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5d38998ed1
linux/drivers/pnp
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Rene Herman 5d38998ed1 PNP: do not test PNP_DRIVER_RES_DO_NOT_CHANGE on suspend/resume 
The PNP_DRIVER_RES_DO_NOT_CHANGE flag is meant to signify that the PNP core
should not change resources for the device -- not that it shouldn't
disable/enable the device on suspend/resume.

ALSA ISAPnP drivers set PNP_DRIVER_RES_DO_NOT_CHANAGE (0x0001) through
setting PNP_DRIVER_RES_DISABLE (0x0003).  The latter including the former
may in itself be considered rather unexpected but doesn't change that
suspend/resume wouldn't seem to have any business testing the flag.

As reported by Ondrej Zary for snd-cs4236, ALSA driven ISAPnP cards don't
survive swsusp hibernation with the resume skipping setting the resources
due to testing the flag -- the same test in the suspend path isn't enough
to keep hibernation from disabling the card it seems.

These tests were added (in 2005) by Piere Ossman in commit
68094e3251, "alsa: Improved PnP suspend
support" who doesn't remember why.  This deletes them.

Signed-off-by: Rene Herman <rene.herman@gmail.com>
Tested-by: Ondrej Zary <linux@rainbow-software.org>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Pierre Ossman <drzeus@drzeus.cx>
Cc: Adam Belay <ambx1@neo.rr.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06 10:41:20 -08:00
..
isapnp [ALSA] Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.cz 2007-10-16 16:51:18 +02:00
pnpacpi pnp: declare PNP option parsing functions as __init 2008-02-06 10:41:19 -08:00
pnpbios pnp: declare PNP option parsing functions as __init 2008-02-06 10:41:19 -08:00
base.h [PATCH] PNP: export pnp_bus_type 2007-02-11 10:51:28 -08:00
card.c PNP: use dev_info(), dev_err(), etc in core 2007-10-17 08:43:04 -07:00
core.c PNP: add debug message for adding new device 2007-10-17 08:43:04 -07:00
driver.c PNP: do not test PNP_DRIVER_RES_DO_NOT_CHANGE on suspend/resume 2008-02-06 10:41:20 -08:00
interface.c isapnp driver semaphore to mutex 2008-02-06 10:41:20 -08:00
Kconfig Use menuconfig objects: PNP 2007-07-16 09:05:40 -07:00
Makefile PNP: use dev_info(), dev_err(), etc in core 2007-10-17 08:43:04 -07:00
manager.c isapnp driver semaphore to mutex 2008-02-06 10:41:20 -08:00
quirks.c PNP: use dev_info(), dev_err(), etc in core 2007-10-17 08:43:04 -07:00
resource.c drivers/pnp/resource.c: Add missing pci_dev_put 2007-11-29 09:24:52 -08:00
support.c PNP: fix up after Lindent 2007-07-26 11:35:21 -07:00
system.c PNP: use dev_info() in system driver 2007-10-17 08:43:04 -07:00