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>

1 files changed, 6 insertions, 6 deletions

diff --git a/drivers/block/swim3.c b/drivers/block/swim3.c
index 523ee8fd4c15..c264f2d284a7 100644
--- a/drivers/block/swim3.c
+++ b/drivers/block/swim3.c
@@ -440,9 +440,9 @@ static inline void seek_track(struct floppy_state *fs, int n)
 static inline void init_dma(struct dbdma_cmd *cp, int cmd,
 			    void *buf, int count)
 {
-	st_le16(&cp->req_count, count);
-	st_le16(&cp->command, cmd);
-	st_le32(&cp->phy_addr, virt_to_bus(buf));
+	cp->req_count = cpu_to_le16(count);
+	cp->command = cpu_to_le16(cmd);
+	cp->phy_addr = cpu_to_le32(virt_to_bus(buf));
 	cp->xfer_status = 0;
 }
 
@@ -771,8 +771,8 @@ static irqreturn_t swim3_interrupt(int irq, void *dev_id)
 		}
 		/* turn off DMA */
 		out_le32(&dr->control, (RUN | PAUSE) << 16);
-		stat = ld_le16(&cp->xfer_status);
-		resid = ld_le16(&cp->res_count);
+		stat = le16_to_cpu(cp->xfer_status);
+		resid = le16_to_cpu(cp->res_count);
 		if (intr & ERROR_INTR) {
 			n = fs->scount - 1 - resid / 512;
 			if (n > 0) {
@@ -1170,7 +1170,7 @@ static int swim3_add_device(struct macio_dev *mdev, int index)
 
 	fs->dma_cmd = (struct dbdma_cmd *) DBDMA_ALIGN(fs->dbdma_cmd_space);
 	memset(fs->dma_cmd, 0, 2 * sizeof(struct dbdma_cmd));
-	st_le16(&fs->dma_cmd[1].command, DBDMA_STOP);
+	fs->dma_cmd[1].command = cpu_to_le16(DBDMA_STOP);
 
 	if (mdev->media_bay == NULL || check_media_bay(mdev->media_bay) == MB_FD)
 		swim3_mb_event(mdev, MB_FD);