[POWERPC] ps3: repository misc fixes

Various fixes for the PS3 repository code:

  - Sync signatures of function prototypes and implementations (enum vs.
    unsigned int)
  - Correct references to `regions' as `registers':
      o Correct enum ps3_region_type as enum ps3_reg_type,
      o Correct PS3_REGION_TYPE_* as PS3_REG_TYPE_*,
      o Correct ps3_repository_find_region() as ps3_repository_find_reg().
  - Correct function name in pr_debug() call
  - Minor error condition improvements.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

2 files changed, 27 insertions, 21 deletions

diff --git a/arch/powerpc/platforms/ps3/repository.c b/arch/powerpc/platforms/ps3/repository.c
index 273a0d621bdd..9ef31a5b7035 100644
--- a/arch/powerpc/platforms/ps3/repository.c
+++ b/arch/powerpc/platforms/ps3/repository.c
@@ -257,7 +257,7 @@ int ps3_repository_read_dev_type(unsigned int bus_index,
 
 int ps3_repository_read_dev_intr(unsigned int bus_index,
         unsigned int dev_index, unsigned int intr_index,
-        unsigned int *intr_type, unsigned int* interrupt_id)
+        enum ps3_interrupt_type *intr_type, unsigned int* interrupt_id)
 {
         int result;
         u64 v1;
@@ -275,7 +275,8 @@ int ps3_repository_read_dev_intr(unsigned int bus_index,
 }
 
 int ps3_repository_read_dev_reg_type(unsigned int bus_index,
-        unsigned int dev_index, unsigned int reg_index, unsigned int *reg_type)
+        unsigned int dev_index, unsigned int reg_index,
+        enum ps3_reg_type *reg_type)
 {
         int result;
         u64 v1;
@@ -302,8 +303,8 @@ int ps3_repository_read_dev_reg_addr(unsigned int bus_index,
 }
 
 int ps3_repository_read_dev_reg(unsigned int bus_index,
-        unsigned int dev_index, unsigned int reg_index, unsigned int *reg_type,
-        u64 *bus_addr, u64 *len)
+        unsigned int dev_index, unsigned int reg_index,
+        enum ps3_reg_type *reg_type, u64 *bus_addr, u64 *len)
 {
         int result = ps3_repository_read_dev_reg_type(bus_index, dev_index,
                 reg_index, reg_type);
@@ -343,7 +344,7 @@ int ps3_repository_dump_resource_info(unsigned int bus_index,
         }
 
         for (res_index = 0; res_index < 10; res_index++) {
-                enum ps3_region_type reg_type;
+                enum ps3_reg_type reg_type;
                 u64 bus_addr;
                 u64 len;
 
@@ -487,7 +488,8 @@ static int find_device(unsigned int bus_index, unsigned int num_dev,
                         break;
         }
 
-        BUG_ON(dev_index == num_dev);
+        if (dev_index == num_dev)
+                return -1;
 
         pr_debug("%s:%d: found dev_type %u at dev_index %u\n",
                 __func__, __LINE__, dev_type, dev_index);
@@ -521,7 +523,7 @@ int ps3_repository_find_device (enum ps3_bus_type bus_type,
         pr_debug("%s:%d: find bus_type %u, dev_type %u\n", __func__, __LINE__,
                 bus_type, dev_type);
 
-        dev->bus_index = UINT_MAX;
+        BUG_ON(start_dev && start_dev->bus_index > 10);
 
         for (bus_index = start_dev ? start_dev->bus_index : 0; bus_index < 10;
                 bus_index++) {
@@ -532,13 +534,15 @@ int ps3_repository_find_device (enum ps3_bus_type bus_type,
                 if (result) {
                         pr_debug("%s:%d read_bus_type failed\n",
                                 __func__, __LINE__);
+                        dev->bus_index = UINT_MAX;
                         return result;
                 }
                 if (x == bus_type)
                         break;
         }
 
-        BUG_ON(bus_index == 10);
+        if (bus_index >= 10)
+                return -ENODEV;
 
         pr_debug("%s:%d: found bus_type %u at bus_index %u\n",
                 __func__, __LINE__, bus_type, bus_index);
@@ -604,7 +608,8 @@ int ps3_repository_find_interrupt(const struct ps3_repository_device *dev,
                 }
         }
 
