On Sun, 2007-07-22 at 20:33 +0200, Bartlomiej Zolnierkiewicz wrote:
> * 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@xxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
> ---
> drivers/ide/ide-iops.c | 31 +------------------------------
> drivers/ide/ppc/pmac.c | 9 +++++----
> include/linux/ide.h | 2 +-
> 3 files changed, 7 insertions(+), 35 deletions(-)
>
> Index: b/drivers/ide/ide-iops.c
> ===================================================================
> --- 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,
> * 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;
> Index: b/drivers/ide/ppc/pmac.c
> ===================================================================
> --- a/drivers/ide/ppc/pmac.c
> +++ b/drivers/ide/ppc/pmac.c
> @@ -540,7 +540,8 @@ static int
> pmac_ide_do_setfeature(ide_drive_t *drive, u8 command)
> {
> ide_hwif_t *hwif = HWIF(drive);
> - int result = 1;
> + int result;
> + u8 stat;
>
> disable_irq_nosync(hwif->irq);
> udelay(1);
> @@ -551,9 +552,9 @@ pmac_ide_do_setfeature(ide_drive_t *driv
> hwif->OUTB(command, IDE_NSECTOR_REG);
> hwif->OUTB(SETFEATURES_XFER, IDE_FEATURE_REG);
> hwif->OUTBSYNC(drive, WIN_SETFEATURES, IDE_COMMAND_REG);
> - udelay(1);
> - /* Timeout bumped for some powerbooks */
> - result = wait_for_ready(drive, 2000);
> + result = __ide_wait_stat(drive, drive->ready_stat,
> + BUSY_STAT|DRQ_STAT|ERR_STAT,
> + WAIT_CMD, &stat);
> hwif->OUTB(drive->ctl, IDE_CONTROL_REG);
> if (result)
> printk(KERN_ERR "%s: pmac_ide_do_setfeature disk not ready "
> Index: b/include/linux/ide.h
> ===================================================================
> --- a/include/linux/ide.h
> +++ b/include/linux/ide.h
> @@ -1152,7 +1152,7 @@ extern void SELECT_MASK(ide_drive_t *, i
> extern void QUIRK_LIST(ide_drive_t *);
>
> extern int drive_is_ready(ide_drive_t *);
> -extern int wait_for_ready(ide_drive_t *, int /* timeout */);
> +int __ide_wait_stat(ide_drive_t *, u8, u8, unsigned long);
>
> /*
> * taskfile io for disks for now...and builds request from ide_ioctl
-
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