kernel-hacking-2024-linux-s.../drivers
Tejun Heo f3faf8fc3f sata_nv: don't diddle with nIEN on mcp55
On mcp55, nIEN gets stuck once set and liteon blueray rom iHOS104-08
violates ATA specification and fails to set I on D2H Reg FIS if nIEN
is set when the command was issued.  When the other party is following
the spec, both devices can work fine but when the two flaws are put
together, they can't talk to each other.

mcp55 has its own IRQ masking mechanism and there's no reason to mess
with nIEN in the first place.  Fix it by dropping nIEN diddling from
nv_mcp55_freeze/thaw().

This was originally reported by Cengiz.  Although Cengiz hasn't
verified the fix yet, I could reproduce this problem and verfiy the
fix.  Even if Cengiz is experiencing different or additional problems,
this patch is needed.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Cengiz Günay <cgunay@emory.edu>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-06-02 13:49:57 -04:00
..
accessibility
acpi Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6 2010-05-28 16:14:17 -07:00
amba
ata sata_nv: don't diddle with nIEN on mcp55 2010-06-02 13:49:57 -04:00
atm
auxdisplay
base topology: convert cpu notifier to return encapsulate errno value 2010-05-27 09:12:48 -07:00
block
bluetooth
cdrom
char drop unused dentry argument to ->fsync 2010-05-27 22:05:02 -04:00
clocksource
connector
cpufreq
cpuidle Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6 2010-05-28 16:14:17 -07:00
crypto
dca
dio
dma Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx 2010-05-30 09:12:43 -07:00
edac drivers/edac: convert logging messages direct uses of __FILE__ to %s, __FILE 2010-05-27 09:12:52 -07:00
eisa
firewire Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2010-05-27 10:22:06 -07:00
firmware
gpio gpio: Fix inverted rdc321x gpio data out registers 2010-05-28 01:37:59 +02:00
gpu Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 2010-05-28 16:14:40 -07:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2010-05-27 09:19:55 -07:00
hwmon hwmon: (lm75) Add support for the Texas Instruments TMP105 2010-05-27 19:59:03 +02:00
i2c
ide
idle intel_idle: native hardware cpuidle driver for latest Intel processors 2010-05-28 14:26:20 -04:00
ieee1394 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2010-05-27 10:22:06 -07:00
ieee802154
infiniband Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband 2010-05-30 09:12:16 -07:00
input input: Touchscreen driver for TPS6507x 2010-05-28 01:37:38 +02:00
isdn mISDN: remove unnecessary test on f_pos 2010-05-27 09:12:56 -07:00
leds leds: Fix leds-gpio openfirmware compile issue 2010-05-28 08:35:27 +01:00
lguest
macintosh
mca
md md: convert cpu notifier to return encapsulate errno value 2010-05-27 09:12:48 -07:00
media
memstick
message drivers/message/i2o/i2o_config.c: use memdup_user 2010-05-27 09:12:41 -07:00
mfd mfd: Rename twl5031 sih modules 2010-05-28 01:38:02 +02:00
misc lktdm: add support for hardlockup, softlockup and hung task crashes 2010-05-27 09:12:54 -07:00
mmc drivers/mmc/host: use ERR_CAST 2010-05-27 09:12:40 -07:00
mtd drop unused dentry argument to ->fsync 2010-05-27 22:05:02 -04:00
net Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 2010-05-30 09:13:08 -07:00
nubus
of
oprofile
parisc
parport
pci Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2010-05-28 14:42:18 -07:00
pcmcia
platform
pnp
power
pps
ps3
rapidio rapidio: fix new kernel-doc warnings 2010-05-30 09:02:47 -07:00
regulator mfd: AB3100 register access change to abx500 API 2010-05-28 01:37:45 +02:00
rtc mfd: AB3100 register access change to abx500 API 2010-05-28 01:37:45 +02:00
s390
sbus
scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2010-05-27 10:28:11 -07:00
serial ARM: S5PV210: serial: Fix section mismatch warning 2010-05-28 19:40:05 +09:00
sfi SFI: add sysfs interface for SFI tables. 2010-05-27 12:46:20 -04:00
sh
sn
spi
ssb
staging Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6 2010-05-30 09:11:11 -07:00
tc
telephony drivers/telephony/ixj.c: use memdup_user 2010-05-27 09:12:42 -07:00
thermal
uio
usb drop unused dentry argument to ->fsync 2010-05-27 22:05:02 -04:00
uwb
vhost Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2010-05-28 10:18:40 -07:00
video drop unused dentry argument to ->fsync 2010-05-27 22:05:02 -04:00
virtio
vlynq
w1
watchdog mfd: Change rdc321x resources flags to IORESOURCE_IO 2010-05-28 01:37:52 +02:00
xen
zorro
Kconfig
Makefile intel_idle: native hardware cpuidle driver for latest Intel processors 2010-05-28 14:26:20 -04:00