Commit graph

1400 commits

Author SHA1 Message Date
Guenter Roeck
b1e698db09 hwmon: (s3c) Initialize sysfs attributes
Initialize dynamically allocated sysfs attributes before device_create_file()
call to suppress lockdep_init_map() warning if lockdep debugging is enabled.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org # 2.6.34+
2011-06-17 23:22:27 -07:00
Guenter Roeck
fb794e0f71 hwmon: (ibmpex) Initialize sysfs attributes
Initialize dynamically allocated sysfs attributes before device_create_file()
call to suppress lockdep_init_map() warning if lockdep debugging is enabled.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org # 2.6.34+
2011-06-17 23:22:27 -07:00
Guenter Roeck
3cdb2052a6 hwmon: (ibmaem) Initialize sysfs attributes
Initialize dynamically allocated sysfs attributes before device_create_file()
call to suppress lockdep_init_map() warning if lockdep debugging is enabled.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org # 2.6.34+
2011-06-17 23:22:26 -07:00
Guenter Roeck
9a2d55be11 hwmon: (asus_atk0110) Consolidate sysfs attribute initialization
Call sysfs_attr_init() from atk_init_attribute() to handle sysfs attribute
initialization in a single function.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Luca Tettamanti <kronos.it@gmail.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
2011-06-17 23:22:26 -07:00
Jean Delvare
808b4e639e hwmon: (coretemp) Drop unused struct members
pdev_entry.cpu and pdev_entry.cpu_core_id aren't used anywhere in the
driver code so we can drop these struct members.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Durgadoss R <durgadoss.r@intel.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-06-17 23:22:26 -07:00
Per Dalén
942c1a927b hwmon: (max6642): Better chip detection schema
Improve detection of MAX6642 by reading non existing registers (0x04, 0x06
and 0xff). Reading those registers returns the previously read value.

Signed-off-by: Per Dalen <per.dalen@appeartv.com>
[guenter.roeck@ericsson.com: added second set of register reads]
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-06-04 10:34:28 -07:00
Guenter Roeck
bb9973e4e7 hwmon: (coretemp) Further relax temperature range checks
Further relax temperature range checks after reading the IA32_TEMPERATURE_TARGET
register. If the register returns a value other than 0 in bits 16..32, assume
that the returned value is correct.

This change applies to both packet and core temperature limits.

Cc: Carsten Emde <C.Emde@osadl.org>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Fenghua Yu <fenghua.yu@intel.com>
2011-06-01 20:10:40 -07:00
Guenter Roeck
4f5f71a7ab hwmon: (coretemp) Fix TjMax detection for older CPUs
Commit a321cedb12 excludes CPU models 0xe, 0xf,
0x16, and 0x1a from TjMax temperature adjustment, even though several of those
CPUs are known to have TiMax other than 100 degrees C, and even though the code
in adjust_tjmax() explicitly handles those CPUs and points to a Web document
listing several of the affected CPU IDs.

Reinstate original TjMax adjustment if TjMax can not be determined using the
IA32_TEMPERATURE_TARGET register.

https://bugzilla.kernel.org/show_bug.cgi?id=32582

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Huaxu Wan <huaxu.wan@linux.intel.com>
Cc: Carsten Emde <C.Emde@osadl.org>
Cc: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Yong Wang <yong.y.wang@linux.intel.com>
Cc: Rudolf Marek <r.marek@assembler.cz>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Tested-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Fenghua Yu <fenghua.yu@intel.com>
Cc: <stable@kernel.org> # .35.x .36.x .37.x .38.x .39.x
2011-06-01 20:10:31 -07:00
Jean Delvare
4c6e0f8101 hwmon: (coretemp) Relax target temperature range check
The current temperature range check of MSR_IA32_TEMPERATURE_TARGET
seems too strict to me, some TjMax values documented in
Documentation/hwmon/coretemp wouldn't pass. Relax the check so that
all the documented values pass.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Carsten Emde <C.Emde@osadl.org>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-06-01 11:11:28 -07:00
Per Dalen
614198bbf8 hwmon: (max6642) Rename temp_fault sysfs attribute to temp2_fault
The temp_fault sysfs attribute is wrong, it should be temp2_fault instead.

