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Dima Zavin [Fri, 8 Oct 2010 21:34:15 +0000 (14:34 -0700)]
Revert "net: Fix CONFIG_RPS option to be turned off"
This reverts commit
bc344f6ba89d5a60334105702f829bc3464d41ef.
Colin Cross [Wed, 6 Oct 2010 05:08:01 +0000 (22:08 -0700)]
[ARM] fiq glue: Align fiq stacks
Change-Id: Ia117c12e9c26de61c4acbb3efeb4fed2bed0d873
Signed-off-by: Colin Cross <ccross@android.com>
Colin Cross [Sat, 2 Oct 2010 06:41:38 +0000 (23:41 -0700)]
[ARM] fiq debugger: Allow selection of target cpu
Change-Id: I606452828d260cb533a11d558d53581d6152964a
Signed-off-by: Colin Cross <ccross@android.com>
Shawn Bohrer [Tue, 28 Sep 2010 23:12:05 +0000 (01:12 +0200)]
epoll: make epoll_wait use the hrtimer range feature
This make epoll use hrtimers for the timeout value which prevents
epoll_wait() from timing out up to a millisecond early.
This mirrors the behavior of select() and poll().
Change-Id: Ibcd2dc9ce5b4fae4aa97934835ef5906af73d116
Signed-off-by: Shawn Bohrer <shawn.bohrer@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Andrew Morton [Tue, 28 Sep 2010 23:12:04 +0000 (01:12 +0200)]
select: rename estimate_accuracy to select_estimate_accuracy
Make it a subsystem-specific identifier because we wish to amke it
non-static in the next patch ("epoll: make epoll_wait() use the hrtimer
range feature").
Change-Id: I2b1654d51699b4c0753673228cec7e90485c9806
Cc: Shawn Bohrer <shawn.bohrer@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Colin Cross [Mon, 16 Aug 2010 21:51:51 +0000 (14:51 -0700)]
ARM: fiq debugger: Add tty to fiq debugger
Change-Id: I80347cdb70cda104b96562c63f972c1f217e3822
Signed-off-by: Colin Cross <ccross@google.com>
Iliyan Malchev [Sun, 6 Jun 2010 00:36:24 +0000 (17:36 -0700)]
ARM: Add generic fiq serial debugger
Change-Id: Ibb536c88f0dbaf4766d0599296907e35e42cbfd6
Signed-off-by: Iliyan Malchev <malchev@google.com>
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Arve Hjønnevåg [Tue, 28 Sep 2010 00:50:00 +0000 (17:50 -0700)]
ARM: Add fiq_glue
Change-Id: I27d2554e07d9de204e0a06696d38db51608d9f6b
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Signed-off-by: Colin Cross <ccross@android.com>
Dima Zavin [Wed, 29 Sep 2010 00:35:31 +0000 (17:35 -0700)]
sched: use the old min_vruntime when normalizing on dequeue
After pulling the thread off the run-queue during a cgroup change,
the cfs_rq.min_vruntime gets recalculated. The dequeued thread's vruntime
then gets normalized to this new value. This can then lead to the thread
getting an unfair boost in the new group if the vruntime of the next
task in the old run-queue was way further ahead.
Cc: Arve Hjønnevåg <arve@android.com>
Signed-off-by: Dima Zavin <dima@android.com>
Dima Zavin [Wed, 29 Sep 2010 00:24:51 +0000 (17:24 -0700)]
sched: normalize sleeper's vruntime during group change
If you switch the cgroup of a sleeping thread, its vruntime does
not get adjusted correctly for the difference between the
min_vruntime values of the two groups.
This patch adds a new callback, prep_move_task, to struct sched_class
to give sched_fair the opportunity to adjust the task's vruntime
just before setting its new group. This allows us to properly normalize
a sleeping task's vruntime when moving it between different cgroups.
More details about the problem:
http://lkml.org/lkml/2010/9/28/24
Cc: Arve Hjønnevåg <arve@android.com>
Signed-off-by: Dima Zavin <dima@android.com>
Dmitry Shmidt [Thu, 30 Sep 2010 21:44:14 +0000 (14:44 -0700)]
net: wireless: bcm4329: Fix setting HT clock race conditions in driver start
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Arve Hjønnevåg [Thu, 3 Jun 2010 23:33:07 +0000 (16:33 -0700)]
Allow CONFIG_STACKTRACE to be enabled by itself.
This allows us to get a kernel stacktrace for a thread though /proc.
Also enable it by default.
Change-Id: If8c21cd02feaf9863f4841ace524fa30c7328d49
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Dmitry Shmidt [Wed, 29 Sep 2010 17:22:59 +0000 (10:22 -0700)]
net: wireless: bcm4329: Fix setting HT clock race conditions
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Benoit Goby [Fri, 24 Sep 2010 01:34:27 +0000 (18:34 -0700)]
usb: gadget: android: Remove WAKEUP flag from bmAttributes
Remove USB_CONFIG_ATT_WAKEUP from bmAttributes as we don't
support remote wakeup. This fixes an issue with the USB 2.0
compliance test tool.
