powerpc: Move Power Macintosh drivers to generic byteswappers

ppc has special instruction forms to efficiently load and store values
in non-native endianness.  These can be accessed via the arch-specific
{ld,st}_le{16,32}() inlines in arch/powerpc/include/asm/swab.h.

However, gcc is perfectly capable of generating the byte-reversing
load/store instructions when using the normal, generic cpu_to_le*() and
le*_to_cpu() functions eaning the arch-specific functions don't have much
point.

Worse the "le" in the names of the arch specific functions is now
misleading, because they always generate byte-reversing forms, but some
ppc machines can now run a little-endian kernel.

To start getting rid of the arch-specific forms, this patch removes them
from all the old Power Macintosh drivers, replacing them with the
generic byteswappers.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

2 files changed, 8 insertions, 8 deletions

diff --git a/arch/powerpc/include/asm/dbdma.h b/arch/powerpc/include/asm/dbdma.h
index e23f07e73cb3..6c69836b4ec2 100644
--- a/arch/powerpc/include/asm/dbdma.h
+++ b/arch/powerpc/include/asm/dbdma.h
@@ -42,12 +42,12 @@ struct dbdma_regs {
  * DBDMA command structure.  These fields are all little-endian!
  */
 struct dbdma_cmd {
-    unsigned short req_count;   /* requested byte transfer count */
-    unsigned short command;     /* command word (has bit-fields) */
-    unsigned int   phy_addr;    /* physical data address */
-    unsigned int   cmd_dep;     /* command-dependent field */
-    unsigned short res_count;   /* residual count after completion */
-    unsigned short xfer_status; /* transfer status */
+        __le16 req_count;       /* requested byte transfer count */
+        __le16 command;         /* command word (has bit-fields) */
+        __le32 phy_addr;        /* physical data address */
+        __le32 cmd_dep;         /* command-dependent field */
+        __le16 res_count;       /* residual count after completion */
+        __le16 xfer_status;     /* transfer status */
 };
 
 /* DBDMA command values in command field */
diff --git a/arch/powerpc/include/asm/vga.h b/arch/powerpc/include/asm/vga.h
index e5f8dd366212..ab3acd2f2786 100644
--- a/arch/powerpc/include/asm/vga.h
+++ b/arch/powerpc/include/asm/vga.h
@@ -25,12 +25,12 @@
 
 static inline void scr_writew(u16 val, volatile u16 *addr)
 {
-    st_le16(addr, val);
+        *addr = cpu_to_le16(val);
 }
 
 static inline u16 scr_readw(volatile const u16 *addr)
 {
-    return ld_le16(addr);
+        return le16_to_cpu(*addr);
 }
 
 #define VT_BUF_HAVE_MEMCPYW