commit aa2731ad9ad80ac3fca48bd1c4cf0eceede4810e
author Tejun Heo <htejun@gmail.com> Mon Apr 07 22:47:19 2008 +0900
committer Jeff Garzik <jgarzik@redhat.com> Thu Apr 17 15:44:22 2008 -0400
tree db6d3327017b9b84355aba49a5ccd5c322d3f248
parent 705e76beb90b97421e1f61e857c4246799781bb5

libata: separate out ata_wait_ready() and implement ata_wait_after_reset()

Factor out waiting logic (which is common to all ATA controllers) from
ata_sff_wait_ready() into ata_wait_ready().  ata_wait_ready() takes
@check_ready function pointer and uses it to poll for readiness.  This
allows non-SFF controllers to use ata_wait_ready() to wait for link
readiness.

This patch also implements ata_wait_after_reset() - generic version of
ata_sff_wait_after_reset() - using ata_wait_ready().

ata_sff_wait_ready() is reimplemented using ata_wait_ready() and
ata_sff_check_ready().  Functionality remains the same.

Signed-off-by: Tejun Heo <htejun@gmail.com>

include/linux/libata.h

diff --git a/include/linux/libata.h b/include/linux/libata.h
index da55602..4bbf252 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -837,6 +837,8 @@
 extern void ata_port_probe(struct ata_port *);
 extern int sata_set_spd(struct ata_link *link);
 extern int ata_std_prereset(struct ata_link *link, unsigned long deadline);
+extern int ata_wait_after_reset(struct ata_link *link, unsigned long deadline,
+				int (*check_ready)(struct ata_link *link));
 extern int sata_link_debounce(struct ata_link *link,
 			const unsigned long *params, unsigned long deadline);
 extern int sata_link_resume(struct ata_link *link, const unsigned long *params,