linux/include
Bjorn Helgaas 7e92b4fc34 x86, serial: convert legacy COM ports to platform devices
Make x86 COM ports into platform devices and don't probe for them
if we have PNP.

This prevents double discovery, where a device was found both by
the legacy probe and by 8250_pnp, e.g.,

    serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
    00:02: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A

This also means IRDA devices without a UART PNP ID will no longer be
claimed by the serial driver, which might require changes in IRDA
drivers and administration.

In addition to this patch, you may need to configure a setserial init
script, e.g., /etc/init.d/setserial, so it doesn't poke legacy UART
stuff back in.  On Debian, "dpkg-reconfigure setserial" with the "kernel"
option does this.

To force the old legacy probe behavior even when we have PNPBIOS or
ACPI, load the new legacy_serial module (or build 8250 static) with
the "legacy_serial.force" option.

[akpm@linux-foundation.org: fix makefiles]
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Keith Owens <kaos@ocs.com.au>
Cc: Len Brown <lenb@kernel.org>
Cc: Adam Belay <ambx1@neo.rr.com>
Cc: Matthieu CASTET <castet.matthieu@free.fr>
Cc: Jean Tourrilhes <jt@hpl.hp.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Ville Syrjala <syrjala@sci.fi>
Cc: Russell King <rmk+serial@arm.linux.org.uk>
Cc: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:23 -07:00
..
acpi PNPACPI sets pnpdev->dev.archdata 2007-05-08 11:15:08 -07:00
asm-alpha Remove tas() 2007-05-08 11:15:20 -07:00
asm-arm Remove tas() 2007-05-08 11:15:20 -07:00
asm-arm26 Remove tas() 2007-05-08 11:15:20 -07:00
asm-avr32 Clean up mostly unused IOSPACE macros 2007-05-08 11:15:13 -07:00
asm-blackfin Remove tas() 2007-05-08 11:15:20 -07:00
asm-cris move die notifier handling to common code 2007-05-08 11:15:04 -07:00
asm-frv atomic.h: atomic_add_unless as inline. Remove system.h atomic.h circular dependency 2007-05-08 11:15:20 -07:00
asm-generic local_t: architecture independent extension 2007-05-08 11:15:20 -07:00
asm-h8300 Remove tas() 2007-05-08 11:15:20 -07:00
asm-i386 x86, serial: convert legacy COM ports to platform devices 2007-05-08 11:15:23 -07:00
asm-ia64 local_t: ia64 extension 2007-05-08 11:15:20 -07:00
asm-m32r Remove tas() 2007-05-08 11:15:20 -07:00
asm-m68k Remove tas() 2007-05-08 11:15:20 -07:00
asm-m68knommu Remove tas() 2007-05-08 11:15:20 -07:00
asm-mips Remove tas() 2007-05-08 11:15:20 -07:00
asm-parisc local_t: parisc cleanup 2007-05-08 11:15:20 -07:00
asm-powerpc Remove tas() 2007-05-08 11:15:20 -07:00
asm-ppc Remove tas() 2007-05-08 11:15:20 -07:00
asm-s390 kdump/kexec: calculate note size at compile time 2007-05-08 11:15:07 -07:00
asm-sh Remove tas() 2007-05-08 11:15:20 -07:00
asm-sh64 Remove tas() 2007-05-08 11:15:20 -07:00
asm-sparc Remove tas() 2007-05-08 11:15:20 -07:00
asm-sparc64 Remove tas() 2007-05-08 11:15:20 -07:00
asm-um x86: create asm/cmpxchg.h 2007-05-08 11:15:20 -07:00
asm-v850 Remove tas() 2007-05-08 11:15:20 -07:00
asm-x86_64 x86, serial: convert legacy COM ports to platform devices 2007-05-08 11:15:23 -07:00
asm-xtensa Remove tas() 2007-05-08 11:15:20 -07:00
crypto [CRYPTO] cryptd: Add software async crypto daemon 2007-05-02 14:38:32 +10:00
keys [AF_RXRPC]: Provide secure RxRPC sockets for use by userspace and kernel both 2007-04-26 15:48:28 -07:00
linux PNP: notice whether we have PNP devices (PNPBIOS or PNPACPI) 2007-05-08 11:15:23 -07:00
math-emu Delete unused header file math-emu/extended.h 2007-05-08 11:15:05 -07:00
media i2c: Cleanup the includes of <linux/i2c.h> 2007-05-01 23:26:29 +02:00
mtd UBI: Unsorted Block Images 2007-04-27 14:23:33 +03:00
net cleanup compat ioctl handling 2007-05-08 11:15:09 -07:00
pcmcia add new_id to PCMCIA drivers 2007-05-07 12:12:50 -07:00
rdma Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband 2007-05-07 12:18:21 -07:00
rxrpc [AF_RXRPC]: Delete the old RxRPC code. 2007-04-26 15:55:48 -07:00
scsi [SCSI] modalias for scsi devices 2007-04-17 18:15:04 -04:00
sound [ALSA] version 1.0.14rc3 2007-03-14 08:25:52 +01:00
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