Reported-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Per Dalen <per.dalen@appeartv.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-06-01 11:11:27 -07:00
Jean Delvare
582e1b270f hwmon: (coretemp) Fix section mismatch
chk_ucode_version() is only called from coretemp_probe() which is
__devinit, so it can be marked __devinit too.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Durgadoss R <durgadoss.r@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-05-27 02:24:54 -07:00
Guenter Roeck
eec752b2b9 hwmon: (pmbus) Initialize sysfs attributes
Initialize sysfs attrs before device_create_file() call to suppress
lockdep_init_map() warning:

WARNING: at kernel/lockdep.c:2701 lockdep_init_map+0x12d/0x140()

Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: stable@kernel.org # .39.x
2011-05-27 02:24:54 -07:00
Guenter Roeck
6777b9e47e hwmon: (coretemp) Update comments describing the handling of HT CPUs
Update comments describing the handling of HT CPUs based on review feedback.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Durgadoss R <durgadoss.r@intel.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
2011-05-27 02:24:53 -07:00
Sergey Senozhatsky
4258781ac7 hwmon: (coretemp) Initialize sysfs attributes
Initialize sysfs attrs before device_create_file() call to suppress lockdep_init_map()
warning:

[    3.653628] WARNING: at kernel/lockdep.c:2885 lockdep_init_map+0xea/0x43c()
[    3.653698] Modules linked in:
[    3.654835] Pid: 1, comm: swapper Not tainted 2.6.39-dbg-git8-05624-g46187f8 #576
[    3.656014] Call Trace:
[    3.657139]  [<ffffffff8103e4b4>] warn_slowpath_common+0x7e/0x96
[    3.658298]  [<ffffffff8103e4e1>] warn_slowpath_null+0x15/0x17
[    3.659460]  [<ffffffff8106d7b9>] lockdep_init_map+0xea/0x43c
[    3.660616]  [<ffffffff81163c1a>] sysfs_add_file_mode+0x5d/0xa8
[    3.661785]  [<ffffffff81163c71>] sysfs_add_file+0xc/0xe
[    3.662929]  [<ffffffff81163d26>] sysfs_create_file+0x23/0x25
[    3.664045]  [<ffffffff813724d1>] device_create_file+0x14/0x16
[    3.665172]  [<ffffffff81460ed4>] coretemp_probe+0xf9/0x185
[    3.666306]  [<ffffffff8137638e>] platform_drv_probe+0x12/0x14
[    3.667420]  [<ffffffff81375321>] driver_probe_device+0xb0/0x14b
[    3.668542]  [<ffffffff8137546d>] __device_attach+0x35/0x3a
[    3.669710]  [<ffffffff81375438>] ? __driver_attach+0x7c/0x7c
[    3.670816]  [<ffffffff8137426b>] bus_for_each_drv+0x54/0x88
[    3.671921]  [<ffffffff81375231>] device_attach+0x77/0x9b
[    3.673027]  [<ffffffff81374aef>] bus_probe_device+0x22/0x39
[    3.674137]  [<ffffffff81373235>] device_add+0x3c1/0x550
[    3.675249]  [<ffffffff81371ed9>] ? dev_set_name+0x3c/0x3e
[    3.676371]  [<ffffffff813769f3>] platform_device_add+0x10c/0x156
[    3.677491]  [<ffffffff8146af9c>] get_core_online+0xab/0x16e
[    3.678608]  [<ffffffff81ad8070>] coretemp_init+0x4b/0x80
[    3.679724]  [<ffffffff81ad8025>] ? hwmon_init+0xee/0xee
[    3.680853]  [<ffffffff8100020a>] do_one_initcall+0x7a/0x13c
[    3.681975]  [<ffffffff81aaac74>] kernel_init+0xe1/0x15b
[    3.683081]  [<ffffffff8147e4e4>] kernel_thread_helper+0x4/0x10
[    3.684174]  [<ffffffff8102d48c>] ? finish_task_switch+0x76/0xf0
[    3.685266]  [<ffffffff81477918>] ? retint_restore_args+0x13/0x13
[    3.686356]  [<ffffffff81aaab93>] ? start_kernel+0x3ee/0x3ee
[    3.687425]  [<ffffffff8147e4e0>] ? gs_change+0x13/0x13
[    3.688489] ---[ end trace 7392ad3e6a92ae39 ]---

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-05-27 02:24:53 -07:00
Jean Delvare
b0b349a85d hwmon: New driver for the SMSC EMC6W201
This is a new driver for the SMSC EMC6W201 hardware monitoring device.
The device is functionally close to the EMC6D100 series, but is
register-incompatible.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Harry G McGavran Jr <w5pny@arrl.net>
Tested-by: Jeff Rickman <jrickman@myamigos.us>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-05-25 20:43:33 +02:00
Jean Delvare
ec693fe528 hwmon: (abituguru) Depend on DMI
The abituguru drivers are only built on X86, where DMI support is now
enabled by default. So let these drivers depend on DMI, for the
following gains:
* Robustness and safety. Detection of these devices is weak and uses
  non-standard methods, it should really be limited to Abit boards
  unless the user explicitly asks otherwise.
* Code simplicity. The code is easier to read without ifdefs.
* Better build testing coverage. Now there's only one way to build the
  drivers, so no risk of build failure on exotic systems.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Alistair John Strachan <alistair@devzero.co.uk>
Acked-by: Hans de Goede <hdegoede@redhat.com>
2011-05-25 20:43:33 +02:00
Nat Gurumoorthy
5b0380c94a hwmon: (it87) Use request_muxed_region
Serialize access to the hardware by using "request_muxed_region" macro
defined by Alan Cox. Call to this macro will hold off the requestor if
the resource is currently busy. "superio_enter" will return an error
if call to "request_muxed_region" fails. Rest of the code change is to
ripple an error return from superio_enter to the top level.

