[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>
diff --git a/include/linux/libata.h b/include/linux/libata.h
index a43c95f..af66244 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -499,6 +499,8 @@
/*
* 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 *,
