Revision e02f5f52cafbea013817d81f1acc4baf50d6324b authored by Bjorn Helgaas on 15 November 2007, 00:59:59 UTC, committed by Linus Torvalds on 15 November 2007, 02:45:41 UTC
"Luming Yu" <luming.yu@gmail.com> says:

  There is a "ttyS1 irq is -1" problem observed on tiger4 which cause the
  serial port broken.

  It is because that there is __no__ ACPI IRQ resource assigned for the
  serial port.  So the value of the IRQ for the port is never changed since it
  got initialized to -1.

If PNP supplies a valid IRQ, use it.  Otherwise, leave port.irq == 0, which
means "no IRQ" to the serial core.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Yu Luming <luming.yu@intel.com>
Acked-by: Matthew Wilcox <matthew@wil.cx>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 57510c2
History
File Mode Size
Kconfig -rw-r--r-- 2.0 KB
Kconfig.iosched -rw-r--r-- 1.9 KB
Makefile -rw-r--r-- 427 bytes
as-iosched.c -rw-r--r-- 37.8 KB
blktrace.c -rw-r--r-- 12.7 KB
bsg.c -rw-r--r-- 22.1 KB
cfq-iosched.c -rw-r--r-- 54.0 KB
compat_ioctl.c -rw-r--r-- 21.9 KB
deadline-iosched.c -rw-r--r-- 11.5 KB
elevator.c -rw-r--r-- 25.1 KB
genhd.c -rw-r--r-- 19.0 KB
ioctl.c -rw-r--r-- 7.0 KB
ll_rw_blk.c -rw-r--r-- 108.0 KB
noop-iosched.c -rw-r--r-- 2.6 KB
scsi_ioctl.c -rw-r--r-- 16.9 KB

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