Signed-off-by: Nat Gurumoorthy <natg@google.com>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-05-25 20:43:33 +02:00
Hans de Goede
357b9dc6c2 hwmon: (sch5627) Trigger Vbat measurements
The sch5627 needs to be explicitly told to start an adc conversion
for Vbat, once in a while. Without this Vbat may read 0, and will never
get updated.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-05-25 20:43:33 +02:00
Hans de Goede
709046a622 hwmon: (sch5627) Add sch5627_send_cmd function
This patch generalizes sch5627_read_virtual_reg so that it can
be used to write virtual regs too.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Sigend-off-by: Jean Delvare <khali@linux-fr.org>
2011-05-25 20:43:33 +02:00
Jean Delvare
9c084dae5d hwmon: (max6650) Properly support the MAX6650
The MAX6650 has only one fan input.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: "Hans J. Koch" <hjk@hansjkoch.de>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-05-25 20:43:32 +02:00
Jean Delvare
67b670ff04 hwmon: (max6650) Drop device detection
MAX6650 device detection is unreliable, we got reports of false
positives. We now have many ways to let users instantiate the devices
explicitly, so unreliable detection should be dropped.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: "Hans J. Koch" <hjk@hansjkoch.de>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-05-25 20:43:32 +02:00
Jean Delvare
7d03336538 Move ACPI power meter driver to hwmon
As discussed earlier, the ACPI power meter driver would better live
in drivers/hwmon, as its only purpose is to create hwmon-style
interfaces for ACPI 4.0 power meter devices. Users are more likely to
look for it there, and less likely to accidentally hide it by
unselecting its dependencies.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: "Darrick J. Wong" <djwong@us.ibm.com>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Len Brown <lenb@kernel.org>
2011-05-25 20:43:32 +02:00
Hans de Goede
629c58bac0 hwmon: (f71882fg) Add support for F71808A
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-05-25 20:43:32 +02:00
Hans de Goede
4d53811a28 hwmon: (f71882fg) Split has_beep in fan_has_beep and temp_has_beep
Needed for upcoming support of the F71808A.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-05-25 20:43:32 +02:00
Jean Delvare
9854f971f2 hwmon: (asc7621) Drop duplicate dependency
The config SENSORS_ASC7621 entry is inside an if HWMON / endif block,
so it already depends on HWMON.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-05-25 20:43:32 +02:00
Jean Delvare
774466add7 hwmon: (jc42) Change detection class
While the JC42-compatible chips are temperature sensors, I2C_CLASS_SPD
makes more sense because these chips always live on memory modules.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Guenter Roeck <guenter.roeck@ericsson.com>
2011-05-25 20:43:32 +02:00
Andreas Herrmann
512d1027a6 hwmon: Add driver for AMD family 15h processor power information
This CPU family provides NB register values to gather following
TDP information

* ProcessorPwrWatts: Specifies in Watts the maximum amount of power
  the processor can support.
* CurrPwrWatts: Specifies in Watts the current amount of power being
  consumed by the processor.

This driver provides

* power1_crit (ProcessorPwrWatts)
* power1_input (CurrPwrWatts)

Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-05-25 20:43:31 +02:00
Andre Przywara
9e58131112 hwmon: (k10temp) Add support for Fam15h (Bulldozer)
AMDs upcoming CPUs use the same mechanism for the internal
temperature reporting as the Fam10h CPUs, so we just needed to add
the appropriate PCI-ID to the list.
This allows to use the k10temp driver on those CPUs.
While at it change the Kconfig entry to be more generic.

Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2011-05-25 20:43:31 +02:00
Jean Delvare
95de3b2575 hwmon: Use helper functions to set and get driver data
Use helper functions to set and get driver data. This is more elegant.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Andreas Herrmann <andreas.herrmann3@amd.com>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-05-25 20:43:31 +02:00
Guenter Roeck
f4e0bcf06b hwmon: (coretemp) Add comments describing the handling of HT CPUs
The coretemp driver provides a single set of device attributes for each
physical core of a HT CPU to avoid duplicate sensors.  This
functionality was introduced with commit d883b9f097 ("hwmon:
(coretemp) Skip duplicate CPU entries").

Commit e40cc4bdfd ("x86/hwmon: register alternate sibling upon CPU
removal") extends this functionality to register the HT sibling of a CPU
which is taken offline, to ensure that sensor attributes are provided if
at least one HT sibling of a core is online.

