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authorBjorn Helgaas <bjorn.helgaas@hp.com>2006-10-03 01:14:00 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-03 08:03:42 -0700
commit1ab54a936d75b1b100c998c8e2717fafd0b4c3b6 (patch)
tree8a13ad08b6205eabf20f4a6ddb9b29401c1df696
parenta51f4a81e737735668206ad1618ce4a84cf362e7 (diff)
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[PATCH] ia64: note requirement for 8250_pnp, now that 8250_acpi is gone
We removed 8250_acpi in 2.6.17. If we don't have PNPACPI turned on, we won't find any ACPI serial devices, so mention this requirement in the troubleshooting part of the documentation. CONFIG_PNPACPI is already turned on in all the relevant defconfigs. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-by: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--Documentation/ia64/serial.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/ia64/serial.txt b/Documentation/ia64/serial.txt
index f51eb4b..040b977 100644
--- a/Documentation/ia64/serial.txt
+++ b/Documentation/ia64/serial.txt
@@ -124,6 +124,13 @@ TROUBLESHOOTING SERIAL CONSOLE PROBLEMS
- Add entry to /etc/securetty for console tty.
+ No ACPI serial devices found in 2.6.17 or later:
+
+ - Turn on CONFIG_PNP and CONFIG_PNPACPI. Prior to 2.6.17, ACPI
+ serial devices were discovered by 8250_acpi. In 2.6.17,
+ 8250_acpi was replaced by the combination of 8250_pnp and
+ CONFIG_PNPACPI.
+
[1] http://www.dig64.org/specifications/DIG64_PCDPv20.pdf
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