ide: move ide_rate_filter() calls to the upper layer (take 2)

* Move ide_rate_filter() calls from host drivers to IDE core.

* Make ide_rate_filter() static.

* Make 'speed' argument of ->speedproc const.

v2:
* Fix it8213_tune_chipset() comment.

There should be no functionality changes caused by this patch.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 3 insertions, 5 deletions

diff --git a/drivers/ide/pci/atiixp.c b/drivers/ide/pci/atiixp.c
index 679eb92b8920..e05e88298500 100644
--- a/drivers/ide/pci/atiixp.c
+++ b/drivers/ide/pci/atiixp.c
@@ -163,23 +163,21 @@ static void atiixp_tuneproc(ide_drive_t *drive, u8 pio)
 /**
  *      atiixp_tune_chipset     -       tune a ATIIXP interface
  *      @drive: IDE drive to tune
- *      @xferspeed: speed to configure
+ *      @speed: speed to configure
  *
  *      Set a ATIIXP interface channel to the desired speeds. This involves
  *      requires the right timing data into the ATIIXP configuration space
  *      then setting the drive parameters appropriately
  */
 
-static int atiixp_speedproc(ide_drive_t *drive, u8 xferspeed)
+static int atiixp_speedproc(ide_drive_t *drive, const u8 speed)
 {
         struct pci_dev *dev = drive->hwif->pci_dev;
         unsigned long flags;
         int timing_shift = (drive->dn & 2) ? 16 : 0 + (drive->dn & 1) ? 0 : 8;
         u32 tmp32;
         u16 tmp16;
-        u8 speed, pio;
-
-        speed = ide_rate_filter(drive, xferspeed);
+        u8 pio;
 
         if (speed >= XFER_PIO_0 && speed <= XFER_PIO_4) {
                 atiixp_tune_pio(drive, speed - XFER_PIO_0);