Masami Hiramatsu [Tue, 7 Apr 2009 02:01:00 +0000 (19:01 -0700)]
kprobes: cleanup comment style in kprobes.h
Fix comment style in kprobes.h.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Acked-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Masami Hiramatsu [Tue, 7 Apr 2009 02:00:59 +0000 (19:00 -0700)]
kprobes: move EXPORT_SYMBOL_GPL just after function definitions
Clean up positions of EXPORT_SYMBOL_GPL in kernel/kprobes.c according to
checkpatch.pl.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Acked-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Masami Hiramatsu [Tue, 7 Apr 2009 02:00:58 +0000 (19:00 -0700)]
kprobes: cleanup aggr_kprobe related code
Currently, kprobes can disable all probes at once, but can't disable it
individually (not unregister, just disable an kprobe, because
unregistering needs to wait for scheduler synchronization). These patches
introduce APIs for on-the-fly per-probe disabling and re-enabling by
dis-arming/re-arming its breakpoint instruction.
This patch:
Change old_p to ap in add_new_kprobe() for readability, copy flags member
in add_aggr_kprobe(), and simplify the code flow of
register_aggr_kprobe().
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Acked-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Rapoport [Tue, 7 Apr 2009 02:00:57 +0000 (19:00 -0700)]
spi_imx: set spi_master.dma_alignment = 4
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Cc: Bryan Wu <bryan.wu@analog.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Rapoport [Tue, 7 Apr 2009 02:00:57 +0000 (19:00 -0700)]
pxa2xx_spi: set spi_master.dma_alignment = 8
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Cc: Bryan Wu <bryan.wu@analog.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Rapoport [Tue, 7 Apr 2009 02:00:56 +0000 (19:00 -0700)]
SPI: add dma_alignment field to spi_master
Some SPI controllers have restrictions on DMAable buffers alignemt.
Currently if the buffer supplied by protocol driver is not properly
aligned, the controller silently performs transfer in PIO mode. Addition
of dma_alignment field to spi_master allows protocol drivers to perform
proper alignment.
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Cc: Bryan Wu <bryan.wu@analog.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Rapoport [Tue, 7 Apr 2009 02:00:55 +0000 (19:00 -0700)]
spi_bfin5xx: remove unused IS_DMA_ALIGNED macro
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Cc: Bryan Wu <bryan.wu@analog.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Eric Miao [Tue, 7 Apr 2009 02:00:54 +0000 (19:00 -0700)]
spi: pxa2xx_spi: introduce chipselect GPIO to simplify the common cases
Most SPI peripherals use GPIOs as their chip selects, introduce .gpio_cs
for this.
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Roel Kluin [Tue, 7 Apr 2009 02:00:54 +0000 (19:00 -0700)]
spi: limit reaches -1, tested 0
With a postfix decrement limit will reach -1 rather than 0, so the warning
will not be issued.
Also, add a cpu_relax() into the busy-wait loop.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Mariusz Ceier <mceier@gmail.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Wolfgang Muees [Tue, 7 Apr 2009 02:00:53 +0000 (19:00 -0700)]
Blackfin SPI Driver: Make mmc_spi driver work on Blackfin
1. Rewrite of the non-dma data transfer functions to use only ONE mode
of TIMOD (TIMOD=0x1). With TIMOD=0, it was not possible to set the TX
bit pattern. So the TDBR = 0xFFFF inside the read calls won't work.
2. Clear SPI_RDBR before reading and before duplex transfer.
Otherwise the garbage data in RDBR will get read. Since mmc_spi uses a
lot of duplex transfers, this is the main cause of mmc_spi failure.
3. Poll RXS for transfer completion. Polling SPIF or TXS cannot
guarantee transfer completion. This may interrupt a transfer before it
is finished. Also this may leave garbage data in buffer and affect
next transfer.
[Yi Li <yi.li@analog.com>: add a field "u16 idle_tx_val" in "struct
bfin5xx_spi_chip" to specify the value to transmit if no TX value
is supplied.]
Signed-off-by: Wolfgang Muees <wolfgang.mues@auerswald.de>
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Michael Hennerich [Tue, 7 Apr 2009 02:00:51 +0000 (19:00 -0700)]
Blackfin SPI Driver: Add GPIO controlled SPI Slave Select support
Add support for GPIO controlled SPI Chip Selects. To make use of this
feature, set chip_select = 0 and add a proper cs_gpio to your
controller_data.
struct spi_board_info
.chip_select = 0
struct bfin5xx_spi_chip
.cs_gpio = GPIO_P###
There are various SPI devices that require SPI MODE_0, and need to have
the Chip Selects asserted during the entire transfer. Consider using
SPI_MODE_3 (SPI_CPHA | SPI_CPOL) if your device allows it.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Frysinger [Tue, 7 Apr 2009 02:00:51 +0000 (19:00 -0700)]
Blackfin SPI Driver: fix NULL pointer crash
Fix NULL pointer crash when cleaning up from invalid platform resources
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Frysinger [Tue, 7 Apr 2009 02:00:50 +0000 (19:00 -0700)]
Blackfin SPI Driver: use bfin_spi_ prefix on all functions
Do this because when things crash, we get simple names like "setup" and
"start_queue" which is pretty difficult to trace back to the real thing:
the spi driver
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Yi Li [Tue, 7 Apr 2009 02:00:49 +0000 (19:00 -0700)]
Blackfin SPI Driver: fix bug - correct usage of struct spi_transfer.cs_change
According to comments in linux/spi/spi.h:
* All SPI transfers start with the relevant chipselect active. Normally
* it stays selected until after the last transfer in a message. Drivers
* can affect the chipselect signal using cs_change.