Change-Id: Ic15e44710069f3f05ace6a82bbfa2b85a3649027
Signed-off-by: Benoit Goby <benoit@android.com>
Bjorn Bringert [Thu, 26 Aug 2010 14:08:32 +0000 (15:08 +0100)]
Support lseek(2) in ashmem driver
Signed-off-by: Bjorn Bringert <bringert@android.com>
Change-Id: I509d18b21832e229737ea7ebaa231fb107eb61d7
Dmitry Shmidt [Mon, 20 Sep 2010 22:34:48 +0000 (15:34 -0700)]
l2tp: l2tp_eth: Fix section mismatch warning
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Dmitry Shmidt [Thu, 16 Sep 2010 22:47:05 +0000 (15:47 -0700)]
net: wireless: bcm4329: Fix interrupt enabling in case of error
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Greg Goldman [Wed, 15 Sep 2010 22:05:19 +0000 (15:05 -0700)]
net: wireless: bcm4329: Update to Version 4.218.248.6
Fix watchdog time rescheduling, fix first scan no-return
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Greg Goldman [Tue, 14 Sep 2010 23:55:46 +0000 (16:55 -0700)]
net: wireless: bcm4329: Enable packet filtering during low power mode
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Greg Goldman [Mon, 13 Sep 2010 23:11:16 +0000 (16:11 -0700)]
net: wireless: bcm4329: Ignore error if scan results are empty
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Dmitry Shmidt [Sun, 12 Sep 2010 21:23:20 +0000 (14:23 -0700)]
net: wireless: bcm4329: Add debug print for cscan failure
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Dmitry Shmidt [Sun, 12 Sep 2010 21:18:23 +0000 (14:18 -0700)]
net: wireless: bcm4329: Fix roaming setting on resume
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Gary King [Mon, 6 Sep 2010 22:37:12 +0000 (15:37 -0700)]
bounce: fix cache maintenance for bounced highmem pages
the bounced page should be flushed after memcpy, to ensure that
architecture implementations can synchronize instruction and data
caches of the copied data.
Change-Id: I095a3463ec7fdaff3d0ff416f5648bc661fb5f8a
Signed-off-by: Gary King <gking@nvidia.com>
Kyungmin Park [Tue, 7 Sep 2010 18:06:32 +0000 (11:06 -0700)]
The eMMC spec 4.4 and 4.3 + additional feature chips has CSD structure
version 3 and version 3 have to check the CSD_STRUCTURE byte in the
EXT_CSD register.
Also fix EXT_CSD revision message.
Change-Id: Ic5d3a1893d6c5d238e1f59fa1f2307e75d76bf96
[akpm@linux-foundation.org: fix comment, per Chris Ball]
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Adrian Hunter <adrian.hunter@nokia.com>
Cc: Chris Ball <cjb@laptop.org>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Colin Cross <ccross@android.com>
Gary King [Fri, 16 Jul 2010 00:11:32 +0000 (17:11 -0700)]
mmc: subtract boot sectors from disk size for eMMC 4.3+ devices
the csd sector count reported by eMMC 4.3+ cards includes the boot
partition size; subtract this from the size reported to the disk
since the boot partition is inaccessible
Change-Id: I601b83aa0159b7aa446409ea8c945b256dd0b5b1
Signed-off-by: Gary King <gking@nvidia.com>
Colin Cross [Fri, 3 Sep 2010 19:41:21 +0000 (12:41 -0700)]
mmc_block: Allow more than 8 partitions per card
Set the GENHD_FL_EXT_DEVT flag, which will allocate minor numbers
in major 259 for partitions past disk->minors.
Also remove the use of disk_devt to determine devidx from md->disk.
md->disk->first_minor is always initialized from devidx and can
always be used to recover it.
Signed-off-by: Colin Cross <ccross@android.com>
Todd Poynor [Fri, 27 Aug 2010 00:25:50 +0000 (17:25 -0700)]
EFI/GPT: Register named partitions.
Change-Id: If318512de67d3d152192aa66b074427f4e5b5c2e
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Colin Cross [Wed, 7 Apr 2010 19:05:32 +0000 (12:05 -0700)]
fs: partitions: Add support for named partitions
Adds a new file in /sys/block/<block>/<partition> called partition_name
that contains the name of the partition, if specified by the partition
handler.
Change-Id: I6648ed95eabefd1d00edbfdfd99eeb971d15f4b3
Signed-off-by: Colin Cross <ccross@android.com>
Greg Goldman [Fri, 3 Sep 2010 00:03:57 +0000 (17:03 -0700)]
net: wireless: bcm4329: Fix roaming failure case
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Colin Cross [Thu, 2 Sep 2010 01:35:55 +0000 (18:35 -0700)]
PM: Prevent waiting forever on asynchronous resume after abort
Only wait on a parent device during resume if the parent device is
suspended.
Consider three drivers, A, B, and C. The parent of A is C, and C
has async_suspend set. On boot, C->power.completion is initialized
to 0.
During the first suspend:
suspend_devices_and_enter(...)
dpm_resume(...)
device_suspend(A)
device_suspend(B) returns error, aborts suspend
dpm_resume_end(...)
dpm_resume(...)
device_resume(A)
dpm_wait(A->parent == C)
wait_for_completion(C->power.completion)
The wait_for_completion will never complete, because
complete_all(C->power.completion) will only be called from
device_suspend(C) or device_resume(C), neither of which is called
if suspend is aborted before C.