-        BUG_ON(res_index == 10);
+        if (res_index == 10)
+                return -ENODEV;
 
         pr_debug("%s:%d: found intr_type %u at res_index %u\n",
                 __func__, __LINE__, intr_type, res_index);
@@ -612,8 +617,8 @@ int ps3_repository_find_interrupt(const struct ps3_repository_device *dev,
         return result;
 }
 
-int ps3_repository_find_region(const struct ps3_repository_device *dev,
-        enum ps3_region_type reg_type, u64 *bus_addr, u64 *len)
+int ps3_repository_find_reg(const struct ps3_repository_device *dev,
+        enum ps3_reg_type reg_type, u64 *bus_addr, u64 *len)
 {
         int result = 0;
         unsigned int res_index;
@@ -623,7 +628,7 @@ int ps3_repository_find_region(const struct ps3_repository_device *dev,
         *bus_addr = *len = 0;
 
         for (res_index = 0; res_index < 10; res_index++) {
-                enum ps3_region_type t;
+                enum ps3_reg_type t;
                 u64 a;
                 u64 l;
 
@@ -643,7 +648,8 @@ int ps3_repository_find_region(const struct ps3_repository_device *dev,
                 }
         }
 
-        BUG_ON(res_index == 10);
+        if (res_index == 10)
+                return -ENODEV;
 
         pr_debug("%s:%d: found reg_type %u at res_index %u\n",
                 __func__, __LINE__, reg_type, res_index);
diff --git a/include/asm-powerpc/ps3.h b/include/asm-powerpc/ps3.h
index 52a69ed0d90a..b56aca28b26d 100644
--- a/include/asm-powerpc/ps3.h
+++ b/include/asm-powerpc/ps3.h
@@ -277,10 +277,10 @@ enum ps3_interrupt_type {
         PS3_INTERRUPT_TYPE_OTHER = 5,
 };
 
-enum ps3_region_type {
-        PS3_REGION_TYPE_SB_OHCI = 3,
-        PS3_REGION_TYPE_SB_EHCI = 4,
-        PS3_REGION_TYPE_SB_GPIO = 5,
+enum ps3_reg_type {
+        PS3_REG_TYPE_SB_OHCI = 3,
+        PS3_REG_TYPE_SB_EHCI = 4,
+        PS3_REG_TYPE_SB_GPIO = 5,
 };
 
 int ps3_repository_read_dev_str(unsigned int bus_index,
@@ -294,13 +294,13 @@ int ps3_repository_read_dev_intr(unsigned int bus_index,
         enum ps3_interrupt_type *intr_type, unsigned int *interrupt_id);
 int ps3_repository_read_dev_reg_type(unsigned int bus_index,
         unsigned int dev_index, unsigned int reg_index,
-        enum ps3_region_type *reg_type);
+        enum ps3_reg_type *reg_type);
 int ps3_repository_read_dev_reg_addr(unsigned int bus_index,
         unsigned int dev_index, unsigned int reg_index, u64 *bus_addr,
         u64 *len);
 int ps3_repository_read_dev_reg(unsigned int bus_index,
         unsigned int dev_index, unsigned int reg_index,
-        enum ps3_region_type *reg_type, u64 *bus_addr, u64 *len);
+        enum ps3_reg_type *reg_type, u64 *bus_addr, u64 *len);
 
 /* repository bus enumerators */
 
@@ -322,8 +322,8 @@ static inline int ps3_repository_find_first_device(
 }
 int ps3_repository_find_interrupt(const struct ps3_repository_device *dev,
         enum ps3_interrupt_type intr_type, unsigned int *interrupt_id);
-int ps3_repository_find_region(const struct ps3_repository_device *dev,
-        enum ps3_region_type reg_type, u64 *bus_addr, u64 *len);
+int ps3_repository_find_reg(const struct ps3_repository_device *dev,
+        enum ps3_reg_type reg_type, u64 *bus_addr, u64 *len);
 
 /* repository block device info */