*
* (i) If the transfer isn't the last one in the message, this flag is
* used to make the chipselect briefly go inactive in the middle of the
* message. Toggling chipselect in this way may be needed to terminate
* a chip command, letting a single spi_message perform all of group of
* chip transactions together.
*
* (ii) When the transfer is the last one in the message, the chip may
* stay selected until the next transfer. On multi-device SPI busses
* with nothing blocking messages going to other devices, this is just
* a performance hint; starting a message to another device deselects
* this one. But in other cases, this can be used to ensure correctness.
* Some devices need protocol transactions to be built from a series of
* spi_message submissions, where the content of one message is determined
* by the results of previous messages and where the whole transaction
* ends when the chipselect goes intactive.
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Yi Li [Tue, 7 Apr 2009 02:00:44 +0000 (19:00 -0700)]
Blackfin SPI Driver: fix bug - spi controller driver does not assert/deassert CS correctly
This bug can be observed when two SPI devices are sharing the spi bus: One
device is set as SPI CS 7, another one is using SPI CS 4.
In spi_bfin5xx.c: cs_active(), cs_deactive() are used to control SPI_FLG
register. From the debug bellow:
cs_active: flag: 0x7f91, chip->flag: 0x7f80, cs: 7
cs_active: flag: 0xef91, chip->flag: 0xef10, cs: 4
When device A (cs_7) activate CS 7, SPI_FLG is set as 0x7f91 (however,
SPI_FLG should be set as 0x7f80, or 0x6f91 if in broadcast mode).
Due to some HW bug (very possibly), if SPI_FLG is set as 0x7f91, SPISSEL7
is asserted, however SPISSEL4 will be asserted too (I can see this using
the scope). This is unreasonable according to HRM.
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Frysinger [Tue, 7 Apr 2009 02:00:43 +0000 (19:00 -0700)]
Blackfin SPI Driver: tweak magic spi dma sequence to get it working on BF54x
Without this change, SPI DMA is not reliably under stress tests.
Obiviously it's a hardware issue which is not addressed by any document.
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Frysinger [Tue, 7 Apr 2009 02:00:42 +0000 (19:00 -0700)]
Blackfin SPI Driver: add timeout while waiting for SPIF in dma irq handler
The "while" endless loop will cause the system hang if hardware error, so
we add timeout control to make the system alive.
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Frysinger [Tue, 7 Apr 2009 02:00:41 +0000 (19:00 -0700)]
Blackfin SPI Driver: get dma working for SPI flashes
When using a BF533-STAMP here with a W25X10 SPI flash. It works fine when
enable_dma is disabled, but doesn't work at all when turning DMA on. We
get just 0xff bytes back when trying to read the device.
Change the code around so that it programs the SPI first and then enables
DMA, it seems to work a lot better ...
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Frysinger [Tue, 7 Apr 2009 02:00:40 +0000 (19:00 -0700)]
Blackfin SPI Driver: SPI slave select code cleanup
- remove duplicated definition MAX_SPI_SSEL
- remove unnecessary array size
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Frysinger [Tue, 7 Apr 2009 02:00:39 +0000 (19:00 -0700)]
Blackfin SPI Driver: use the properl BIT_CTL_xxx defines
use the properl BIT_CTL_... defines rather than the internal driv er
CFG_SPI_... defines
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Frysinger [Tue, 7 Apr 2009 02:00:38 +0000 (19:00 -0700)]
Blackfin SPI Driver: do not check for SPI errors if DMA itself did not flag any
We only need to check SPI error when DMA failes, cause that is the DMA IRQ
handling routine.
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Frysinger [Tue, 7 Apr 2009 02:00:38 +0000 (19:00 -0700)]
Blackfin SPI Driver: add a few more DMA debug messages
Because of DMA hardware issue, we were trying to use software workaround.
This patch add some useful debug messages to help us debugging the DMA
code.
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Frysinger [Tue, 7 Apr 2009 02:00:37 +0000 (19:00 -0700)]
Blackfin SPI Driver: drop bogus cast and touchup dma label
Blackfin's related DMA callback API doesn't need void * cast, so drop it.
And this driver is for all Blackfin processors not only for BF53x, we
update the DMA request label for more meaningful information.
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Frysinger [Tue, 7 Apr 2009 02:00:36 +0000 (19:00 -0700)]
Blackfin SPI Driver: unify duplicated code in dma read/write paths
For DMA TX/RX operation in pump_transfers, DMA contriguration code in TX
and RX paths are almost the same. This patch unify the duplicated DMA
code to make it more readable.
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Frysinger [Tue, 7 Apr 2009 02:00:35 +0000 (19:00 -0700)]
Blackfin SPI Driver: pass DMA overflow error to the higher level
If the SPI bus registers a receive overflow error, pass the result back up
to the higher levels.
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Frysinger [Tue, 7 Apr 2009 02:00:34 +0000 (19:00 -0700)]
Blackfin SPI Driver: use len_in_bytes when we care about the number of bytes transferred
Use len_in_bytes when we care about the number of bytes transferred rather
than the number of spi transactions. (this value will be the same for
8bit transfers, but not any other sizes)
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Frysinger [Tue, 7 Apr 2009 02:00:33 +0000 (19:00 -0700)]
Blackfin SPI Driver: remove useless <asm/cplbinit.h>
We already moved bfin_addr_dcachable() and friends into the cacheflush
header where it belongs, so don't need to include <asm/cplbinit.h> here.
