ide: IORDY handling fixes

Add ide_pio_need_iordy() helper and convert host drivers to use it.

This fixes it8172, it8213, pdc202xx_old, piix, slc90e66 and siimage
host drivers to handle IORDY correctly.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/ide/slc90e66.c b/drivers/ide/slc90e66.c
index f55d7d6313e8..9aec78d3bcff 100644
--- a/drivers/ide/slc90e66.c
+++ b/drivers/ide/slc90e66.c
@@ -44,7 +44,7 @@ static void slc90e66_set_pio_mode(ide_drive_t *drive, const u8 pio)
                 control |= 1;   /* Programmable timing on */
         if (drive->media == ide_disk)
                 control |= 4;   /* Prefetch, post write */
-        if (pio > 2)
+        if (ide_pio_need_iordy(drive, pio))
                 control |= 2;   /* IORDY */
         if (is_slave) {
                 master_data |=  0x4000;