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Suspend to RAM is reported to break on some machines as a result of
attempting to put one of driverless PCI devices into a low power
state. Avoid that by not attepmting to power manage driverless
devices during suspend.
Fix up pci_pm_poweroff() after a previous incomplete fix for the same
thing during hibernation.
This patch is reported to fix the regression from 2.6.28 tracked as
http://bugzilla.kernel.org/show_bug.cgi?id=12605
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Reported-and-tested-by: Eric Sesterhenn <snakebyte@gmx.de>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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This patch makes the ROM reading code return an error to user space if
the size of the ROM read is equal to 0.
The patch also emits a warnings if the contents of the ROM are invalid,
and documents the effects of the "enable" file on ROM reading.
Signed-off-by: Timothy S. Nelson <wayland@wayland.id.au>
Acked-by: Alex Villacis-Lasso <a_villacis@palosanto.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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We only want to disable ASPM when the last function is removed from
the parent's device list. We determine this by checking to see if
the parent's device list is completely empty.
Unfortunately, we never hit that code because the parent is considered
an upstream port, and never had an ASPM link_state associated with it.
The early check for !link_state causes us to return early, we never
discover that our device list is empty, and thus we never remove the
downstream ports' link_state nodes.
Instead of checking to see if the parent's device list is empty, we can
check to see if we are the last device on the list, and if so, then we
know that we can clean up properly.
Cc: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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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: (40 commits)
Blackfin arch: Remove outdated code
Blackfin arch: Fix udelay implementation
Blackfin arch: Update Copyright information
Blackfin arch: Add BF561 PPI POLS, POLC Masks
Blackfin arch: Update CM-BF527 kernel config
Blackfin arch: define bfin_memmap as static since it is only used here
Blackfin arch: cplb mananger: use a do...while loop rather than a for loop
Blackfin arch: fix bug - traps test case 19 for exception 0x2d fails
Blackfin arch: add platform device bfin_mii-bus and KSZ8893M switch driver platform resources to board files
Blackfin arch: build jtag tty driver as a module by default
Blackfin arch: fix 2 bugs related to debug
Blackfin arch: Add ANOMALY_05000380 to BF54x to kill the compile warning
Blackfin arch: Fix bug - 561 SMP kernel can't boot from jffs2
Blackfin arch: base SIC_IWR# programming on whether the MMR exists
Blackfin arch: read SYSCR on newer parts that mirror the bits of SWRST in it
Blackfin arch: fixup board init function name
Blackfin arch: drop CONFIG_I2C_BOARDINFO ifdefs
Blackfin arch: bfin_reset->_bfin_reset redirection no longer needed
Blackfin arch: sync reboot handler with version in u-boot
Blackfin arch: Faster Implementation of csum_tcpudp_nofold()
...
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc64: Kill bogus TPC/address truncation during 32-bit faults.
sparc: fixup for sparseirq changes
sparc64: Validate kernel generated fault addresses on sparc64.
sparc64: On non-Niagara, need to touch NMI watchdog in NOHZ mode.
sparc64: Implement NMI watchdog on capable cpus.
sparc: Probe PMU type and record in sparc_pmu_type.
sparc64: Move generic PCR support code to seperate file.
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
sunrpc: fix rdma dependencies
e1000: Fix PCI enable to honor the need_ioport flag
sgi-xp: link XPNET's net_device_ops to its net_device structure
pcnet_cs: Fix misuse of the equality operator.
hso: add new device id's
dca: redesign locks to fix deadlocks
cassini/sungem: limit reaches -1, but 0 tested
net: variables reach -1, but 0 tested
qlge: bugfix: Add missing netif_napi_del call.
qlge: bugfix: Add flash offset for second port.
qlge: bugfix: Fix endian issue when reading flash.
udp: increments sk_drops in __udp_queue_rcv_skb()
net: Fix userland breakage wrt. linux/if_tunnel.h
net: packet socket packet_lookup_frame fix
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* 'for-linus' of git://git.o-hand.com/linux-mfd:
mfd: Remove non exported references from pcf50633
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The removed version with the loop registers saved on the stack was
originally intended to workaround the missing toolchain support for
LoopReg Clobbers.
Since our toolchain now supports these there is no point in keeping this
workaround. And since we don't touch LoopRegs anymore we're no longer
subject for ANOMALY_05000312.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Avoid possible overflow during 32*32->32 multiplies.
Reported-by: Marco Reppenhagen <marco.reppenhagen@auerswald.de>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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use a do...while loop rather than a for loop to get slightly better
optimization and to avoid gcc "may be used uninitialized" warnings ...
we know that the [id]cplb_nr_bounds variables will never be 0, so this
is OK
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Enable null pointer checking for ICPLBs. The code was there but for
some reason I had commented it out at some stage during development.
Should restrict this to 1K since atomic ops start there.
Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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platform resources to board files
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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- unable to single step over emuexcpt instruction
- gdbproxy goes into infinite loop when doing gdb does "next" over
"emuexcpt"
Don't decrement PC after software breakpoint.
Signed-off-by: Jie Zhang <jie.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Signed-off-by: Bryan Wu <cooloney@kernel.org>
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bss_l2 section is garbage when the data in this section is used by
_bfin_relocate_l1_mem, so move the zero out function ahead.
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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base SIC_IWR# programming on whether the MMR exists
rather than having to maintain another list of processors
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Drop CONFIG_I2C_BOARDINFO ifdefs as the common i2c header handles this
already by stubbing things out
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Avoid conditional branch instructions during carry bit additions.
Special thanks to Bernd.
Simplify: Use ((len + proto) << 8) like every other __LITTLE_ENDIAN__ machine
Cc: Bernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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compare to BF527
[Mike Frysinger <vapier.adi@gmail.com>: keep the ifdef nest down]
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Signed-off-by: Grace Pan <grace.pan@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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[Mike Frysinger <vapier.adi@gmail.com>:
- setup P_DEFAULT_BOOT_SPI_CS for every arch based on
the default bootrom behavior and convert all our boards
to it
- revert previous anomaly change ... bf51x is not affected
by anomaly 05000353]
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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remove subscribers-only marking as the list is
automatically & silently moderated for people
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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to be discontiguous
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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merge more of the bf54x and !bf54x gpio code together to
cut down on #ifdef mess
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Signed-off-by: Jie Zhang <jie.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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According to the documentation gpio_free should only be called from task
context only. To make this more explicit add a might sleep to all
implementations.
This patch changes the gpio_free implementations for the blackfin
architecture.
Signed-off-by: Uwe Kleine-Koenig <ukleinek@strlen.de>
Cc: David Brownell <david-b@pacbell.net>
Acked-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Make sure we don't accidently re-enable interrupts if we are being
called in atomic context
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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debugging).
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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when requesting a GPIO for the first time, the POLAR setting is not
set to a sane state. this can lead to indeterminate behavior that
cannot be resolved without an explicit write to the Blackfin port POLAR
register.
when requesting a GPIO for the first time via gpio_request(), the POLAR
setting for the GPIO in question should be set to sane state. this
should occur if the GPIO has not been allocated in any other way.
some examples:
- when doing something like "request_irq(); gpio_request();" on the
same GPIO, the POLAR setting should not be reset.
- when doing "gpio_request(); gpio_request();" on the same GPIO, the
POLAR setting should be reset only the first time and not the second.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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don't get freed with peripheral_free_list
Remove erroneous check_gpio(ident) in peripheral_free()
Reported-by: Michael McTernan <mmcternan@airvana.com>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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On BF561 EBIU_SDGCTL bit 31 controls the SDRAM external data
path width, typically set 0 for a 32-bit bus width. On other
Blackfin derivatives this bit should be set by default.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Dmacopy failed in BF537-STAMP when copy from SRAM to SDRAM and kernel
will reboot automatically.
Fixing by doing a SSYNC before mucking with DMA registers
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
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Commit 05fe478dd04e02fa230c305ab9b5616669821dd3 introduced some
@wbc->nr_to_write breakage.
It made the following changes:
1. Decrement wbc->nr_to_write instead of nr_to_write
2. Decrement wbc->nr_to_write _only_ if wbc->sync_mode == WB_SYNC_NONE
3. If synced nr_to_write pages, stop only if if wbc->sync_mode ==
WB_SYNC_NONE, otherwise keep going.
However, according to the commit message, the intention was to only make
change 3. Change 1 is a bug. Change 2 does not seem to be necessary,
and it breaks UBIFS expectations, so if needed, it should be done
separately later. And change 2 does not seem to be documented in the
commit message.
This patch does the following:
1. Undo changes 1 and 2
2. Add a comment explaining change 3 (it very useful to have comments
in _code_, not only in the commit).
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Acked-by: Nick Piggin <npiggin@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The @fnac.net will be shut down within a couple of months, so fix my
email address.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* 'linux-next' of git://git.infradead.org/ubifs-2.6:
UBIFS: remove fast unmounting
UBIFS: return sensible error codes
UBIFS: remount ro fixes
UBIFS: spelling fix 'date' -> 'data'
UBIFS: sync wbufs after syncing inodes and pages
UBIFS: fix LPT out-of-space bug (again)
UBIFS: fix no_chk_data_crc
UBIFS: fix assertions
UBIFS: ensure orphan area head is initialized
UBIFS: always clean up GC LEB space
UBIFS: add re-mount debugging checks
UBIFS: fix LEB list freeing
UBIFS: simplify locking
UBIFS: document dark_wm and dead_wm better
UBIFS: do not treat all data as short term
UBIFS: constify operations
UBIFS: do not commit twice
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