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Michael Hennerich [Tue, 7 Apr 2009 02:00:32 +0000 (19:00 -0700)]
Blackfin SPI Driver: Fix erroneous SPI Clock divisor calculation
Fix erroneous SPI Clock divisor calculation. Make sure SPI_BAUD is always
>= 2. Writing a value of 0 or 1 to the SPI_BAUD register disables the
serial clock.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Vitja Makarov [Tue, 7 Apr 2009 02:00:31 +0000 (19:00 -0700)]
Blackfin SPI Driver: ensure cache coherency before doing DMA
Flush or invalidate caches before doing DMA transfer, if needed.
[Mike Frysinger <vapier.adi@gmail.com>: add comment to address the
issue "Full duplex only works for non-DMA transfers".]
Signed-off-by: Vitja Makarov <vitja.makarov@gmail.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Herbert Valerio Riedel [Tue, 7 Apr 2009 02:00:30 +0000 (19:00 -0700)]
hwmon: add support for GMT G760A fan speed PWM controller
This controller can be found on the D-Link DNS-323 for instance, where
it is to be configured via static i2c_board_info in the board-specific
mach-orion/dns323-setup.c; this driver supports only the new-style
driver model.
Tested-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>
Signed-off-by: Matthew Palmer <mpalmer@debian.org>
Signed-off-by: Laurie Bradshaw <bradshaw.laurie@googlemail.com>
Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
KAMEZAWA Hiroyuki [Tue, 7 Apr 2009 02:00:30 +0000 (19:00 -0700)]
/proc/pid/maps: don't show pgoff of pure ANON VMAs
Recently, it's argued that what proc/pid/maps shows is ugly when a 32bit
binary runs on 64bit host.
/proc/pid/maps outputs vma's pgoff member but vma->pgoff is of no use
information is the vma is for ANON. With this patch, /proc/pid/maps shows
just 0 if no file backing store.
[akpm@linux-foundation.org: coding-style fixes]
[kamezawa.hiroyu@jp.fujitsu.com: coding-style fixes]
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mike Waychison <mikew@google.com>
Reported-by: Ying Han <yinghan@google.com>
Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Peter W Morreale [Tue, 7 Apr 2009 02:00:29 +0000 (19:00 -0700)]
mm: add /proc controls for pdflush threads
Add /proc entries to give the admin the ability to control the minimum and
maximum number of pdflush threads. This allows finer control of pdflush
on both large and small machines.
The rationale is simply one size does not fit all. Admins on large and/or
small systems may want to tune the min/max pdflush thread count to best
suit their needs. Right now the min/max is hardcoded to 2/8. While
probably a fair estimate for smaller machines, large machines with large
numbers of CPUs and large numbers of filesystems/block devices may benefit
from larger numbers of threads working on different block devices.
Even if the background flushing algorithm is radically changed, it is
still likely that multiple threads will be involved and admins would still
desire finer control on the min/max other than to have to recompile the
kernel.
The patch adds '/proc/sys/vm/nr_pdflush_threads_min' and
'/proc/sys/vm/nr_pdflush_threads_max' with r/w permissions.
The minimum value for nr_pdflush_threads_min is 1 and the maximum value is
the current value of nr_pdflush_threads_max. This minimum is required
since additional thread creation is performed in a pdflush thread itself.
The minimum value for nr_pdflush_threads_max is the current value of
nr_pdflush_threads_min and the maximum value can be 1000.
Documentation/sysctl/vm.txt is also updated.
[akpm@linux-foundation.org: fix comment, fix whitespace, use __read_mostly]
Signed-off-by: Peter W Morreale <pmorreale@novell.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Peter W Morreale [Tue, 7 Apr 2009 02:00:28 +0000 (19:00 -0700)]
mm: fix pdflush thread creation upper bound
Fix a race on creating pdflush threads. Without the patch, it is possible
to create more than MAX_PDFLUSH_THREADS threads, and this has been
observed in practice on IO loaded SMP machines.
The fix involves moving the lock around to protect the check against the
thread count and correctly dealing with thread creation failure.
This fix also _mostly_ repairs a race condition on how quickly the threads
are created. The original intent was to create a pdflush thread (up to
the max allowed) every second. Without this patch is is possible to
create NCPUS pdflush threads concurrently. The 'mostly' caveat is because
an assumption is made that thread creation will be successful. If we fail
to create the thread, the miss is not considered fatal. (we will try
again in 1 second)
Signed-off-by: Peter W Morreale <pmorreale@novell.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Randy Dunlap [Tue, 7 Apr 2009 02:00:26 +0000 (19:00 -0700)]
esp: fix section mismatch warning
Not critical.
WARNING: drivers/char/esp.o(.text+0x278): Section mismatch in reference from the function show_serial_version() to the variable .init.data:serial_version
The function show_serial_version() references
the variable __initdata serial_version.
This is often because show_serial_version lacks a __initdata
annotation or the annotation of serial_version is wrong.
WARNING: drivers/char/esp.o(.text+0x27d): Section mismatch in reference from the function show_serial_version() to the variable .init.data:serial_name
The function show_serial_version() references
the variable __initdata serial_name.
This is often because show_serial_version lacks a __initdata
annotation or the annotation of serial_name is wrong.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Andrew J. Robinson <arobinso@nyx.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Anton Vorontsov [Tue, 31 Mar 2009 22:23:41 +0000 (02:23 +0400)]
PCI: Fix oops in pci_vpd_truncate
pci_vpd_truncate() should check for dev->vpd->attr, otherwise this might
happen:
sky2 driver version 1.22
Unable to handle kernel paging request for data at address 0x0000000c
Faulting instruction address: 0xc01836fc
Oops: Kernel access of bad area, sig: 11 [#1]
[...]
