Only the W83627HF could be accessed through I2C. All other supported
chips are LPC-only, so they do not have I2C address registers. Don't
write to nonexistent or reserved registers on these chips.
Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Guenter Roeck <linux@roeck-us.net>
Jean Delvare [Sun, 28 Oct 2012 23:01:25 +0000 (10:01 +1100)]
hwmon: (w83627hf) Add support for suspend
On suspend some register values are lost, most notably the Value RAM
areas but also other limits. Restore them on resume. On top of that,
some fixups are needed to work around BIOS bugs, in particular when
the BIOS omits running the same initialization sequence on resume
that it does after boot. In that case we have to carry initialization
over suspend.
Jean Delvare [Sun, 28 Oct 2012 23:01:25 +0000 (10:01 +1100)]
hwmon: Fix chip feature table headers
These got broken by recent patches fixing checkpatch warnings in these
drivers. The trick is that the patches themselves looked good, but the
source files after applying them do not. That's why I am not a big fan
of using tabs inside comments.
Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Guenter Roeck <linux@roeck-us.net>
Jean Delvare [Sun, 28 Oct 2012 23:01:25 +0000 (10:01 +1100)]
hwmon: (w83627ehf) Force initial bank selection
Don't assume bank 0 is selected at device probe time. This may not be
the case. Force bank selection at first register access to guarantee
that we read the right registers upon driver loading.
Signed-off-by: Jean Delvare <khali@linux-fr.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Cc: stable@vger.kernel.org
Jean Delvare [Sun, 28 Oct 2012 23:01:22 +0000 (10:01 +1100)]
i2c-i801: Simplify dependency towards GPIOLIB
Arbitrarily selecting GPIOLIB causes trouble on some architectures,
so don't do that. Instead, just make the optional multiplexing code
depend on CONFIG_I2C_MUX_GPIO instead of CONFIG_I2C_MUX for now. We
can revisit if the i2c-i801 driver ever supports other multiplexing
flavors.
Also make that optional code depend on DMI, as it won't do anything
without that.
Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Fengguang Wu <fengguang.wu@intel.com>
David S. Miller [Sun, 28 Oct 2012 20:26:37 +0000 (13:26 -0700)]
qlogicpti: Fix build warning.
The build warns:
drivers/scsi/qlogicpti.c: In function 'qpti_sbus_probe':
drivers/scsi/qlogicpti.c:1316:45: warning: passing argument 1 of 'scsi_host_alloc' discards 'const' qualifier from pointer target type [enabled by default]
include/scsi/scsi_host.h:778:26: note: expected 'struct scsi_host_template *' but argument is of type 'const struct scsi_host_template *'
The problem is that of_device_id->data is a const void pointer.
This is pretty silly in this specific instance, because for all
matched device IDs we set match->data to the same value,
&qpti_template.
So just use that directly instead of the unnecessary and improperly
typed abstraction.
Signed-off-by: David S. Miller <davem@davemloft.net>
The comment above fw_file_size() suggests it is noinline for stack size
reasons. Use noinline_for_stack to make this more clear.
Cc: Ming Lei <ming.lei@canonical.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net> Acked-by: Ming Lei <ming.lei@canonical.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Linus Torvalds [Sun, 28 Oct 2012 18:14:52 +0000 (11:14 -0700)]
Merge tag 'ktest-v3.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest
Pull ktest confusion fix from Steven Rostedt:
"With the v3.7-rc2 kernel, the network cards on my target boxes were
not being brought up.
I found that the modules for the network was not being installed.
This was due to the config CONFIG_MODULES_USE_ELF_RELA that came
before CONFIG_MODULES, and confused ktest in thinking that
CONFIG_MODULES=y was not found.
Ktest needs to test all configs and not just stop if something starts
with CONFIG_MODULES."
* tag 'ktest-v3.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest: Fix ktest confusion with CONFIG_MODULES_USE_ELF_RELA
Linus Torvalds [Sun, 28 Oct 2012 18:13:54 +0000 (11:13 -0700)]
Merge tag 'spi-mxs' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc
Pull minor spi MXS fixes from Mark Brown:
"These fixes are both pretty minor ones and are driver local."
* tag 'spi-mxs' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc:
spi: mxs: Terminate DMA in case of DMA timeout
spi: mxs: Assign message status after transfer finished
Andrew Lunn [Sun, 28 Oct 2012 15:01:11 +0000 (16:01 +0100)]
Regulator: core: Unregister when gpio request fails.
If the gpio_request_one() fails, or returns EPROBE_DEFER, the
regulator must be device_unregister()ed. When this is not done,
there are WARNING: from sysfs:
WARNING: at fs/sysfs/file.c:343 sysfs_open_file+0x238/0x268()
Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Linus Torvalds [Sun, 28 Oct 2012 18:12:38 +0000 (11:12 -0700)]
Merge tag 'fixes-for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm-soc fixes from Arnd Bergmann:
"Bug fixes for a number of ARM platforms, mostly OMAP, imx and at91.
These come a little later than I had hoped but unfortunately we had a
few of these patches cause regressions themselves and had to work out
how to deal with those in the meantime."
