RTC generates an extra spurious interrupt for every actual periodic
interrupt. This is due to a problem with the RTC_IT bit of
REG_PWR_ISR1. It requires two writes or two reads (when COR is
enabled) to clear it. Since COR is enabled and one read of the same
register is done already (inside twl4030-pwrirq.c do_twl4030_pwrirq()
function), we can do away with a need to add one more write into the
same register inside the interrupt handler, by replacing the write
currently present with just one extra read.
Signed-off-by: Jagadeesh Bhaskar Pakaravoor <j-pakaravoor@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
David Brownell [Thu, 4 Sep 2008 17:24:17 +0000 (10:24 -0700)]
rtc-twl4030 cleanup
Some rtc-twl4030 cleanup, which among other things adds up to
using about 10% less object code:
- Remove:
* broken/unfixable "periodic" IRQ support (2^N Hz)
* duplicated constants in the header file
* pointless stuff:
+ support for settable epoch
+ memset() calls
+ indirection when reading time and alarm
+ indirection when enabling irqs
* needless ifdeffery for reading irq enable register
- IRQ updates:
* group irq enable/disable utilities together
* cache irq enable register
* now disable any old alarm irq before setting alarm
- Comment updates
* fix up my copyright attribution (old omap1 code)
* more correctly describe the rtc mask/set ops
* have a single place describe the register vs tm_* differences
- Other:
* don't support "current" dates in the 20th century
* switch over to bcd2bin()/bin2bcd()
* prefer dev_err() and better messages to printk(KERN_ERR...)
* correct some KERN_WARNING messages (should have been pr_err)
* whitespace bugs
* misc
The bugs fixed here are removing "periodic" IRQ support, and
some of the messaging. Update IRQs still misbehave (two per
second, not one!), and the alarm isn't wake-enabled.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
David Brownell [Sun, 31 Aug 2008 21:19:05 +0000 (14:19 -0700)]
omap2_nand updates
Minor updates to the OMAP{2,3} NAND driver:
- Rename those buffer PIO routines as *_buf16()
- Get rid of pointless LE16 data conversions; OMAP is always LE
- Speed up buffer reads by switching to __raw_readsl()
Right now this driver only handles 16-bit NAND, but eventually it
should handle 8-bit too. Moreover it may be worth using DMA...
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
Steve Sakoman [Sun, 7 Sep 2008 06:41:43 +0000 (23:41 -0700)]
ALSA: ASoC: Add support for Gumstix Overo (rev 3)
Signed-off-by: Steve Sakoman <steve@sakoman.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Steve Sakoman [Mon, 8 Sep 2008 21:41:39 +0000 (14:41 -0700)]
ALSA: ASoC: Add support for TWL4030 audio codec (rev 4)
Signed-off-by: Steve Sakoman <steve@sakoman.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Russell King [Fri, 5 Sep 2008 14:49:14 +0000 (15:49 +0100)]
[ARM] omap: fix inappropriate casting in gpio.c
gpio.c wilfully casts physical addresses to void __iomem * and then
fixes them up at runtime using:
bank->base = IO_ADDRESS(bank->base);
where accesses prior to this fixup are via omap_read/omap_write, and
after are by __raw_read/__raw_write. This doesn't lend itself to
static checking, nor to easy understanding of the code.
And so, OMAP_MPUIO_BASE gets to be the right type - integer like since
it's a physical address, not a MMIO pointer.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Paul Walmsley [Fri, 5 Sep 2008 07:37:39 +0000 (01:37 -0600)]
OMAP2xxx EAC: fix sparse warnings
This patch resolves the following two sparse warnings:
sound/arm/omap/eac.c:788:12: warning: symbol 'eac_init' was not declared. Should it be static?
sound/arm/omap/eac.c:793:13: warning: symbol 'eac_exit' was not declared. Should it be static?
Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Vikram Pandita [Thu, 21 Aug 2008 15:49:53 +0000 (21:19 +0530)]
Fix TWL4030 BCI compilation break
Fix following compilation error when enabling CONFIG_TWL4030_BCI_BATTERY
drivers/power/twl4030_bci_battery.c: In function 'twl4030_bci_battery_probe':
drivers/power/twl4030_bci_battery.c:911: error: dereferencing pointer to incomplete type
Signed-off-by: Vikram Pandita <vikram.pandita@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
David Brownell [Tue, 2 Sep 2008 17:23:55 +0000 (10:23 -0700)]
omap3 beagle: nand (mostly) cleanups
Clean up the Beagle NAND config a bit: use SZ_128K instead of
an arithmetic expression for the NAND block size. Set the
NAND_BUSWIDTH_16 flag. Make its init routine static.