NIP [
c01836fc] pci_vpd_truncate+0x38/0x40
LR [
c029be18] sky2_probe+0x14c/0x518
Call Trace:
[
ef82bde0] [
c029bda4] sky2_probe+0xd8/0x518 (unreliable)
[
ef82be20] [
c018a11c] local_pci_probe+0x24/0x34
[
ef82be30] [
c018a14c] pci_call_probe+0x20/0x30
[
ef82be50] [
c018a330] __pci_device_probe+0x64/0x78
[
ef82be60] [
c018a44c] pci_device_probe+0x30/0x58
[
ef82be80] [
c01aa270] really_probe+0x78/0x1a0
[
ef82bea0] [
c01aa460] __driver_attach+0xa4/0xa8
[
ef82bec0] [
c01a96ac] bus_for_each_dev+0x60/0x9c
[
ef82bef0] [
c01aa0b4] driver_attach+0x24/0x34
[
ef82bf00] [
c01a9e08] bus_add_driver+0x12c/0x1cc
[
ef82bf20] [
c01aa87c] driver_register+0x6c/0x110
[
ef82bf30] [
c018a770] __pci_register_driver+0x4c/0x9c
[
ef82bf50] [
c03782c8] sky2_init_module+0x30/0x40
[
ef82bf60] [
c0001dbc] do_one_initcall+0x34/0x1a0
[
ef82bfd0] [
c0362240] do_initcalls+0x38/0x58
This happens with CONFIG_SKY2=y, and "ip=on" kernel command line, so
pci_vpd_truncate() is called before late_initcall(pci_sysfs_init),
therefore ->attr isn't yet initialized.
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Tue, 7 Apr 2009 15:02:02 +0000 (08:02 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/security-testing-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
tomoyo: remove "undelete domain" command.
Linus Torvalds [Tue, 7 Apr 2009 14:42:25 +0000 (07:42 -0700)]
Merge git://git./linux/kernel/git/rusty/linux-2.6-module-and-param
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-module-and-param:
Revert "module: remove the SHF_ALLOC flag on the __versions section."
Linus Torvalds [Tue, 7 Apr 2009 14:40:55 +0000 (07:40 -0700)]
Merge branch 'merge' of git://git./linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (28 commits)
powerpc: Fix oops when loading modules
powerpc: Wire up preadv and pwritev
powerpc/ftrace: Fix printf format warning
powerpc/ftrace: Fix #if that should be #ifdef
powerpc: Fix ptrace compat wrapper for FPU register access
powerpc: Print information about mapping hw irqs to virtual irqs
powerpc: Correct dependency of KEXEC
powerpc: Disable VSX or current process in giveup_fpu/altivec
powerpc/pseries: Enable relay in pseries_defconfig
powerpc/pseries: Fix ibm,client-architecture comment
powerpc/pseries: Scan for all events in rtasd
powerpc/pseries: Add dispatch dispersion statistics
powerpc: Clean up some prom printouts
powerpc: Print progress of ibm,client-architecture method
powerpc: Remove duplicated #include's
powerpc/pmac: Fix internal modem IRQ on Wallstreet PowerBook
powerpc/wdrtas: Update wdrtas_get_interval to use rtas_data_buf
fsl-diu-fb: Pass the proper device for dma mapping routines
powerpc/pq2fads: Update device tree for use with device-tree-aware u-boot.
cpm_uart: Disable CPM udbg when re-initing CPM uart, even if not the console.
...
Ingo Molnar [Tue, 7 Apr 2009 06:16:50 +0000 (14:16 +0800)]
ramfs: fix double freeing s_fs_info on failed mount
If ramfs mount fails, s_fs_info will be freed twice in ramfs_fill_super()
and ramfs_kill_sb(), leading to kernel oops.
Consolidate and beautify the code.
Make sure s_fs_info and s_root are in known good states.
Acked-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Rusty Russell [Tue, 7 Apr 2009 07:42:43 +0000 (17:12 +0930)]
Revert "module: remove the SHF_ALLOC flag on the __versions section."
This reverts commit
9cb610d8e35fe3ec95a2fe2030b02f85aeea83c1.
This was an impressively stupid patch. Firstly, we reset the SHF_ALLOC
flag lower down in the same function, so the patch was useless. Even
better, find_sec() ignores sections with SHF_ALLOC not set, so
it breaks CONFIG_MODVERSIONS=y with CONFIG_MODULE_FORCE_LOAD=n, which
refuses to load the module since it can't find the __versions section.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Tetsuo Handa [Mon, 6 Apr 2009 11:49:14 +0000 (20:49 +0900)]
tomoyo: remove "undelete domain" command.
Since TOMOYO's policy management tools does not use the "undelete domain"
command, we decided to remove that command.
Signed-off-by: Kentaro Takeda <takedakn@nttdata.co.jp>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Toshiharu Harada <haradats@nttdata.co.jp>
Signed-off-by: James Morris <jmorris@namei.org>
Paul Mackerras [Mon, 6 Apr 2009 17:21:10 +0000 (17:21 +0000)]
powerpc: Fix oops when loading modules
This fixes a problem reported by Sean MacLennan where loading any
module would cause an oops. We weren't marking the pages containing
the module text as having hardware execute permission, due to a bug
introduced in commit
8d1cf34e ("powerpc/mm: Tweak PTE bit combination
definitions"), hence trying to execute the module text caused an
exception on processors that support hardware execute permission.
This adds _PAGE_HWEXEC to the definitions of PAGE_KERNEL_X and
PAGE_KERNEL_ROX to fix this problem.
