Commit Graph

13282 Commits

Author SHA1 Message Date
Guenter Roeck
29dd3b64b9 hwmon: (tmp401) Add support for TMP432
TMP432 is similar to TMP431 with a second external temperature sensor.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
2013-04-21 08:56:48 -07:00
Ingo Molnar
73e21ce28d Merge branch 'perf/urgent' into perf/core
Conflicts:
	arch/x86/kernel/cpu/perf_event_intel.c

Merge in the latest fixes before applying new patches, resolve the conflict.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-04-21 10:57:33 +02:00
Linus Torvalds
830ac8524f Merge branch 'x86-kdump-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull kdump fixes from Peter Anvin:
 "The kexec/kdump people have found several problems with the support
  for loading over 4 GiB that was introduced in this merge cycle.  This
  is partly due to a number of design problems inherent in the way the
  various pieces of kdump fit together (it is pretty horrifically manual
  in many places.)

  After a *lot* of iterations this is the patchset that was agreed upon,
  but of course it is now very late in the cycle.  However, because it
  changes both the syntax and semantics of the crashkernel option, it
  would be desirable to avoid a stable release with the broken
  interfaces."

I'm not happy with the timing, since originally the plan was to release
the final 3.9 tomorrow.  But apparently I'm doing an -rc8 instead...

* 'x86-kdump-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  kexec: use Crash kernel for Crash kernel low
  x86, kdump: Change crashkernel_high/low= to crashkernel=,high/low
  x86, kdump: Retore crashkernel= to allocate under 896M
  x86, kdump: Set crashkernel_low automatically
2013-04-20 18:40:36 -07:00
Linus Torvalds
db93f8b420 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Peter Anvin:
 "Three groups of fixes:

   1. Make sure we don't execute the early microcode patching if family
      < 6, since it would touch MSRs which don't exist on those
      families, causing crashes.

   2. The Xen partial emulation of HyperV can be dealt with more
      gracefully than just disabling the driver.

   3. More EFI variable space magic.  In particular, variables hidden
      from runtime code need to be taken into account too."

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, microcode: Verify the family before dispatching microcode patching
  x86, hyperv: Handle Xen emulation of Hyper-V more gracefully
  x86,efi: Implement efi_no_storage_paranoia parameter
  efi: Export efi_query_variable_store() for efivars.ko
  x86/Kconfig: Make EFI select UCS2_STRING
  efi: Distinguish between "remaining space" and actually used space
  efi: Pass boot services variable info to runtime code
  Move utf16 functions to kernel core and rename
  x86,efi: Check max_size only if it is non-zero.
  x86, efivars: firmware bug workarounds should be in platform code
2013-04-20 18:38:48 -07:00
H. Peter Anvin
c0a9f451e4 Merge remote-tracking branch 'efi/urgent' into x86/urgent
Matt Fleming (1):
      x86, efivars: firmware bug workarounds should be in platform
      code

Matthew Garrett (3):
      Move utf16 functions to kernel core and rename
      efi: Pass boot services variable info to runtime code
      efi: Distinguish between "remaining space" and actually used
      space

Richard Weinberger (2):
      x86,efi: Check max_size only if it is non-zero.
      x86,efi: Implement efi_no_storage_paranoia parameter

Sergey Vlasov (2):
      x86/Kconfig: Make EFI select UCS2_STRING
      efi: Export efi_query_variable_store() for efivars.ko

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2013-04-19 17:09:03 -07:00
Andrey Smirnov
b879a9c2a7 [media] v4l2: Add a V4L2 driver for SI476X MFD
This commit adds a driver that exposes all the radio related
functionality of the Si476x series of chips via the V4L2 subsystem.

[mchehab@redhat.com: change it to depends on MFD_SI476X_CORE instead of
 selecting it; vidioc_s_register now uses const struct]
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-18 21:20:34 -03:00
Yinghai Lu
adbc742bf7 x86, kdump: Change crashkernel_high/low= to crashkernel=,high/low
Per hpa, use crashkernel=X,high crashkernel=Y,low instead of
crashkernel_hign=X crashkernel_low=Y. As that could be extensible.

