libata: increase PMP register access timeout to 3s
commitbf1bff6fa9fdd4e92e57d80a5434fd5201c051fc
authorTejun Heo <htejun@gmail.com>
Sun, 18 May 2008 16:15:10 +0000 (19 01:15 +0900)
committerJeff Garzik <jgarzik@redhat.com>
Mon, 19 May 2008 21:51:47 +0000 (19 17:51 -0400)
tree0ebd09fbf4e7f9f5e81e479685930c180eaece76
parente0614db2a398d4d0dc5fb47fe2c2783141262a3e
libata: increase PMP register access timeout to 3s

This timeout was set low because previously PMP register access was
done via polling and register access timeouts could stack up.  This is
no longer the case.  One timeout will make all following accesses fail
immediately.

In rare cases both marvell and SIMG PMPs need almost a second.  Bump
it to 3s.

While at it, rename it to SATA_PMP_RW_TIMEOUT.  It's not specific to
SCR access.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
drivers/ata/libata-pmp.c
include/linux/libata.h