Reported-by: Sean MacLennan <smaclennan@pikatech.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Stephen Rothwell [Mon, 6 Apr 2009 17:19:50 +0000 (17:19 +0000)]
powerpc: Wire up preadv and pwritev
[paulus@samba.org: changed to use syscall numbers 320 and 321 since
perf_counters is currently using 319.]
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Michael Ellerman [Mon, 6 Apr 2009 04:40:46 +0000 (04:40 +0000)]
powerpc/ftrace: Fix printf format warning
'tramp' is an unsigned long, so print it with %lx.
Fixes the following build warning:
arch/powerpc/kernel/ftrace.c:291: error: format ‘%x’ expects type ‘unsigned int’, but argument 2 has type ‘long unsigned int’
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Michael Ellerman [Mon, 6 Apr 2009 04:40:45 +0000 (04:40 +0000)]
powerpc/ftrace: Fix #if that should be #ifdef
Commit
bb7253403f7a4670a128e4c080fd8ea1bd4d5029 ("powerpc64,
ftrace: save toc only on modules for function graph"), added an
#if CONFIG_PPC64. This changes it to #ifdef.
Fixes the following warning on 32-bit builds:
arch/powerpc/kernel/ftrace.c:562:5: error: "CONFIG_PPC64" is not defined
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Michael Neuling [Sun, 5 Apr 2009 20:59:39 +0000 (20:59 +0000)]
powerpc: Fix ptrace compat wrapper for FPU register access
The ptrace compat wrapper mishandles access to the fpu registers. The
PTRACE_PEEKUSR and PTRACE_POKEUSR requests miscalculate the index into
the fpr array due to the broken FPINDEX macro. The
PPC_PTRACE_PEEKUSR_3264 request needs to use the same formula that the
native ptrace interface uses when operating on the register number (as
opposed to the 4-byte offset). The PPC_PTRACE_POKEUSR_3264 request
didn't take TS_FPRWIDTH into account.
Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Michael Ellerman [Sun, 5 Apr 2009 16:05:02 +0000 (16:05 +0000)]
powerpc: Print information about mapping hw irqs to virtual irqs
The irq remapping layer seems to cause some confusion when people
see a different irq number in /proc/interrupts vs the one they
request in their driver or DTS.
So have the irq remapping layer print out a message when we map an
irq. The message is only printed the first time the irq is mapped,
and it's KERN_DEBUG so most people won't see it.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Geert Uytterhoeven [Thu, 2 Apr 2009 06:25:41 +0000 (06:25 +0000)]
powerpc: Correct dependency of KEXEC
commit
28794d34ecb6815a3fa0a4256027c9b081a17c5f ("powerpc/kconfig: Kill
PPC_MULTIPLATFORM") broke KEXEC, by making it dependent on BOOK3S, while it
should be PPC_BOOK3S.
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Michael Neuling [Wed, 1 Apr 2009 18:02:42 +0000 (18:02 +0000)]
powerpc: Disable VSX or current process in giveup_fpu/altivec
When we call giveup_fpu, we need to need to turn off VSX for the
current process. If we don't, on return to userspace it may execute a
VSX instruction before the next FP instruction, and not have its
register state refreshed correctly from the thread_struct. Ditto for
altivec.
This caused a bug where an unaligned lfs or stfs results in
fix_alignment calling giveup_fpu so it can use the FPRs (in order to
do a single <-> double conversion), and then returning to userspace
with FP off but VSX on. Then if a VSX instruction is executed, before
another FP instruction, it will proceed without another exception and
hence have the incorrect register state for VSX registers 0-31.
lfs unaligned <- alignment exception turns FP off but leaves VSX on
VSX instruction <- no exception since VSX on, hence we get the
wrong VSX register values for VSX registers 0-31,
which overlap the FPRs.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Blanchard [Tue, 31 Mar 2009 20:14:25 +0000 (20:14 +0000)]
powerpc/pseries: Enable relay in pseries_defconfig
Enable relay in pseries config, ppc64_defconfig had it enabled but pseries
did not.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Blanchard [Tue, 31 Mar 2009 20:14:01 +0000 (20:14 +0000)]
powerpc/pseries: Fix ibm,client-architecture comment
We specify a 64MB RMO, but the comment says 128MB.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Blanchard [Tue, 31 Mar 2009 20:13:27 +0000 (20:13 +0000)]
powerpc/pseries: Scan for all events in rtasd
Instead of checking for known events, pass in all 1s so we handle future
event types. We were currently missing the IO event type.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Blanchard [Tue, 31 Mar 2009 20:12:44 +0000 (20:12 +0000)]
powerpc/pseries: Add dispatch dispersion statistics
PHYP tells us how often a shared processor dispatch changed physical cpus.
This can highlight performance problems caused by the hypervisor.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Blanchard [Tue, 31 Mar 2009 20:06:15 +0000 (20:06 +0000)]
powerpc: Clean up some prom printouts
Make all messages consistent, some have spaces before the "...", some do not.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Anton Blanchard [Tue, 31 Mar 2009 20:06:14 +0000 (20:06 +0000)]
powerpc: Print progress of ibm,client-architecture method
The ibm,client-architecture method will often cause a reconfiguration reboot.
When this happens the last thing we see is:
Hypertas detected, assuming LPAR !