-v2: according to Vivek, change delimiter to ;
-v3: let hign and low only handle simple form and it conforms to
	description in kernel-parameters.txt
     still keep crashkernel=X override any crashkernel=X,high
        crashkernel=Y,low
-v4: update get_last_crashkernel returning and add more strict
     checking in parse_crashkernel_simple() found by HATAYAMA.
-v5: Change delimiter back to , according to HPA.
     also separate parse_suffix from parse_simper according to vivek.
	so we can avoid @pos in that path.
-v6: Tight the checking about crashkernel=X,highblahblah,high
     found by HTYAYAMA.

Cc: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Link: http://lkml.kernel.org/r/1366089828-19692-5-git-send-email-yinghai@kernel.org
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2013-04-17 12:35:33 -07:00
Yinghai Lu
55a20ee780 x86, kdump: Retore crashkernel= to allocate under 896M
Vivek found old kexec-tools does not work new kernel anymore.

So change back crashkernel= back to old behavoir, and add crashkernel_high=
to let user decide if buffer could be above 4G, and also new kexec-tools will
be needed.

-v2: let crashkernel=X override crashkernel_high=
    update description about _high will be ignored by crashkernel=X
-v3: update description about kernel-parameters.txt according to Vivek.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Link: http://lkml.kernel.org/r/1366089828-19692-4-git-send-email-yinghai@kernel.org
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2013-04-17 12:35:33 -07:00
Yinghai Lu
c729de8fce x86, kdump: Set crashkernel_low automatically
Chao said that kdump does does work well on his system on 3.8
without extra parameter, even iommu does not work with kdump.
And now have to append crashkernel_low=Y in first kernel to make
kdump work.

We have now modified crashkernel=X to allocate memory beyong 4G (if
available) and do not allocate low range for crashkernel if the user
does not specify that with crashkernel_low=Y.  This causes regression
if iommu is not enabled.  Without iommu, swiotlb needs to be setup in
first 4G and there is no low memory available to second kernel.

Set crashkernel_low automatically if the user does not specify that.

For system that does support IOMMU with kdump properly, user could
specify crashkernel_low=0 to save that 72M low ram.

-v3: add swiotlb_size() according to Konrad.
-v4: add comments what 8M is for according to hpa.
     also update more crashkernel_low= in kernel-parameters.txt
-v5: update changelog according to Vivek.
-v6: Change description about swiotlb referring according to HATAYAMA.

Reported-by: WANG Chao <chaowang@redhat.com>
Tested-by: WANG Chao <chaowang@redhat.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Link: http://lkml.kernel.org/r/1366089828-19692-2-git-send-email-yinghai@kernel.org
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2013-04-17 12:35:32 -07:00
Richard Weinberger
8c58bf3eec x86,efi: Implement efi_no_storage_paranoia parameter
Using this parameter one can disable the storage_size/2 check if
he is really sure that the UEFI does sane gc and fulfills the spec.

This parameter is useful if a devices uses more than 50% of the
storage by default.
The Intel DQSW67 desktop board is such a sucker for exmaple.

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2013-04-17 15:13:38 +01:00
Michael Holzheu
98ae9b020d s390/s390dbf.txt: Add doc: Debug views are removed in debug_unregister()
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-04-17 14:07:25 +02:00
Mauro Carvalho Chehab
82cd0b278f Revert "[media] v4l2: Add a V4L2 driver for SI476X MFD"
As requested by Andrey Smirnov <andrew.smirnov@gmail.com>, revert
this patch.

This reverts commit 30bac91104.

Conflicts:
	drivers/media/radio/Kconfig
	drivers/media/radio/radio-si476x.c

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-17 06:05:18 -03:00
Thomas Abraham
00ab5392cb spi/s3c64xx: let device core setup the default pin configuration
With device core now able to setup the default pin configuration,
the pin configuration code based on the deprecated Samsung specific
gpio bindings is removed.

Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
2013-04-16 11:52:34 +01:00
Ingo Molnar
b5210b2a34 Merge branch 'uprobes/core' of git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc into perf/core
Pull uprobes updates from Oleg Nesterov:

 - "uretprobes" - an optimization to uprobes, like kretprobes are an optimization
   to kprobes. "perf probe -x file sym%return" now works like kretprobes.

 - PowerPC fixes plus a couple of cleanups/optimizations in uprobes and trace_uprobes.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-04-16 11:04:10 +02:00
Lad, Prabhakar
54b7a05660 pinctrl: pinctrl-single: add missing double quote
add a missing double quote for compatible property for pmx_wkup.