After a successful suspend->resume cycle, where B doesn't abort
suspend, C->power.completion is left in the completed state by the
call to device_resume(C), and the same call path will work if B
aborts suspend.
Signed-off-by: Colin Cross <ccross@android.com>
Dmitry Shmidt [Mon, 30 Aug 2010 17:29:37 +0000 (10:29 -0700)]
net: Fix CONFIG_RPS option to be turned off
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Dmitry Shmidt [Sat, 28 Aug 2010 22:12:57 +0000 (15:12 -0700)]
net: wireless: bcm4329: Fix HW_OOB interrupt processing
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Rebecca Schultz Zavin [Sat, 28 Aug 2010 01:40:49 +0000 (18:40 -0700)]
Revert "net: wireless: bcm4329: Fix HW_OOB interrupt processing"
This reverts commit
8bd035daa820dc5612ae311262c71dc133871046.
Rebecca Schultz Zavin [Sat, 28 Aug 2010 01:40:43 +0000 (18:40 -0700)]
Revert "net: wireless: bcm4329: Fix interrupt enabling for level interrupt"
This reverts commit
261d21bbfffef6261696d0d13672d2e4f9d76f05.
Dmitry Shmidt [Sat, 28 Aug 2010 00:38:01 +0000 (17:38 -0700)]
net: wireless: bcm4329: Fix interrupt enabling for level interrupt
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Dmitry Shmidt [Fri, 27 Aug 2010 21:57:48 +0000 (14:57 -0700)]
net: wireless: bcm4329: Fix HW_OOB interrupt processing
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Mike Lockwood [Mon, 23 Aug 2010 12:17:21 +0000 (08:17 -0400)]
USB: gadget: android: Disable MTP when RNDIS function is enabled.
Signed-off-by: Mike Lockwood <lockwood@android.com>
Greg Goldman [Tue, 24 Aug 2010 00:21:26 +0000 (17:21 -0700)]
net: wireless: bcm4329: Update to Version 4.218.248
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Colin Cross [Sun, 22 Aug 2010 00:27:02 +0000 (17:27 -0700)]
wakelock: Fix operator precedence bug
Change-Id: I21366ace371d1b8f4684ddbe4ea8d555a926ac21
Signed-off-by: Colin Cross <ccross@google.com>
Colin Cross [Sun, 22 Aug 2010 00:26:52 +0000 (17:26 -0700)]
ashmem: Update arguments of shrinker for 2.6.35
Change-Id: Ie527d18f3352ede06d565826c8d35ded1638203a
Signed-off-by: Colin Cross <ccross@google.com>
Colin Cross [Sun, 22 Aug 2010 00:25:42 +0000 (17:25 -0700)]
lowmemorykiller: Update arguments of shrinker for 2.6.35
Change-Id: I6bb09b36639527f91c48704118acad5e50c4163f
Signed-off-by: Colin Cross <ccross@google.com>
Dmitry Shmidt [Fri, 20 Aug 2010 18:12:22 +0000 (11:12 -0700)]
net: wireless: bcm4329: Send "HANG" message only once
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Jamie Gennis [Mon, 9 Aug 2010 19:46:58 +0000 (12:46 -0700)]
Allow multiple pmem master mmap()s.
Signed-off-by: Jamie Gennis <jgennis@google.com>
Change-Id: Icbe619c92e0ebb391f0a93f81937705452a67d87
Howard Harte [Wed, 18 Aug 2010 19:49:38 +0000 (12:49 -0700)]
net: wireless: bcm4329: Disable packet filtering
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Dmitry Shmidt [Tue, 17 Aug 2010 20:13:00 +0000 (13:13 -0700)]
net: wireless: bcm4329: Turn OFF packet filtering during DHCP session
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Dmitry Shmidt [Mon, 16 Aug 2010 18:36:15 +0000 (11:36 -0700)]
net: wireless: bcm4329: Increase PMU_MAX_TRANSITION_DLY to 1 sec
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Dmitry Shmidt [Fri, 13 Aug 2010 21:37:03 +0000 (14:37 -0700)]
net: wireless: bcm4329: Fix "setsuspend" behavior
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Dmitry Shmidt [Fri, 13 Aug 2010 19:16:13 +0000 (12:16 -0700)]
net: wireless: bcm4329: Add memory barriers to wait functions
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Dmitry Shmidt [Tue, 10 Aug 2010 22:20:35 +0000 (15:20 -0700)]
net: wireless: bcm4329: Fix unregister_early_suspend() in dhd_detach()
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Greg Goldman [Tue, 10 Aug 2010 22:15:26 +0000 (15:15 -0700)]
net: wireless: bcm4329: Fix dhd_bus_watchdog() race conditions
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Greg Goldman [Fri, 6 Aug 2010 22:15:43 +0000 (15:15 -0700)]
net: wireless: bcm4329: Fix scan timeout for abg case
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Greg Goldman [Thu, 5 Aug 2010 23:16:46 +0000 (16:16 -0700)]
net: wireless: bcm4329: Force scan when driver is loaded
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Arve Hjønnevåg [Thu, 5 Aug 2010 23:25:22 +0000 (16:25 -0700)]
Merge commit 'v2.6.35' into android-2.6.35
Dmitry Shmidt [Tue, 3 Aug 2010 21:34:43 +0000 (14:34 -0700)]
net: wireless: bcm4329: Add wakelock processing to WEXT requests
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Marcel Holtmann [Mon, 26 Jul 2010 14:06:00 +0000 (10:06 -0400)]
Bluetooth: Defer SCO setup if mode change is pending
Certain headsets such as the Motorola H350 will reject SCO and eSCO
connection requests while the ACL is transitioning from sniff mode
to active mode. Add synchronization so that SCO and eSCO connection
requests will wait until the ACL has fully transitioned to active mode.
