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Commit 1ab54a93 authored by Bjorn Helgaas's avatar Bjorn Helgaas Committed by Linus Torvalds
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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: default avatarBjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: default avatar"Luck, Tony" <tony.luck@intel.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent a51f4a81

Documentation/ia64/serial.txt

+7 −0
Original line number Diff line number Diff line
@@ -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