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Rob Landley <rob@landley.net>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: devicetree-discuss@lists.ozlabs.org
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-04-15 22:34:55 +02:00
Greg Kroah-Hartman
11b397e6eb Merge 3.9-rc7 intp tty-next
We want the fixes here.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-14 19:13:28 -07:00
Greg Kroah-Hartman
2bb590b80b Merge 3.9-rc7 into staging-next
We want these fixes here.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-14 18:44:38 -07:00
Greg Kroah-Hartman
0d1d392f01 Merge 3.9-rc7 into driver-core-next
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-14 18:37:05 -07:00
Greg Kroah-Hartman
2f093e2aa4 Merge 3.9-rc7 into char-misc-next
We want the fixes in there.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-14 18:21:35 -07:00
Hans Verkuil
96b03d2a30 [media] v4l2: rename VIDIOC_DBG_G_CHIP_NAME to _CHIP_INFO
This ioctl will be extended to return more information than just the name.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-14 19:47:33 -03:00
Hans Verkuil
3eef25107c [media] v4l2: drop V4L2_CHIP_MATCH_SUBDEV_NAME
After using the new VIDIOC_DBG_G_CHIP_NAME ioctl I realized that the matching
by name possibility is useless. Just drop it and rename MATCH_SUBDEV_IDX to
just MATCH_SUBDEV.
The v4l2-dbg utility is much better placed to match by name by just enumerating
all bridge and subdev devices until chip_name.name matches.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-14 19:46:02 -03:00
Hans Verkuil
cd634f1bfc [media] v4l2: put VIDIOC_DBG_G_CHIP_NAME under ADV_DEBUG
Only enable this ioctl if the VIDEO_ADV_DEBUG config option is set. This
prevents abuse from both userspace and kernelspace (some bridge drivers
abuse DBG_G_CHIP_IDENT, lets prevent that from happening again with this
ioctl).

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-14 19:45:23 -03:00
Anton Arapov
decc6bfb49 uretprobes: Documentation update
add the uretprobe syntax and update an example

Signed-off-by: Anton Arapov <anton@redhat.com>
Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
2013-04-13 15:31:59 +02:00
Masanari Iida
1754e4c5c7 documentation: hwmon: Fix typo in documentation/hwmon
Correct spelling typo in Documentation/hwmon

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-12 18:24:09 -07:00
Linus Torvalds
90f340e22c Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
 "This is a set of ten bug fixes (and two consisting of copyright year
  update and version number change) pretty much all of which involve
  either a crash or a hang except the removal of the random sleep from
  the qla2xxx driver (which is a coding error so bad, we want it gone
  before anyone has a chance to copy it)."

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  [SCSI] lpfc: fix potential NULL pointer dereference in lpfc_sli4_rq_put()
  [SCSI] libsas: fix handling vacant phy in sas_set_ex_phy()
  [SCSI] ibmvscsi: Fix slave_configure deadlock
  [SCSI] qla2xxx: Update the driver version to 8.04.00.13-k.
  [SCSI] qla2xxx: Remove debug code that msleeps for random duration.
  [SCSI] qla2xxx: Update copyright dates information in LICENSE.qla2xxx file.
  [SCSI] qla2xxx: Fix crash during firmware dump procedure.
  [SCSI] Revert "qla2xxx: Add setting of driver version string for vendor application."
  [SCSI] ipr: dlpar failed when adding an adapter back
  [SCSI] ipr: fix addition of abort command to HRRQ free queue
  [SCSI] st: Take additional queue ref in st_probe
  [SCSI] libsas: use right function to alloc smp response
  [SCSI] ipr: ipr_test_msi() fails when running with msi-x enabled adapter
2013-04-12 15:18:56 -07:00
Sebastian Hesselbarth
9abd5f0555 clk: add si5351 i2c common clock driver
This patch adds a common clock driver for Silicon Labs Si5351a/b/c
i2c programmable clock generators. Currently, the driver does not
support VXCO feature of si5351b. Passing platform_data or DT bindings
selectively allows to overwrite stored Si5351 configuration which is
very helpful for clock generators with empty eeprom configuration.
Corresponding device tree binding documentation is also added.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Daniel Mack <zonque@gmail.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Michal Bachraty <michal.bachraty@streamunlimited.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-04-12 11:04:38 -07:00
Gregory CLEMENT
79b16641ef clk: add device tree fixed-factor-clock binding support
Add support for DT "fixed-factor-clock" binding to the common fixed
factor clock support.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Tested-by: Christian Ruppert <christian.ruppert@abilis.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-04-12 10:52:23 -07:00
Tejun Heo
26d5bbe5ba Revert "cgroup: remove bind() method from cgroup_subsys."
This reverts commit 84cfb6ab48.  There
are scheduled changes which make use of the removed callback.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Rami Rosen <ramirose@gmail.com>
Cc: Li Zefan <lizefan@huawei.com>
2013-04-12 10:29:04 -07:00
Dave Hansen
147ea09119 x86, early-printk: Update earlyprintk documentation (and kill x86 copy)
Documentation/kernel-parameters.txt and
Documentation/x86/x86_64/boot-options.txt contain virtually
identical text describing earlyprintk.