Which doesn't explain what just happened. Wrap the ibm,client-architecture
so it's clear what is going on:
Calling ibm,client-architecture... done
In order to maintain the law of conservation of screen real estate, downgrade
two other messages to debug.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Huang Weiyi [Tue, 31 Mar 2009 02:41:18 +0000 (02:41 +0000)]
powerpc: Remove duplicated #include's
Remove duplicated #include's in
- arch/powerpc/include/asm/ps3fb.h
- arch/powerpc/kernel/setup-common.c
Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Benjamin Herrenschmidt [Mon, 30 Mar 2009 17:34:04 +0000 (17:34 +0000)]
powerpc/pmac: Fix internal modem IRQ on Wallstreet PowerBook
The (relatively) new pmac_zilog driver doesn't use the pre-munged
IRQ numbers from the macio_dev unlike other macio things, it
directly maps it off the OF device-tree.
It does that because it can be initialized much earlier than the
registration of the macio devices, in order to get a serial
console early.
Unfortunately, that means that it "misses" some fixups done
by the macio layer to work around missing interrupt descriptions
in the device-tree of the Wallstreet machines.
This patch brings the necessary workaround into the pmac_zilog
driver itself to bring it back to working condition.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Mark Nelson [Mon, 23 Mar 2009 20:30:41 +0000 (20:30 +0000)]
powerpc/wdrtas: Update wdrtas_get_interval to use rtas_data_buf
The buffer passed to the ibm,get-system-parameter RTAS call must be
in the RMA. To ensure we pass an address in the RMA use rtas_data_buf
for the actual RTAS call and then copy the result to value. We can't
just make it static because this can be compiled in as a module.
Also add the WDRTAS_SP_SPI_LEN so we don't litter '4' throughout the
function.
Signed-off-by: Mark Nelson <markn@au1.ibm.com>
Tested-by: Adrian Reber <adrian@lisas.de>
Acked-by: Utz Bacher <utz.bacher@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Tue, 7 Apr 2009 02:54:08 +0000 (12:54 +1000)]
Merge branch 'next' of /linux/kernel/git/galak/powerpc into merge
Linus Torvalds [Tue, 7 Apr 2009 01:08:58 +0000 (18:08 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/mchehab/linux-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (120 commits)
cx231xx: Convert to snd_card_create()
V4L/DVB (11440): PWC: fix build error when CONFIG_INPUT=m
V4L/DVB (11439): UVC: uvc_status_cleanup(): undefined reference to `input_unregister_device'
V4L/DVB (11438): au0828: fix Kconfig dependance
V4L/DVB (11437): pvrusb2: Drop client_register/unregister stubs
V4L/DVB (11436): radio-mr800: convert to to v4l2_device
V4L/DVB (11435): dsbr100 radio: convert to to v4l2_device
V4L/DVB: zr364xx: remove unused #include <version.h>
V4L/DVB: usbvision: remove unused #include <version.h>
V4L/DVB (11427): gspca - m5602: Minor cleanups
V4L/DVB (11426): gspca - m5602: Don't touch hflip/vflip register on Read/Modify/Write
V4L/DVB (11425): gspca - m5602: Move the vflip quirk to probe stage.
V4L/DVB (11424): gspca - m5602-ov9650: Use the local ctrl cache. Adjust image on vflip.
V4L/DVB (11423): gspca - m5602-ov9650: Add a disconnect hook, setup a ctrl cache ctrl.
V4L/DVB (11422): gspca - m5602-ov9650: Replace a magic constant with a define
V4L/DVB (11421): gspca - m5602-ov9650: Synthesize modesetting.
V4L/DVB (11420): gspca - m5602: Improve error handling in the ov9650 driver
V4L/DVB (11419): gspca - m5602-ov9650: Don't read exposure data from COM1.
V4L/DVB (11418): gspca - m5602-ov9650: Auto white balancing is on by default
V4L/DVB (11417): gspca - m5602-ov9650: Autogain is on by default
...
Linus Torvalds [Tue, 7 Apr 2009 01:05:43 +0000 (18:05 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
b44: Use kernel DMA addresses for the kernel DMA API
forcedeth: Fix resume from hibernation regression.
xfrm: fix fragmentation on inter family tunnels
ibm_newemac: Fix dangerous struct assumption
gigaset: documentation update
gigaset: in file ops, check for device disconnect before anything else
bas_gigaset: use tasklet_hi_schedule for timing critical tasklets
net/802/fddi.c: add MODULE_LICENSE
smsc911x: remove unused #include <linux/version.h>
axnet_cs: fix phy_id detection for bogus Asix chip.
bnx2: Use request_firmware()
b44: Fix sizes passed to b44_sync_dma_desc_for_{device,cpu}()
socket: use percpu_add() while updating sockets_in_use
virtio_net: Set the mac config only when VIRITO_NET_F_MAC
myri_sbus: use request_firmware
e1000: fix loss of multicast packets
vxge: should include tcp.h
Conflict in firmware/WHENCE (SCSI vs net firmware)
Michael Buesch [Mon, 6 Apr 2009 09:52:27 +0000 (09:52 +0000)]
b44: Use kernel DMA addresses for the kernel DMA API
We must not use the device DMA addresses for the kernel DMA API, because
device DMA addresses have an additional offset added for the SSB translation.
Use the original dma_addr_t for the sync operation.
Cc: stable@kernel.org
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ed Swierk [Tue, 7 Apr 2009 00:49:12 +0000 (17:49 -0700)]
forcedeth: Fix resume from hibernation regression.
Reset phy state on resume, fixing a regression caused by powering down
the phy on hibernate.
Signed-off-by: Ed Swierk <eswierk@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Mauro Carvalho Chehab [Tue, 7 Apr 2009 00:25:29 +0000 (21:25 -0300)]
cx231xx: Convert to snd_card_create()
Convert from snd_card_new() to the new snd_card_create() function.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Randy Dunlap [Mon, 6 Apr 2009 21:59:31 +0000 (18:59 -0300)]
V4L/DVB (11440): PWC: fix build error when CONFIG_INPUT=m
Fix build errors when USB_PWC=y and INPUT=m.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Randy Dunlap [Mon, 6 Apr 2009 21:57:55 +0000 (18:57 -0300)]
V4L/DVB (11439): UVC: uvc_status_cleanup(): undefined reference to `input_unregister_device'
Fix build errors when USB_VIDEO_CLASS=y and INPUT=m.