(Unrelated: make omap3_beagle_i2c_init be part of beagle_init.
It shouldn't be called on non-beagle hardware; and beagle_init
already runs with other arch_initcall code.)
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Richard Woodruff <r-woodruff2@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
David Brownell [Fri, 29 Aug 2008 17:06:46 +0000 (10:06 -0700)]
omap3 beagle: input button
Export Beagle's "user" button through the input framework so it's
accessible using normal mechanisms. This uses BTN_EXTRA for lack
of a more obvious choice.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
FUJITA Tomonori [Fri, 29 Aug 2008 09:47:07 +0000 (11:47 +0200)]
remove blk_register_filter and blk_unregister_filter in gendisk
This patch remove blk_register_filter and blk_unregister_filter in
gendisk, and adds them to sd.c, sr.c. and ide-cd.c
The commit abf5439370491dd6fbb4fe1a7939680d2a9bc9d4 moved cmdfilter
from gendisk to request_queue. It turned out that in some subsystems
multiple gendisks share a single request_queue. So we get:
In the long term, we need to fix such subsystems but we need a quick
fix now. This patch add the command filter support to only sd and sr
though it might be useful for other SG_IO users (such as cciss).
OMAP1_IO_ADDRESS(), OMAP2_IO_ADDRESS() and IO_ADDRESS() returns cookies
for use with __raw_{read|write}* for accessing registers. Therefore,
these macros should return (void __iomem *) cookies, not integer values.
Doing this improves typechecking, and means we can find those places
where, eg, DMA controllers are incorrectly given virtual addresses to
DMA to, or physical addresses are thrown through a virtual to physical
address translation.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Mon, 1 Sep 2008 20:25:33 +0000 (21:25 +0100)]
[ARM] omap: improve is_omap_port()
Make is_omap_port() take the uart_8250_port structure so it can do
whatever test it desires. Convert the test to compare the physical
addresses rather than virtual addresses.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Wed, 3 Sep 2008 22:59:23 +0000 (23:59 +0100)]
[ARM] omap: fix build error in ohci-omap.c
drivers/usb/host/ohci-omap.c: In function 'ohci_omap_init':
drivers/usb/host/ohci-omap.c:228: error: 'start_hnp' undeclared (first use in this function)
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Wed, 3 Sep 2008 09:15:26 +0000 (10:15 +0100)]
[ARM] omap: fix gpio.c build error
arch/arm/plat-omap/gpio.c: In function '_omap_gpio_init':
arch/arm/plat-omap/gpio.c:1492: error: 'omap_mpuio_device' undeclared (first use in this function)
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Linus Torvalds [Thu, 28 Aug 2008 19:34:01 +0000 (12:34 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6:
Blackfin arch: Fix PM building on BF52x: No ROTWE on BF52x, add USBWE
Blackfin arch: sram: use 'unsigned long' for irqflags
Blackfin arch: let PCI depend on BROKEN
Blackfin arch: move include/asm-blackfin header files to arch/blackfin
Blackfin arch: fix bug - MPU crashes under stress
Blackfin arch: Fix bug - when to rmmod the L1_module, it stucks and then reboot the board.
Blackfin arch: dont actually need to muck with EMAC_SYSTAT for BF52x for demuxing
Blackfin arch: Add MTD Partitions for MTD_DATAFLASH, increase max SPI SCLK
In accordance with commit f42ac38c59e0a03d6da0c24a63fb211393f484b0
("ftrace: disable tracing for suspend to ram"), disable tracing
around the suspend code in hibernation code paths.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Peter Zijlstra [Tue, 19 Aug 2008 10:33:03 +0000 (12:33 +0200)]
sched: rt-bandwidth accounting fix
It fixes an accounting bug where we would continue accumulating runtime
even though the bandwidth control is disabled. This would lead to very long
throttle periods once bandwidth control gets turned on again.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Vegard Nossum [Thu, 28 Aug 2008 09:28:46 +0000 (17:28 +0800)]
Blackfin arch: sram: use 'unsigned long' for irqflags
Using just 'unsigned' will make flags an unsigned int. While this is
arguably not an error on blackfin where sizeof(int) == sizeof(long),
the patch is still justified on the grounds of principle.
The patch was generated using the Coccinelle semantic patch framework.