This consolidates the two copies and updates the documentation a
bit.  No one ever documented the:

	earlyprintk=serial,0x1008,115200

syntax, nor mentioned that ARM is now a supported earlyprintk
arch.

Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Rob Landley <rob@landley.net>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dave Hansen <dave@sr71.net>
Link: http://lkml.kernel.org/r/20130410210338.E2930E98@viggo.jf.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-04-11 10:30:40 +02:00
Linus Torvalds
7a92bc3856 Merge tag 'tty-3.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg Kroah-Hartman:
 "Here are 4 small tty/serial fixes for 3.9.

  One fixes a bug where we broke the documentation build, and the others
  fix reported problems in some serial drivers.

  All have been in linux-next for a while"

* tag 'tty-3.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty: mxser: fix cycle termination condition in mxser_probe() and mxser_module_init()
  Revert "tty/8250_pnp: serial port detection regression since v3.7"
  OMAP/serial: Revert bad fix of Rx FIFO threshold granularity
  tty: Documentation: fix a path in a DocBook template
2013-04-10 15:59:12 -07:00
Rami Rosen
84cfb6ab48 cgroup: remove bind() method from cgroup_subsys.
The bind() method of cgroup_subsys is not used in any of the
controllers (cpuset, freezer, blkio, net_cls, memcg, net_prio,
devices, perf, hugetlb, cpu and cpuacct)

tj: Removed the entry on ->bind() from
    Documentation/cgroups/cgroups.txt.  Also updated a couple
    paragraphs which were suggesting that dynamic re-binding may be
    implemented.  It's not gonna.

Signed-off-by: Rami Rosen <ramirose@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2013-04-10 10:46:59 -07:00
Ingo Molnar
8fcfae3171 Merge branch 'rcu/next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU updates from Paul E. McKenney:

  * Remove restrictions on no-CBs CPUs, make RCU_FAST_NO_HZ
    take advantage of numbered callbacks, do additional callback
    accelerations based on numbered callbacks.  Posted to LKML
    at https://lkml.org/lkml/2013/3/18/960.

  * RCU documentation updates.  Posted to LKML at
    https://lkml.org/lkml/2013/3/18/570.

  * Miscellaneous fixes.  Posted to LKML at
    https://lkml.org/lkml/2013/3/18/594.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-04-10 12:55:49 +02:00
Tomasz Figa
61dd726131 pinctrl: Add pinctrl-s3c64xx driver
This patch adds pinctrl-s3c64xx driver which implements pin control
interface for Samsung S3C64xx SoCs.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-04-09 09:45:10 +02:00
Samuel Ortiz
e46980a10a mei: bus: Add device enabling and disabling API
It should be left to the drivers to enable and disable the device on the
MEI bus when e.g getting probed.
For drivers to be able to safely call the enable and disable hooks, the
mei_cl_ops must be set before it's probed and thus this should happen
before registering the device on the MEI bus. Hence the mei_cl_add_device()
prototype change.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-08 16:57:15 -07:00
Greg Kroah-Hartman
31e918908c Merge 3.9-rc6 into usb-next
We want the fixes here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-08 08:36:40 -07:00
Guenter Roeck
2c7fd30da2 hwmon: (nct6775) Expand scope of supported chips
NCT6775, NCT6776, and NCT6779 have a number of variants with the same
chip ID but different chip labels. Add text "or compatible" to the
message displayed when the driver is loaded and rephrase the Kconfig
entry to reflect that it also supports compatible chips.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:42 -07:00
Guenter Roeck
e1eb49063b hwmon: Add driver for LM95234
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:42 -07:00
Guenter Roeck
a1fac92b8b hwmon: (tmp401) Add support for TMP431
TMP431 is compatible to TMP401.

