ahci: add warning messages for hp laptops with broken suspend
Harddisks on HP dv[4-6] and HDX18 fail to come online after resume on earlier BIOSen. Fortunately, HP recently released BIOS updates for all machines to fix the issue. Detect old BIOSen, warn the user to update BIOS on boot and suspend attempts and fail suspend. Kudos to all the bug reporters. Signed-off-by: NTejun Heo <tj@kernel.org> Cc: kernel.org@epperson.homelinux.net Cc: emisca@gmail.com Cc: Gadi Cohen <dragon@wastelands.net> Cc: Paul Swanson <paul@procursa.com> Cc: s@ourada.org Cc: Trevor Davenport <trevor.davenport@gmail.com> Cc: corruptor1972 <steven_tierney@yahoo.co.uk> Cc: Victoria Wilson <mail@vwilson.co.uk> Cc: khiraly <khiraly.list@gmail.com> Cc: Sean <wollombi@gmail.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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