Cc: Julia Lawall <julia@diku.dk> Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
John Blackwood [Tue, 26 Aug 2008 19:09:43 +0000 (15:09 -0400)]
sched: fix sched_rt_rq_enqueue() resched idle
When sysctl_sched_rt_runtime is set to something other than -1 and the
CONFIG_RT_GROUP_SCHED kernel parameter is NOT enabled, we get into a state
where we see one or more CPUs idling forvever even though there are
real-time
tasks in their rt runqueue that are able to run (no longer throttled).
The sequence is:
- A real-time task is running when the timer sets the rt runqueue
to throttled, and the rt task is resched_task()ed and switched
out, and idle is switched in since there are no non-rt tasks to
run on that cpu.
- Eventually the do_sched_rt_period_timer() runs and un-throttles
the rt runqueue, but we just exit the timer interrupt and go back
to executing the idle task in the idle loop forever.
If we change the sched_rt_rq_enqueue() routine to use some of the code
from the CONFIG_RT_GROUP_SCHED enabled version of this same routine and
resched_task() the currently executing task (idle in our case) if it is
a lower priority task than the higher rt task in the now un-throttled
runqueue, the problem is no longer observed.
Signed-off-by: John Blackwood <john.blackwood@ccur.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Jean Delvare [Thu, 28 Aug 2008 06:33:23 +0000 (08:33 +0200)]
i2c: Prevent log spam on some DVB adapters
Some DVB adapters do not support the special I2C transaction that we
use for probing purposes. There's no point in logging this event, as
there's nothing the user can do and in general there is no actual
problem. So, degrade one of these messages to a debug message, and
move the other one around so that it is only printed on bogus drivers.
Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Uwe Bugla <uwe.bugla@gmx.de>
Vlad Yasevich [Wed, 27 Aug 2008 23:09:49 +0000 (16:09 -0700)]
sctp: fix random memory dereference with SCTP_HMAC_IDENT option.
The number of identifiers needs to be checked against the option
length. Also, the identifier index provided needs to be verified
to make sure that it doesn't exceed the bounds of the array.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
IB/mlx4: Actually return L_Key and R_Key for fast register MRs
Initialize the L_Key and R_Key for memory regions returned from
mlx4_ib_alloc_fast_reg_mr(). Otherwise callers just get garbage for
the memory keys and can't do anything useful with these MRs.
Signed-off-by: Vladimir Sokolovsky <vlad@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alan Cox [Tue, 26 Aug 2008 18:55:58 +0000 (19:55 +0100)]
tty: Fix termios tty window resize race with pty/tty pair
Kanru Chen posted a patch versus the old code which deals with the case
where you resize the pty side of a pty/tty pair. In that situation the
termios data is updated for both pty and tty but the locks are not held
for the right side.
This implements the fix differently against the updated tty code. Patch
by self but the hard bit (noticing and fixing the bug) is thanks to Kanru
Chen.
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Wed, 27 Aug 2008 21:31:44 +0000 (14:31 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
[PATCH] deal with the first call of ->show() generating no output
[PATCH] fix ->llseek() for a bunch of directories
[PATCH] fix regular readdir() and friends
[PATCH] fix hpux_getdents()
[PATCH] fix osf_getdirents()
[PATCH] ntfs: use d_add_ci
[PATCH] change d_add_ci argument ordering
[PATCH] fix efs_lookup()
[PATCH] proc: inode number fixlet
Linus Torvalds [Wed, 27 Aug 2008 21:28:45 +0000 (14:28 -0700)]
Merge branch 'drm-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm: don't set the signal blocker on the master process.
drm: don't call the vblank tasklet with irqs disabled.
r300: Fix cliprect emit
drm/radeon: r300_cmdbuf: Always emit INDX_BUFFER immediately after DRAW_INDEX
radeon: fix some hard lockups on r3/4/500s
Jeff Layton [Wed, 27 Aug 2008 17:53:30 +0000 (17:53 +0000)]
[CIFS] Add destroy routine for dns_resolver
Otherwise, we're leaking the payload memory.
CC: Stable Kernel <stable@vger.kernel.org> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
Linus Torvalds [Wed, 27 Aug 2008 08:14:46 +0000 (01:14 -0700)]
e1000: fix stack size
Here's the patch. It shrinks the stack from 1152 bytes to 192 bytes (the
first version, that only did the e1000_option part, got it down to 600
bytes). About half comes from not using multiple "e1000_option"
structures, the other half comes from turning the "e1000_opt_list[]"
arrays into "static const" instead, so that gcc doesn't copy them onto the
stack.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Reveiewed-by: Auke Kok <auke-jan.h.kok@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Wed, 27 Aug 2008 20:55:35 +0000 (13:55 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
block: remove blk_queue_tag_depth() and blk_queue_tag_queue()
block: remove unused ->busy part of the block queue tag map
bio: fix __bio_copy_iov() handling of bio->bv_len
bio: fix bio_copy_kern() handling of bio->bv_len
block: submit_bh() inadvertently discards barrier flag on a sync write
block: clean up cmdfilter sysfs interface
block: rename blk_scsi_cmd_filter to blk_cmd_filter
sg: restore command permission for TYPE_SCANNER
block: move cmdfilter from gendisk to request_queue
Linus Torvalds [Wed, 27 Aug 2008 20:54:55 +0000 (13:54 -0700)]
Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2:
ocfs2: Increment the reference count of an already-active stack.