< HCI Command: Exit Sniff Mode (0x02|0x0004) plen 2
handle 12
> HCI Event: Command Status (0x0f) plen 4
Exit Sniff Mode (0x02|0x0004) status 0x00 ncmd 1
< HCI Command: Setup Synchronous Connection (0x01|0x0028) plen 17
handle 12 voice setting 0x0040
> HCI Event: Command Status (0x0f) plen 4
Setup Synchronous Connection (0x01|0x0028) status 0x00 ncmd 1
> HCI Event: Number of Completed Packets (0x13) plen 5
handle 12 packets 1
> HCI Event: Mode Change (0x14) plen 6
status 0x00 handle 12 mode 0x00 interval 0
Mode: Active
> HCI Event: Synchronous Connect Complete (0x2c) plen 17
status 0x10 handle 14 bdaddr 00:1A:0E:50:28:A4 type SCO
Error: Connection Accept Timeout Exceeded
Signed-off-by: Ron Shaffer <rshaffer@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Ron Shaffer [Fri, 28 May 2010 15:53:46 +0000 (11:53 -0400)]
Bluetooth: Reassigned copyright to Code Aurora Forum
Qualcomm, Inc. has reassigned rights to Code Aurora Forum. Accordingly,
as files are modified by Code Aurora Forum members, the copyright
statement will be updated.
Signed-off-by: Ron Shaffer <rshaffer@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Linus Torvalds [Sun, 1 Aug 2010 22:11:14 +0000 (15:11 -0700)]
Linux 2.6.35
Trond Myklebust [Sun, 1 Aug 2010 17:40:40 +0000 (13:40 -0400)]
NFS: Fix a typo in include/linux/nfs_fs.h
nfs_commit_inode() needs to be defined irrespectively of whether or not
we are supporting NFSv3 and NFSv4.
Allow the compiler to optimise away code in the NFSv2-only case by
converting it into an inlined stub function.
Reported-and-tested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 31 Jul 2010 02:02:51 +0000 (19:02 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
cyber2000fb: fix console in truecolor modes
cyber2000fb: fix machine hang on module load
SA1111: Eliminate use after free
ARM: Fix Versatile/Realview/VExpress MMC card detection sense
ARM: 6279/1: highmem: fix SMP preemption bug in kmap_high_l1_vipt
ARM: Add barriers to io{read,write}{8,16,32} accessors as well
ARM: 6273/1: Add barriers to the I/O accessors if ARM_DMA_MEM_BUFFERABLE
ARM: 6272/1: Convert L2x0 to use the IO relaxed operations
ARM: 6271/1: Introduce *_relaxed() I/O accessors
ARM: 6275/1: ux500: don't use writeb() in uncompress.h
ARM: 6270/1: clean files in arch/arm/boot/compressed/
ARM: Fix csum_partial_copy_from_user()
Linus Torvalds [Sat, 31 Jul 2010 02:02:21 +0000 (19:02 -0700)]
Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
NFS: Ensure that writepage respects the nonblock flag
NFS: kswapd must not block in nfs_release_page
nfs: include space for the NUL in root path
Linus Torvalds [Sat, 31 Jul 2010 02:01:11 +0000 (19:01 -0700)]
Merge branch 'drm-fixes' of git://git./linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm/edid: Fix the HDTV hack sync adjustment
drm/radeon/kms: fix radeon mid power profile reporting
Hugh Dickins [Fri, 30 Jul 2010 17:58:26 +0000 (10:58 -0700)]
mm: fix ia64 crash when gcore reads gate area
Debian's ia64 autobuilders have been seeing kernel freeze or reboot
when running the gdb testsuite (Debian bug 588574): dannf bisected to
2.6.32
62eede62dafb4a6633eae7ffbeb34c60dba5e7b1 "mm: ZERO_PAGE without
PTE_SPECIAL"; and reproduced it with gdb's gcore on a simple target.
I'd missed updating the gate_vma handling in __get_user_pages(): that
happens to use vm_normal_page() (nowadays failing on the zero page),
yet reported success even when it failed to get a page - boom when
access_process_vm() tried to copy that to its intermediate buffer.
Fix this, resisting cleanups: in particular, leave it for now reporting
success when not asked to get any pages - very probably safe to change,
but let's not risk it without testing exposure.
Why did ia64 crash with 16kB pages, but succeed with 64kB pages?
Because setup_gate() pads each 64kB of its gate area with zero pages.