Fixes kernel bugzilla #12671.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Alexander Beregalov [Mon, 6 Apr 2009 02:14:43 +0000 (23:14 -0300)]
V4L/DVB (11438): au0828: fix Kconfig dependance
Fix this build error:
ERROR: "videobuf_queue_vmalloc_init" [drivers/media/video/au0828/au0828.ko] undefined!
ERROR: "videobuf_vmalloc_free" [drivers/media/video/au0828/au0828.ko] undefined!
ERROR: "videobuf_to_vmalloc" [drivers/media/video/au0828/au0828.ko] undefined!
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Jean Delvare [Sat, 4 Apr 2009 21:13:33 +0000 (18:13 -0300)]
V4L/DVB (11437): pvrusb2: Drop client_register/unregister stubs
The client_register and client_unregister methods are optional so
there is no point in defining stub ones. Especially when these methods
are likely to be removed soon.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Alexey Klimov [Fri, 3 Apr 2009 21:45:27 +0000 (18:45 -0300)]
V4L/DVB (11436): radio-mr800: convert to to v4l2_device
radio-mr800: convert to to v4l2_device.
Signed-off-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Alexey Klimov [Fri, 3 Apr 2009 21:45:17 +0000 (18:45 -0300)]
V4L/DVB (11435): dsbr100 radio: convert to to v4l2_device
dsbr100: convert to v4l2_device.
Signed-off-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Huang Weiyi [Thu, 2 Apr 2009 15:30:26 +0000 (12:30 -0300)]
V4L/DVB: zr364xx: remove unused #include <version.h>
Remove unused #include <version.h> in drivers/media/video/zr364xx.c.
Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Huang Weiyi [Thu, 2 Apr 2009 15:30:19 +0000 (12:30 -0300)]
V4L/DVB: usbvision: remove unused #include <version.h>
Remove unused #include <version.h> in
drivers/media/video/usbvision/usbvision-i2c.c.
Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Erik Andr?n [Sun, 4 Jan 2009 10:35:27 +0000 (07:35 -0300)]
V4L/DVB (11427): gspca - m5602: Minor cleanups
Remove an unnecessary error check and reorder some code.
Signed-off-by: Erik Andr?n <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Erik Andr?n [Sun, 4 Jan 2009 10:28:42 +0000 (07:28 -0300)]
V4L/DVB (11426): gspca - m5602: Don't touch hflip/vflip register on Read/Modify/Write
Touching the hflip/vflip register while doing the read/modify/write corrupts the image. Just read from the sensor ctrl cache instead and all is good.
Signed-off-by: Erik Andr?n <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Erik Andr?n [Sun, 4 Jan 2009 07:52:50 +0000 (04:52 -0300)]
V4L/DVB (11425): gspca - m5602: Move the vflip quirk to probe stage.
The vflip quirk is better checked at probe time as it's only needed once.
Also add an extra reset at init time to resolve a suspend to ram regression.
Signed-off-by: Erik Andr?n <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Erik Andr?n [Sat, 3 Jan 2009 16:58:12 +0000 (13:58 -0300)]
V4L/DVB (11424): gspca - m5602-ov9650: Use the local ctrl cache. Adjust image on vflip.
Signed-off-by: Erik Andr?n <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Erik Andr?n [Sat, 3 Jan 2009 15:10:11 +0000 (12:10 -0300)]
V4L/DVB (11423): gspca - m5602-ov9650: Add a disconnect hook, setup a ctrl cache ctrl.
Reading and writing to a register doesn't always work reliably. Add a cache
and ensure that it is deallocated properly upon module disconnect.
Signed-off-by: Erik Andr?n <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Erik Andr?n [Sat, 3 Jan 2009 13:56:51 +0000 (10:56 -0300)]
V4L/DVB (11422): gspca - m5602-ov9650: Replace a magic constant with a define
Signed-off-by: Erik Andr?n <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Erik Andr?n [Sat, 3 Jan 2009 13:55:52 +0000 (10:55 -0300)]
V4L/DVB (11421): gspca - m5602-ov9650: Synthesize modesetting.
Previously all resolution setting was done with precalculated tables.
When the image is vflipped we need to adjust the alignment which would
require another table. Now we can adjust the parameters on the fly instead.
Signed-off-by: Erik Andr?n <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Erik Andr?n [Fri, 2 Jan 2009 20:58:08 +0000 (17:58 -0300)]
V4L/DVB (11420): gspca - m5602: Improve error handling in the ov9650 driver
Some errors were not propagated properly.
Signed-off-by: Erik Andrén <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Erik Andr?n [Wed, 31 Dec 2008 10:25:42 +0000 (07:25 -0300)]
V4L/DVB (11419): gspca - m5602-ov9650: Don't read exposure data from COM1.
ov9650: Reading the COM1 register corrupts the image.
Decrease the granularity of the exposure and limit its upper range
as setting such high values doesn't have any effect on the image.
Signed-off-by: Erik Andr?n <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Erik Andr?n [Wed, 31 Dec 2008 09:36:52 +0000 (06:36 -0300)]
V4L/DVB (11418): gspca - m5602-ov9650: Auto white balancing is on by default
Signed-off-by: Erik Andr?n <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Erik Andr?n [Wed, 31 Dec 2008 07:49:33 +0000 (04:49 -0300)]
V4L/DVB (11417): gspca - m5602-ov9650: Autogain is on by default
Autogain is on by default, properly set the default value in the v4l2 ctrl.