[PATCH] configfs: Consolidate locking around configfs_detach_prep() in configfs_rmdir()
ocfs2: correctly set i_blocks after inline dir gets expanded
ocfs2: Jump to correct label in ocfs2_expand_inline_dir()
ocfs2: Fix sleep-with-spinlock recovery regression
[PATCH] ocfs2/cluster/netdebug.c: fix warning
[PATCH] ocfs2/cluster/tcp.c: make some functions static
Steven Rostedt [Wed, 27 Aug 2008 13:14:40 +0000 (09:14 -0400)]
ftrace: disable tracing for suspend to ram
I've been painstakingly debugging the issue with suspend to ram and
ftraced. The 2.6.28 code does not have this issue, but since the mcount
recording is not going to be in 27, this must be solved for the ftrace
daemon version.
The resume from suspend to ram would reboot because it was triple
faulting. Debugging further, I found that calling the mcount function
itself was not an issue, but it would fault when it incremented
preempt_count. preempt_count is on the tasks info structure that is on the
low memory address of the task's stack. For some reason, it could not
write to it. Resuming out of suspend to ram does quite a lot of funny
tricks to get to work, so it is not surprising at all that simply doing a
preempt_disable() would cause a fault.
Thanks to Rafael for suggesting to add a "while (1);" to find the place in
resuming that is causing the fault. I would place the loop somewhere in
the code, compile and reboot and see if it would either reboot (hit the
fault) or simply hang (hit the loop). Doing this over and over again, I
narrowed it down that it was happening in enable_nonboot_cpus.
At this point, I found that it is easier to simply disable tracing around
the suspend code, instead of searching for the particular function that
can not handle doing a preempt_disable.
This patch disables the tracer as it suspends and reenables it on resume.
I tested this patch on my Laptop, and it can resume fine with the patch.
Signed-off-by: Steven Rostedt <srostedt@redhat.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In particular, the "struct file *" and the "struct inode *" arguments do
not necessarily match, which means that the unlocked version of the
ioctl (that only gets a "struct file *") isn't actually able to handle
the cases it needs to handle.
This fixes bugzilla
http://bugzilla.kernel.org/show_bug.cgi?id=11401
Reported-and-bisected-by: Laurent Riffard <laurent.riffard@free.fr> Acked-by: Peter Osterlund <petero2@telia.com> Cc: Alan Cox <alan@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mel Gorman [Thu, 14 Aug 2008 10:10:14 +0000 (11:10 +0100)]
[ARM] Skip memory holes in FLATMEM when reading /proc/pagetypeinfo
Ordinarily, memory holes in flatmem still have a valid memmap and is safe
to use. However, an architecture (ARM) frees up the memmap backing memory
holes on the assumption it is never used. /proc/pagetypeinfo reads the
whole range of pages in a zone believing that the memmap is valid and that
pfn_valid will return false if it is not. On ARM, freeing the memmap breaks
the page->zone linkages even though pfn_valid() returns true and the kernel
can oops shortly afterwards due to accessing a bogus struct zone *.
This patch lets architectures say when FLATMEM can have holes in the
memmap. Rather than an expensive check for valid memory, /proc/pagetypeinfo
will confirm that the page linkages are still valid by checking page->zone
is still the expected zone. The lookup of page_zone is safe as there is a
limited range of memory that is accessed when calling page_zone. Even if
page_zone happens to return the correct zone, the impact is that the counters
in /proc/pagetypeinfo are slightly off but fragmentation monitoring is
unlikely to be relevant on an embedded system.
Reported-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Mel Gorman <mel@csn.ul.ie> Tested-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Dirk Behme [Sat, 15 Dec 2007 06:47:46 +0000 (07:47 +0100)]
[ARM] OMAP: Change mailing list for OMAP in MAINTAINERS
OMAP has now a list at vger.
Signed-off-by: Dirk Behme <dirk.behme@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
projects / linux-2.6-omap-h63xx.git / log