Reported-by: Andreas Barth <aba@not.so.argh.org>
Bisected-by: dann frazier <dannf@debian.org>
Signed-off-by: Hugh Dickins <hughd@google.com>
Tested-by: dann frazier <dannf@dannf.org>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Fri, 30 Jul 2010 14:25:19 +0000 (15:25 +0100)]
CIFS: Remove __exit mark from cifs_exit_dns_resolver()
Remove the __exit mark from cifs_exit_dns_resolver() as it's called by the
module init routine in case of error, and so may have been discarded during
linkage.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ondrej Zary [Thu, 29 Jul 2010 20:40:54 +0000 (22:40 +0200)]
cyber2000fb: fix console in truecolor modes
Return value was not set to 0 in setcolreg() with truecolor modes. This causes
fb_set_cmap() to abort after first color, resulting in blank palette - and
blank console in 24bpp and 32bpp modes.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Ondrej Zary [Thu, 29 Jul 2010 20:32:20 +0000 (22:32 +0200)]
cyber2000fb: fix machine hang on module load
I was testing two CyberPro 2000 based PCI cards on x86 and the machine always
hanged completely when the cyber2000fb module was loaded. It seems that the
card hangs when some registers are accessed too quickly after writing RAMDAC
control register. With this patch, both card work.
Add delay after RAMDAC control register write to prevent hangs on module load.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Julia Lawall [Fri, 30 Jul 2010 15:17:28 +0000 (17:17 +0200)]
SA1111: Eliminate use after free
__sa1111_remove always frees its argument, so the subsequent reference to
sachip->saved_state represents a use after free. __sa1111_remove does not
appear to use the saved_state field, so the patch simply frees it first.
A simplified version of the semantic patch that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression E,E2;
@@
__sa1111_remove(E)
...
(
E = E2
|
* E
)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Thu, 29 Jul 2010 14:58:59 +0000 (15:58 +0100)]
ARM: Fix Versatile/Realview/VExpress MMC card detection sense
The MMC card detection sense has become really confused with negations
at various levels, leading to some platforms not detecting inserted
cards. Fix this by converting everything to positive logic throughout,
thereby getting rid of these negations.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Gary King [Thu, 29 Jul 2010 16:37:20 +0000 (17:37 +0100)]
ARM: 6279/1: highmem: fix SMP preemption bug in kmap_high_l1_vipt
smp_processor_id() must not be called from a preemptible context (this
is checked by CONFIG_DEBUG_PREEMPT). kmap_high_l1_vipt() was doing so.
This lead to a problem where the wrong per_cpu kmap_high_l1_vipt_depth
could be incremented, causing a BUG_ON(*depth <= 0); in
kunmap_high_l1_vipt().
The solution is to move the call to smp_processor_id() after the call
to preempt_disable().
Originally by: Andrew Howe <ahowe@nvidia.com>
Signed-off-by: Gary King <gking@nvidia.com>
Acked-by: Nicolas Pitre <nico.as.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Greg Goldman [Fri, 30 Jul 2010 22:02:38 +0000 (15:02 -0700)]
net: wireless: bcm4329: Update to Version 4.218.246 and setband fix
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Trond Myklebust [Fri, 30 Jul 2010 19:31:57 +0000 (15:31 -0400)]
NFS: Ensure that writepage respects the nonblock flag
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Trond Myklebust [Fri, 30 Jul 2010 19:31:54 +0000 (15:31 -0400)]
NFS: kswapd must not block in nfs_release_page
See https://bugzilla.kernel.org/show_bug.cgi?id=16056
If other processes are blocked waiting for kswapd to free up some memory so
that they can make progress, then we cannot allow kswapd to block on those
processes.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@kernel.org
Dan Carpenter [Tue, 13 Jul 2010 11:34:59 +0000 (13:34 +0200)]
nfs: include space for the NUL in root path
In root_nfs_name() it does the following:
if (strlen(buf) + strlen(cp) > NFS_MAXPATHLEN) {
printk(KERN_ERR "Root-NFS: Pathname for remote directory too long.\n");
return -1;
}
sprintf(nfs_export_path, buf, cp);
In the original code if (strlen(buf) + strlen(cp) == NFS_MAXPATHLEN)
then the sprintf() would lead to an overflow. Generally the rest of the
code assumes that the path can have NFS_MAXPATHLEN (1024) characters and
a NUL terminator so the fix is to add space to the nfs_export_path[]
buffer.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Howard Harte [Fri, 30 Jul 2010 00:43:06 +0000 (17:43 -0700)]
net: wireless: bcm4329: Update to 4.218.245 (combo scan)
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Linus Torvalds [Thu, 29 Jul 2010 22:23:28 +0000 (15:23 -0700)]
Merge branch 'for-linus' of git://git390.marist.edu/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] etr: fix clock synchronization race
[S390] Fix IRQ tracing in case of PER
Linus Torvalds [Thu, 29 Jul 2010 22:21:44 +0000 (15:21 -0700)]
Merge git://git./linux/kernel/git/wim/linux-2.6-watchdog
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
watchdog: update MAINTAINERS entry
Linus Torvalds [Thu, 29 Jul 2010 22:21:07 +0000 (15:21 -0700)]
Merge branch 'fix/hda' of git://git./linux/kernel/git/tiwai/sound-2.6
* 'fix/hda' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: hda - Add a PC-beep workaround for ASUS P5-V
ALSA: hda - Assume PC-beep as default for Realtek
ALSA: hda - Don't register beep input device when no beep is available
ALSA: hda - Fix pin-detection of Nvidia HDMI
David Howells [Thu, 29 Jul 2010 11:45:55 +0000 (12:45 +0100)]
CRED: Fix __task_cred()'s lockdep check and banner comment
Fix __task_cred()'s lockdep check by removing the following validation
condition:
lockdep_tasklist_lock_is_held()
as commit_creds() does not take the tasklist_lock, and nor do most of the
functions that call it, so this check is pointless and it can prevent
detection of the RCU lock not being held if the tasklist_lock is held.