Also add support for additional I2C addresses supported by TMP411B
and TMP411C.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
2013-04-07 21:16:42 -07:00
Guenter Roeck
58615a94f6 hwmon: (pmbus/lm25066) Add support for LM25056
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:41 -07:00
Guenter Roeck
a7c69118bd hwmon: (pmbus/lm25066) Report VAUX as vmon
So far the driver reported the voltage on VAUX as "vout2". This was not
entirely appropriate as it is not an output voltage, and complicates
the code. Use the new virtual "VMON" register set and report the voltage
as "vmon" instead.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:41 -07:00
Guenter Roeck
fd9175d2f6 hwmon: (pmbus/ltc2978) Add support for LTC2974 and LTC3883
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:41 -07:00
Guenter Roeck
8c770f3a47 hwmon: (pmbus/ltc2978) Clean up documentation
Some sysfs attributes are only supported on LTC2978 and not on LTC3880.
Update documentation to reflect which attributes are supported for which chips.

Output current attributes supported on LTC3880 were described as providing
input current values. Fix text to reflect that the attributes provide output
current values.

"reset history" attribute descriptions were misleading and seemed to imply
that all history was reset when writing a single attribute. Replace with more
accurate text.

Replace 'internal temperature" with "chip temperature". Temperature limits
not only apply to the chip temperature, but also to external temperatures
on LTC3880, so remove the word "chip" from the attribute description.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:41 -07:00
Guenter Roeck
bbd8decd41 hwmon: (nct6775) Add support for weighted fan control
The NCT677X series support weighted fan control. In this mode, a secondary
temperature source is used in addition to the primary temperature source to
control fan speed. Add support for this feature.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:39 -07:00
Guenter Roeck
cdcaeceb74 hwmon: (nct6775) Add support for automatic fan control
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:39 -07:00
Guenter Roeck
77eb5b3703 hwmon: (nct6775) Add support for pwm, pwm_mode, and pwm_enable
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:39 -07:00
Guenter Roeck
1c65dc365e hwmon: (nct6775) Add support for fan speed attributes
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:39 -07:00
Guenter Roeck
9de2e2e84e hwmon: Driver for Nuvoton NCT6775F, NCT6776F, and NCT6779D
This driver will replace the w83627ehf driver for NCT6775F and NCT6776F,
and provides support for NCT6779D.

This patch provides support for voltage monitor attributes.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:38 -07:00
Naveen Krishna Chatradhi
9e8269de10 hwmon: (ntc_thermistor) Add DT with IIO support to NTC thermistor driver
This patch adds DT support to NTC driver to parse the
platform data.

Also adds the support to work as an iio device client.

During the probe ntc driver gets the respective channels of ADC
and uses iio_raw_read calls to get the ADC converted value.

Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
[Guenter Roeck: fixed Kconfig dependencies; use ERR_CAST]
Tested-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:38 -07:00
Lars-Peter Clausen
51c2a4871c hwmon: (adt7410) Add support for the adt7310/adt7320
The adt7310/adt7320 is the SPI version of the adt7410/adt7420. The register map
layout is a bit different, i.e. the register addresses differ between the two
variants, but the bit layouts of the individual registers are identical. So both
chip variants can easily be supported by the same driver. The issue of non
matching register address layouts is solved by a simple look-up table which
translates the I2C addresses to the SPI addresses.

The patch moves the bulk of the adt7410 driver to a common module that will be
shared by the adt7410 and adt7310 drivers. This common module implements the
driver logic and uses a set of virtual functions to perform IO access. The
adt7410 and adt7310 driver modules provide proper implementations of these IO
accessor functions for I2C respective SPI.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:38 -07:00
Laxman Dewangan
f333a331ad spi/tegra114: add spi driver
Add SPI driver for NVIDIA's Tegra114 SPI controller. This controller
is different than the older SoCs SPI controller in internal design as
well as register interface.

This driver supports the:
- non DMA based transfer for smaller transfer i.e. less than FIFO depth.
- APB DMA based transfer for larger transfer i.e. more than FIFO depth.
- Clock gating through runtime PM callbacks.
- registration through DT only.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2013-04-07 10:08:00 +01:00