Add comments into the code describing the functionality in some more
detail.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Durgadoss R <durgadoss.r@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-23 21:11:14 -07:00
Guenter Roeck
bb74e8ca35 hwmon: (coretemp) Fix compile error if CONFIG_SMP is not defined
cpu_sibling_mask() is not defined unless CONFIG_SMP is defined, so it
must not be used directly in the code without ifdef protection.

To solve the problem and avoid ifdefs in the code, define
for_each_sibling() and use it instead.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Durgadoss R <durgadoss.r@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-23 11:59:08 -07:00
Guenter Roeck
4cc452758f hwmon: (coretemp) Fix checkpatch errors
Fix remaining checkpatch errors in the coretemp driver.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Durgadoss R <durgadoss.r@intel.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
2011-05-21 07:29:17 -07:00
Guenter Roeck
5e99c2f1e0 hwmon: Remove pkgtemp driver
After the merge of pkgtemp functionality into the coretemp driver,
the pkgtemp driver is no longer necessary. Remove it.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
2011-05-21 07:22:10 -07:00
Durgadoss R
199e0de7f5 hwmon: (coretemp) Merge pkgtemp with coretemp
This patch merges the pkgtemp with coretemp driver.
The sysfs interfaces for all cores in the same pkg
are shown under one directory, in hwmon. It also
supports CONFIG_HOTPLUG_CPU. So, the sysfs interfaces
are created when each core comes online and are
removed when it goes offline.

Signed-off-by: Durgadoss R <durgadoss.r@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
[guenter.roeck@ericsson.com: Fixed section reference errors]
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-05-20 07:04:49 -07:00
Guenter Roeck
83f7649c52 hwmon: (pmbus) Add support for Analog Devices ADM1275
Add support for Analog Devices ADM1275 Hot-Swap Controller and Digital Power
Monitor

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Tom Grennan <tom.grennan@ericsson.com>
2011-05-19 08:19:41 -07:00
Guenter Roeck
0c0a061516 hwmon: (pmbus) Support for TI UCD90xxx series Sequencer and System Health Controllers
Hardware monitoring support for TI UCD90120, UCD90124, UCD9090, and UCD90910
Sequencer and System Health Controllers.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Tom Grennan <tom.grennan@ericsson.com>
2011-05-19 08:19:40 -07:00
Guenter Roeck
84fc4585c1 hwmon: (pmbus) Add support for TI UCD9200 series of PWM System Controllers
This patch adds hardware monitoring support for TI UCD9220, UCD9222, UCD9224,
UCD9240, UCD9244, UCD9246, and UCD9248 Digital PWM System Controllers.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Tom Grennan <tom.grennan@ericsson.com>
2011-05-19 08:19:39 -07:00
Guenter Roeck
6586b14c7b hwmon: (pmbus) Use device specific function to read fan configuration
Fan control implementation tends to be device specific, so start using
the device specific function call to read fan configuration registers.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Tom Grennan <tom.grennan@ericsson.com>
2011-05-19 08:19:39 -07:00
Guenter Roeck
2cfa6aedb3 hwmon: (pmbus) Expand scope of device specific get_status function
Some devices use non-standard registers to access various functionality.
This does not only affect status registers, but other registers as well.
Rename local get_status function to get_byte_data to reflect this requirement.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Tom Grennan <tom.grennan@ericsson.com>
2011-05-19 08:19:38 -07:00
Guenter Roeck
b4ce237b7f hwmon: (pmbus) Introduce infrastructure to detect sensors and limit registers
This commit replaces hard-coded sensor and limit register detection code
with table based sensor detection. This change eliminates code block repetition
and reduces code size.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Tom Grennan <tom.grennan@ericsson.com>
2011-05-19 08:19:37 -07:00
Guenter Roeck
f5bae2642e hwmon: Driver for MAX16065 System Manager and compatibles
This patch adds hardware monitoring support for Maxim MAX16065, MAX16066,
MAX16067, MAX16068, MAX16070, and MAX16071 flash-configurable system managers
with nonvolatile fault registers.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
2011-05-19 08:19:36 -07:00
Jerome Oufella
82c7465b4d hwmon: (sht15) add support for CRC validation
The sht15 sensor allows validating exchanges to and from the device
using a crc8 function. An utility function to reverse a byte has also
been added.

Signed-off-by: Jerome Oufella <jerome.oufella@savoirfairelinux.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-05-19 08:19:36 -07:00
Vivien Didelot
cc15c7ebb4 hwmon: (sht15) add support for the status register
* Add support for:
  - Heater.
  - End of battery notice.
  - Ability not to reload from OTP.
  - Low resolution (12bit temp, 8bit humidity).
* