[PATCH] libata: add a function to decide if we need iordy

This ought to be simple but for PIO2 we have to poke around the drive
data to get it 100% correct.

Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/libata.h b/include/linux/libata.h
index a43c95f8f968..af6624450f65 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -499,6 +499,8 @@ extern int ata_scsi_slave_config(struct scsi_device *sdev);
 /*
  * Timing helpers
  */
+
+extern unsigned int ata_pio_need_iordy(const struct ata_device *);
 extern int ata_timing_compute(struct ata_device *, unsigned short,
                               struct ata_timing *, int, int);
 extern void ata_timing_merge(const struct ata_timing *,