@@ -575,6 +579,10 @@ subsys_initcall(pnpbios_init);
 
 static int __init pnpbios_thread_init(void)
 {
+#if defined(CONFIG_PPC_MERGE)
+        if (check_legacy_ioport(PNPBIOS_BASE))
+                return 0;
+#endif
         if (pnpbios_disabled)
                 return 0;
 #ifdef CONFIG_HOTPLUG
diff --git a/include/asm-powerpc/io.h b/include/asm-powerpc/io.h
index 46bae1cf385b..19b2ec1ec665 100644
--- a/include/asm-powerpc/io.h
+++ b/include/asm-powerpc/io.h
@@ -11,6 +11,8 @@
 
 /* Check of existence of legacy devices */
 extern int check_legacy_ioport(unsigned long base_port);
+#define PARALLEL_BASE   0x378
+#define PNPBIOS_BASE    0xf000  /* only relevant for PReP */
 
 #ifndef CONFIG_PPC64
 #include <asm-ppc/io.h>