Instead, add the following validation condition:
task->exit_state >= 0
to permit the access if the target task is dead and therefore unable to change
its own credentials.
Fix __task_cred()'s comment to:
(1) discard the bit that says that the caller must prevent the target task
from being deleted. That shouldn't need saying.
(2) Add a comment indicating the result of __task_cred() should not be passed
directly to get_cred(), but rather than get_task_cred() should be used
instead.
Also put a note into the documentation to enforce this point there too.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Thu, 29 Jul 2010 11:45:49 +0000 (12:45 +0100)]
CRED: Fix get_task_cred() and task_state() to not resurrect dead credentials
It's possible for get_task_cred() as it currently stands to 'corrupt' a set of
credentials by incrementing their usage count after their replacement by the
task being accessed.
What happens is that get_task_cred() can race with commit_creds():
TASK_1 TASK_2 RCU_CLEANER
-->get_task_cred(TASK_2)
rcu_read_lock()
__cred = __task_cred(TASK_2)
-->commit_creds()
old_cred = TASK_2->real_cred
TASK_2->real_cred = ...
put_cred(old_cred)
call_rcu(old_cred)
[__cred->usage == 0]
get_cred(__cred)
[__cred->usage == 1]
rcu_read_unlock()
-->put_cred_rcu()
[__cred->usage == 1]
panic()
However, since a tasks credentials are generally not changed very often, we can
reasonably make use of a loop involving reading the creds pointer and using
atomic_inc_not_zero() to attempt to increment it if it hasn't already hit zero.
If successful, we can safely return the credentials in the knowledge that, even
if the task we're accessing has released them, they haven't gone to the RCU
cleanup code.
We then change task_state() in procfs to use get_task_cred() rather than
calling get_cred() on the result of __task_cred(), as that suffers from the
same problem.
Without this change, a BUG_ON in __put_cred() or in put_cred_rcu() can be
tripped when it is noticed that the usage count is not zero as it ought to be,
for example:
kernel BUG at kernel/cred.c:168!
invalid opcode: 0000 [#1] SMP
last sysfs file: /sys/kernel/mm/ksm/run
CPU 0
Pid: 2436, comm: master Not tainted 2.6.33.3-85.fc13.x86_64 #1 0HR330/OptiPlex
745
RIP: 0010:[<
ffffffff81069881>] [<
ffffffff81069881>] __put_cred+0xc/0x45
RSP: 0018:
ffff88019e7e9eb8 EFLAGS:
00010202
RAX:
0000000000000001 RBX:
ffff880161514480 RCX:
00000000ffffffff
RDX:
00000000ffffffff RSI:
ffff880140c690c0 RDI:
ffff880140c690c0
RBP:
ffff88019e7e9eb8 R08:
00000000000000d0 R09:
0000000000000000
R10:
0000000000000001 R11:
0000000000000040 R12:
ffff880140c690c0
R13:
ffff88019e77aea0 R14:
00007fff336b0a5c R15:
0000000000000001
FS:
00007f12f50d97c0(0000) GS:
ffff880007400000(0000) knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
CR2:
00007f8f461bc000 CR3:
00000001b26ce000 CR4:
00000000000006f0
DR0:
0000000000000000 DR1:
0000000000000000 DR2:
0000000000000000
DR3:
0000000000000000 DR6:
00000000ffff0ff0 DR7:
0000000000000400
Process master (pid: 2436, threadinfo
ffff88019e7e8000, task
ffff88019e77aea0)
Stack:
ffff88019e7e9ec8 ffffffff810698cd ffff88019e7e9ef8 ffffffff81069b45
<0>
ffff880161514180 ffff880161514480 ffff880161514180 0000000000000000
<0>
ffff88019e7e9f28 ffffffff8106aace 0000000000000001 0000000000000246
Call Trace:
[<
ffffffff810698cd>] put_cred+0x13/0x15
[<
ffffffff81069b45>] commit_creds+0x16b/0x175
[<
ffffffff8106aace>] set_current_groups+0x47/0x4e
[<
ffffffff8106ac89>] sys_setgroups+0xf6/0x105
[<
ffffffff81009b02>] system_call_fastpath+0x16/0x1b
Code: 48 8d 71 ff e8 7e 4e 15 00 85 c0 78 0b 8b 75 ec 48 89 df e8 ef 4a 15 00
48 83 c4 18 5b c9 c3 55 8b 07 8b 07 48 89 e5 85 c0 74 04 <0f> 0b eb fe 65 48 8b
04 25 00 cc 00 00 48 3b b8 58 04 00 00 75
RIP [<
ffffffff81069881>] __put_cred+0xc/0x45
RSP <
ffff88019e7e9eb8>
---[ end trace
df391256a100ebdd ]---
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Lockwood [Thu, 29 Jul 2010 18:42:24 +0000 (14:42 -0400)]
USB: g_mass_storage: Always allow disabling mass storage by writing to lun file
For android builds we disable the check for curlun->prevent_medium_removal.
