ide-pmac: use __ide_wait_stat()

* Use __ide_wait_stat() instead of wait_for_ready() in pmac_ide_do_setfeature().

While at it do following changes to match __ide_wait_stat() call in
ide_config_drive_speed():

* Wait WAIT_CMD time (20 sec) instead of 2 sec for device to clear BUSY_STAT.

* Check DRQ_STAT bit (shouldn't be set for good device status).

Also remove no longer needed wait_for_ready() from ide-iops.c.

Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 1 insertions, 30 deletions

diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index fb524cf175d5..f7e976c0c2f3 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -473,35 +473,6 @@ int drive_is_ready (ide_drive_t *drive)
 EXPORT_SYMBOL(drive_is_ready);
 
 /*
- * Global for All, and taken from ide-pmac.c. Can be called
- * with spinlock held & IRQs disabled, so don't schedule !
- */
-int wait_for_ready (ide_drive_t *drive, int timeout)
-{
-        ide_hwif_t *hwif        = HWIF(drive);
-        u8 stat                 = 0;
-
-        while(--timeout) {
-                stat = hwif->INB(IDE_STATUS_REG);
-                if (!(stat & BUSY_STAT)) {
-                        if (drive->ready_stat == 0)
-                                break;
-                        else if ((stat & drive->ready_stat)||(stat & ERR_STAT))
-                                break;
-                }
-                mdelay(1);
-        }
-        if ((stat & ERR_STAT) || timeout <= 0) {
-                if (stat & ERR_STAT) {
-                        printk(KERN_ERR "%s: wait_for_ready, "
-                                "error status: %x\n", drive->name, stat);
-                }
-                return 1;
-        }
-        return 0;
-}
-
-/*
  * This routine busy-waits for the drive status to be not "busy".
  * It then checks the status for all of the "good" bits and none
  * of the "bad" bits, and if all is okay it returns 0.  All other
@@ -512,7 +483,7 @@ int wait_for_ready (ide_drive_t *drive, int timeout)
  * setting a timer to wake up at half second intervals thereafter,
  * until timeout is achieved, before timing out.
  */
-static int __ide_wait_stat(ide_drive_t *drive, u8 good, u8 bad, unsigned long timeout, u8 *rstat)
+int __ide_wait_stat(ide_drive_t *drive, u8 good, u8 bad, unsigned long timeout, u8 *rstat)
 {
         ide_hwif_t *hwif = drive->hwif;
         unsigned long flags;