* tag 'fixes-for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (38 commits)
Revert "ARM i.MX25: Fix PWM per clock lookups"
ARM: versatile: fix versatile_defconfig
ARM: mvebu: update defconfig with 3.7 changes
ARM: at91: fix at91x40 build
ARM: socfpga: Fix socfpga compilation with early_printk() enabled
ARM: SPEAr: Remove unused empty files
MAINTAINERS: Add arm-soc tree entry
ARM: dts: mxs: add the "clock-names" for gpmi-nand
ARM: ux500: Correct SDI5 address and add some format changes
ARM: ux500: Specify AMBA Primecell IDs for Nomadik I2C in DT
ARM: ux500: Fix build error relating to IRQCHIP_SKIP_SET_WAKE
ARM: at91: drop duplicated config SOC_AT91SAM9 entry
ARM: at91/i2c: change id to let i2c-at91 work
ARM: at91/i2c: change id to let i2c-gpio work
ARM: at91/dts: at91sam9g20ek_common: Fix typos in buttons labels.
ARM: at91: fix external interrupt specification in board code
ARM: at91: fix external interrupts in non-DT case
ARM: at91: at91sam9g10: fix SOC type detection
ARM: at91/tc: fix typo in the DT document
ARM: AM33XX: Fix configuration of dmtimer parent clock by dmtimer driverDate:Wed, 17 Oct 2012 13:55:55 -0500
...
Mikulas Patocka [Mon, 15 Oct 2012 21:20:17 +0000 (17:20 -0400)]
Lock splice_read and splice_write functions
Functions generic_file_splice_read and generic_file_splice_write access
the pagecache directly. For block devices these functions must be locked
so that block size is not changed while they are in progress.
This patch is an additional fix for commit b87570f5d349 ("Fix a crash
when block device is read and block size is changed at the same time")
that locked aio_read, aio_write and mmap against block size change.
Mikulas Patocka [Mon, 22 Oct 2012 23:39:16 +0000 (19:39 -0400)]
percpu-rw-semaphores: use rcu_read_lock_sched
Use rcu_read_lock_sched / rcu_read_unlock_sched / synchronize_sched
instead of rcu_read_lock / rcu_read_unlock / synchronize_rcu.
This is an optimization. The RCU-protected region is very small, so
there will be no latency problems if we disable preempt in this region.
So we use rcu_read_lock_sched / rcu_read_unlock_sched that translates
to preempt_disable / preempt_disable. It is smaller (and supposedly
faster) than preemptible rcu_read_lock / rcu_read_unlock.
Mikulas Patocka [Mon, 22 Oct 2012 23:37:47 +0000 (19:37 -0400)]
percpu-rw-semaphores: use light/heavy barriers
This patch introduces new barrier pair light_mb() and heavy_mb() for
percpu rw semaphores.
This patch fixes a bug in percpu-rw-semaphores where a barrier was
missing in percpu_up_write.
This patch improves performance on the read path of
percpu-rw-semaphores: on non-x86 cpus, there was a smp_mb() in
percpu_up_read. This patch changes it to a compiler barrier and removes
the "#if defined(X86) ..." condition.
Joe Perches [Sun, 28 Oct 2012 08:05:54 +0000 (01:05 -0700)]
ALSA: Convert dev_printk(KERN_<LEVEL> to dev_<level>(
dev_<level> calls take less code than dev_printk(KERN_<LEVEL>
and reducing object size is good.
Coalesce multiline formats for easier grep.
Coalesce segmented single line formats too.
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Clemens Ladisch [Sat, 27 Oct 2012 19:55:27 +0000 (21:55 +0200)]
ALSA: core: fix 64-bit SNDRV_PCM_IOCTL_STATUS ABI breakage
Commit 4eeaaeaea (ALSA: core: add hooks for audio timestamps) added the
new audio_tstamp field to struct snd_pcm_status. However, struct
timespec requires 64-bit alignment, so the 64-bit compiler would insert
32 bits of padding before this field, which broke SNDRV_PCM_IOCTL_STATUS
with error messages like this:
kernel: unknown ioctl = 0x80984120
To solve this, insert the padding explicitly so that it can be taken
into account when calculating the ABI structure size.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
David S. Miller [Sun, 28 Oct 2012 01:05:20 +0000 (18:05 -0700)]
sparc64: Fix cpu strand yielding.
For atomic backoff, we just loop over an exponentially backed off
counter. This is extremely ineffective as it doesn't actually yield
the cpu strand so that other competing strands can use the cpu core.
In cpus previous to SPARC-T4 we have to do this in a slightly hackish
way, by doing an operation with no side effects that also happens to
mark the strand as unavailable.
The mechanism we choose for this is three reads of the %ccr
(condition-code) register into %g0 (the zero register).
SPARC-T4 has an explicit "pause" instruction, and we'll make use of
that in a subsequent commit.
Yield strands also in cpu_relax(). We really should have done this a
very long time ago.
Signed-off-by: David S. Miller <davem@davemloft.net>
projects / karo-tx-linux.git / log