Instead we let the framework manage unmounting policy, as we sometimes need
to unmount after the media has been removed.
This also helps support hosts that do not inform the device when the media
has been unmounted.
Signed-off-by: Mike Lockwood <lockwood@android.com>
Wim Van Sebroeck [Thu, 29 Jul 2010 18:02:51 +0000 (18:02 +0000)]
watchdog: update MAINTAINERS entry
Add Mailing-list and website to watchdog MAINTAINERS entry.
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Takashi Iwai [Thu, 29 Jul 2010 13:30:02 +0000 (15:30 +0200)]
ALSA: hda - Add a PC-beep workaround for ASUS P5-V
ASUS P5-V provides a SSID that unexpectedly matches with the value
compilant with Realtek's specification. Thus the driver interprets
it badly, resulting in non-working PC beep.
This patch adds a white-list for such a case; a white-list of known
devices with working PC beep.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Russell King [Thu, 29 Jul 2010 10:38:05 +0000 (11:38 +0100)]
ARM: Add barriers to io{read,write}{8,16,32} accessors as well
The ioread/iowrite accessors also need barriers as they're used in
place of readl/writel et.al. in portable drivers. Create __iormb()
and __iowmb() which are conditionally defined to be barriers dependent
on ARM_DMA_MEM_BUFFERABLE, and always use these macros in the accessors.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Catalin Marinas [Wed, 28 Jul 2010 21:01:55 +0000 (22:01 +0100)]
ARM: 6273/1: Add barriers to the I/O accessors if ARM_DMA_MEM_BUFFERABLE
When the coherent DMA buffers are mapped as Normal Non-cacheable
(ARM_DMA_MEM_BUFFERABLE enabled), buffer accesses are no longer ordered
with Device memory accesses causing failures in device drivers that do
not use the mandatory memory barriers before starting a DMA transfer.
LKML discussions led to the conclusion that such barriers have to be
added to the I/O accessors:
http://thread.gmane.org/gmane.linux.kernel/683509/focus=686153
http://thread.gmane.org/gmane.linux.ide/46414
http://thread.gmane.org/gmane.linux.kernel.cross-arch/5250
This patch introduces a wmb() barrier to the write*() I/O accessors to
handle the situations where Normal Non-cacheable writes are still in the
processor (or L2 cache controller) write buffer before a DMA transfer
command is issued. For the read*() accessors, a rmb() is introduced
after the I/O to avoid speculative loads where the driver polls for a
DMA transfer ready bit.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Catalin Marinas [Wed, 28 Jul 2010 21:01:25 +0000 (22:01 +0100)]
ARM: 6272/1: Convert L2x0 to use the IO relaxed operations
This patch is in preparation for a subsequent patch which adds barriers
to the I/O accessors. Since the mandatory barriers may do an L2 cache
sync, this patch avoids a recursive call into l2x0_cache_sync() via the
write*() accessors and wmb() and a call into l2x0_cache_sync() with the
l2x0_lock held.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Catalin Marinas [Wed, 28 Jul 2010 21:00:54 +0000 (22:00 +0100)]
ARM: 6271/1: Introduce *_relaxed() I/O accessors
This patch introduces readl*_relaxed()/write*_relaxed() as the main I/O
accessors (when __mem_pci is defined). The standard read*()/write*()
macros are now based on the relaxed accessors.
This patch is in preparation for a subsequent patch which adds barriers
to the I/O accessors.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Rabin Vincent [Thu, 29 Jul 2010 11:13:18 +0000 (12:13 +0100)]
ARM: 6275/1: ux500: don't use writeb() in uncompress.h
Don't use writeb() in uncompress.h, to avoid the following build errors
when the "Add barriers to the I/O accessors" series is applied. Use
__raw_writeb() instead.
arch/arm/boot/compressed/misc.o: In function `putc':
arch/arm/mach-ux500/include/mach/uncompress.h:41:
undefined reference to `outer_cache'
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Magnus Damm [Wed, 28 Jul 2010 04:46:21 +0000 (05:46 +0100)]
ARM: 6270/1: clean files in arch/arm/boot/compressed/
Update the compressed boot Makefile for ARM to
remove files during clean.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Adam Jackson [Tue, 27 Jul 2010 21:40:32 +0000 (07:40 +1000)]
drm/edid: Fix the HDTV hack sync adjustment
We're adjusting horizontal timings only here, moving vsync was just a
slavish translation of a typo in the X server.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Daniel J Blueman [Wed, 28 Jul 2010 11:25:58 +0000 (12:25 +0100)]
drm/radeon/kms: fix radeon mid power profile reporting
Fix incorrectly reporting 'default' power profile, when it is set to 'mid'.
Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Linus Torvalds [Thu, 29 Jul 2010 03:01:26 +0000 (20:01 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/jwessel/linux-2.6-kgdb
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb:
x86,kgdb: Fix hw breakpoint regression
Linus Torvalds [Thu, 29 Jul 2010 03:00:42 +0000 (20:00 -0700)]
Merge git://git./linux/kernel/git/jejb/scsi-rc-fixes-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
[SCSI] ibmvscsi: Fix oops when an interrupt is pending during probe
[SCSI] zfcp: Update status read mempool
[SCSI] zfcp: Do not wait for SBALs on stopped queue
[SCSI] zfcp: Fix check whether unchained ct_els is possible
[SCSI] ipr: fix resource path display and formatting
Linus Torvalds [Thu, 29 Jul 2010 02:59:55 +0000 (19:59 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/lrg/voltage-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6:
davinci: da850/omap-l138 evm: account for
DEFDCDC{2,3} being tied high
regulator: tps6507x: allow driver to use
DEFDCDC{2,3}_HIGH register
wm8350-regulator: fix wm8350_register_regulator error handling
ab3100: fix off-by-one value range checking for voltage selector
Andre Osterhues [Tue, 13 Jul 2010 20:59:17 +0000 (15:59 -0500)]
ecryptfs: Bugfix for error related to ecryptfs_hash_buckets
The function ecryptfs_uid_hash wrongly assumes that the
second parameter to hash_long() is the number of hash
buckets instead of the number of hash bits.
This patch fixes that and renames the variable
ecryptfs_hash_buckets to ecryptfs_hash_bits to make it
clearer.
Fixes: CVE-2010-2492
Signed-off-by: Andre Osterhues <aosterhues@escrypt.com>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jason Wessel [Thu, 29 Jul 2010 00:10:30 +0000 (19:10 -0500)]
x86,kgdb: Fix hw breakpoint regression
HW breakpoints events stopped working correctly with kgdb
as a result of commit:
018cbffe6819f6f8db20a0a3acd9bab9bfd667e4
(Merge commit 'v2.6.33' into perf/core).
The regression occurred because the behavior changed for setting
NOTIFY_STOP as the return value to the die notifier if the breakpoint
was known to the HW breakpoint API. Because kgdb is using the HW
breakpoint API to register HW breakpoints slots, it must also now
implement the overflow_handler call back else kgdb does not get to see
the events from the die notifier.
The kgdb_ll_trap function will be changed to be general purpose code
which can allow an easy way to implement the hw_breakpoint API
overflow call back.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Acked-by: Dongdong Deng <dongdong.deng@windriver.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Linus Torvalds [Wed, 28 Jul 2010 18:10:53 +0000 (11:10 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
ceph: use complete_all and wake_up_all
ceph: Correct obvious typo of Kconfig variable "CRYPTO_AES"
ceph: fix dentry lease release
ceph: fix leak of dentry in ceph_init_dentry() error path
ceph: fix pg_mapping leak on pg_temp updates
ceph: fix d_release dop for snapdir, snapped dentries
ceph: avoid dcache readdir for snapdir
Steven Whitehouse [Wed, 28 Jul 2010 16:56:23 +0000 (17:56 +0100)]
GFS2: Use kmalloc when possible for ->readdir()
If we don't need a huge amount of memory in ->readdir() then
we can use kmalloc rather than vmalloc to allocate it. This
should cut down on the greater overheads associated with
vmalloc for smaller directories.
We may be able to eliminate vmalloc entirely at some stage,
but this is easy to do right away.
Also using GFP_NOFS to avoid any issues wrt to deleting inodes
while under a glock, and suggestion from Linus to factor out
the alloc/dealloc.
I've given this a test with a variety of different sized
directories and it seems to work ok.
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Nick Piggin <npiggin@suse.de>
Cc: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Takashi Iwai [Wed, 28 Jul 2010 15:43:36 +0000 (17:43 +0200)]
ALSA: hda - Assume PC-beep as default for Realtek
Enable PC-beep as default for hardwares that aren't compliant with the
SSID value Realtek requires. In such a case, better to enable the beep
to avoid a regression.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Iwai [Wed, 28 Jul 2010 15:37:16 +0000 (17:37 +0200)]
ALSA: hda - Don't register beep input device when no beep is available
We check now the availability of PC beep and skip the build of beep
mixers, but the driver still registers the input device. This should
be checked as well.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Sekhar Nori [Mon, 12 Jul 2010 12:26:21 +0000 (17:56 +0530)]
davinci: da850/omap-l138 evm: account for
DEFDCDC{2,3} being tied high
Per the da850/omap-l138 Beta EVM SOM schematic, the
DEFDCDC2 and
DEFDCDC3 lines are tied high. This leads to a 3.3V IO and 1.2V CVDD
voltage.
Pass the right platform data to the TPS6507x driver so it can operate
on the
DEFDCDC{2,3}_HIGH register to read and change voltage levels.
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Anuj Aggarwal [Mon, 12 Jul 2010 12:24:06 +0000 (17:54 +0530)]
regulator: tps6507x: allow driver to use
DEFDCDC{2,3}_HIGH register
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
In TPS6507x, depending on the status of
DEFDCDC{2,3} pin either
DEFDCDC{2,3}_LOW or
DEFDCDC{2,3}_HIGH register needs to be read or
programmed to change the output voltage.
The current driver assumes
DEFDCDC{2,3} pins are always tied low
and thus operates only on
DEFDCDC{2,3}_LOW register. This need
not always be the case (as is found on OMAP-L138 EVM).
Unfortunately, software cannot read the status of
DEFDCDC{2,3} pins.
So, this information is passed through platform data depending on
how the board is wired.
Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>