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authorBjorn Helgaas <bjorn.helgaas@hp.com>2008-10-14 17:01:03 -0600
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-14 16:30:14 -0700
commit758a7f7bb86b520aadc484f23da85e547b3bf3d8 (patch)
treed268b55fb9607f24e9433d900a260ca6d0bc1f7c /fs
parenta474aaedac99ba86e28ef6c912a7647c482db6dd (diff)
x86: register a platform RTC device if PNP doesn't describe it
Most if not all x86 platforms have an RTC device, but sometimes the RTC is not exposed as a PNP0b00/PNP0b01/PNP0b02 device in PNPBIOS or ACPI: http://bugzilla.kernel.org/show_bug.cgi?id=11580 https://bugzilla.redhat.com/show_bug.cgi?id=451188 It's best if we can discover the RTC via PNP because then we know which flavor of device it is, where it lives, and which IRQ it uses. But if we can't, we should register a platform device using the compiled-in RTC_PORT/RTC_IRQ resource assumptions. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Reported-by: Rik Theys <rik.theys@esat.kuleuven.be> Reported-by: shr_msn@yahoo.com.tw Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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