Signed-off-by: Erik Andr?n <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Erik Andr?n [Tue, 30 Dec 2008 20:35:34 +0000 (17:35 -0300)]
V4L/DVB (11416): gspca - m5602: Constify all sensor structs
Signed-off-by: Erik Andrén <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Erik Andr?n [Tue, 30 Dec 2008 20:18:23 +0000 (17:18 -0300)]
V4L/DVB (11415): gspca - m5602: Remove an unused member in the sd struct.
Remove an unused sd struct member. Remove a redundant define while we're at it.
Signed-off-by: Erik Andrén <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Erik Andr?n [Tue, 30 Dec 2008 20:06:55 +0000 (17:06 -0300)]
V4L/DVB (11414): gspca - m5602-mt9m111: Move v4l2 controls to main sensor file.
Move over the v4l2 controls to the sensor specific source file.
Remove the now redundant sensor struct member.
Signed-off-by: Erik Andrén <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Erik Andr?n [Tue, 30 Dec 2008 19:48:42 +0000 (16:48 -0300)]
V4L/DVB (11413): gspca - m5602-mt9m111: Separate mode vectors per sensor.
By separating the supported for each sensor into a separate vector we can
eliminate the nmodes variable and instead calculate it at runtime.
Signed-off-by: Erik Andr?n <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Erik Andr?n [Tue, 30 Dec 2008 18:29:48 +0000 (15:29 -0300)]
V4L/DVB (11412): gspca - m5602-ov9650: Checkpatch fixes
Signed-off-by: Erik Andrén <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Erik Andr?n [Tue, 30 Dec 2008 18:27:17 +0000 (15:27 -0300)]
V4L/DVB (11411): gspca - m5602: Rework v4l ctrl handling in all sensors
Previously, all sensors allocated a part of a large ctrl vector.
Define this vector separately for each sensor instead.
Signed-off-by: Erik Andrén <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Erik Andr?n [Tue, 30 Dec 2008 10:47:11 +0000 (07:47 -0300)]
V4L/DVB (11410): gspca - m5602-ov9650: Always init the ov9650 before starting a stream
This is a hack preventing a suspend-to-ram/disk regression.
Signed-off-by: Erik Andrén <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Erik Andr?n [Mon, 29 Dec 2008 15:49:25 +0000 (12:49 -0300)]
V4L/DVB (11409): gspca - m5602-ov9650: Set the ov9650 sensor in soft sleep when inactive.
In order to save energy, put the sensor in soft sleep mode when not active
Signed-off-by: Erik Andrén <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Lukas Karas [Sun, 28 Dec 2008 17:09:21 +0000 (14:09 -0300)]
V4L/DVB (11408): gspca - m5602-s5k83a: Add led support to the s5k83a sensor.
This patch toggles the led seen on many laptops having a m5602 connected
to a Samsung s5k83a sensor.
Signed-off-by: Lukas Karas <lukas.karas@centrum.cz>
Signed-off-by: Erik Andr?n <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Erik Andr?n [Sat, 27 Dec 2008 17:06:06 +0000 (14:06 -0300)]
V4L/DVB (11407): gspca - m5602-ov9650: Clean up ov9650_start() function.
Cleans some unnecessary temporary variable usage in the ov9650 start function.
Signed-off-by: Erik Andr?n <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Erik Andr?n [Sat, 27 Dec 2008 16:30:10 +0000 (13:30 -0300)]
V4L/DVB (11406): gspca - m5602-ov9650: Add QCIF resolution support
Adds QCIF support for the ov9650 sensor
Signed-off-by: Erik Andr?n <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Erik Andr?n [Sat, 27 Dec 2008 15:28:00 +0000 (12:28 -0300)]
V4L/DVB (11405): gspca - m5602: Simplify error handling
Simplfy error handling by replacing goto statements with return equivalents.
Signed-off-by: Erik Andr?n <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Erik Andr?n [Fri, 26 Dec 2008 15:57:42 +0000 (12:57 -0300)]
V4L/DVB (11404): gspca - m5602-s5k4aa: Add start function and VGA resolution init.
Signed-off-by: Erik Andr?n <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Erik Andr?n [Fri, 26 Dec 2008 14:56:43 +0000 (11:56 -0300)]
V4L/DVB (11403): gspca - m5602-s5k4aa: No more "default" mode
Signed-off-by: Erik Andr?n <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Jean-Francois Moine [Thu, 26 Mar 2009 09:03:28 +0000 (06:03 -0300)]
V4L/DVB (11402): gspca - vc032x: Remove the JPEG tables of mi1320_soc.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Stefan Richter [Wed, 1 Apr 2009 20:25:00 +0000 (17:25 -0300)]
Revert "V4L/DVB (10962): fired-avc: fix printk formatting warning."
Commit
34aecd2851bba5c2b7dae2f0dbe8e629b1c5e4ac was made obsolete
and invalid by commit
40cf65d149053889c8876c6c2b4ce204fde55baa.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
David Wong [Wed, 1 Apr 2009 07:35:10 +0000 (04:35 -0300)]
V4L/DVB (11398): Support for Legend Silicon LGS8913/LGS8GL5/LGS8GXX China DMB-TH digital demodulator
This patch contains the unified driver for Legend Silicon LGS8913 and
LGS8GL5. It should replace lgs8gl5.c in media/dvb/frontends in the future.
Signed-off-by: David T.L. Wong <davidtlwong@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / log