On Thu 2008-07-10 01:58:48, Rafael J. Wysocki wrote: > From: Zhang Rui <rui.zhang@xxxxxxxxx> > Subject: AHCI: Speed-up resume > > During resume, sleep 1 second to wait for the HBA reset > to finish is a waste of time. > > According to the AHCI 1.2 spec, > We should poll the HOST_CTL register, > and return error if the host reset is not > finished within 1 second. > > Test results show that the HBA reset can be done quickly(in usecs). > And this patch may save nearly 1 second during resume. > > Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx> > Acked-by: Tejun Heo <tj@xxxxxxxxxx> > Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx> ACK. -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
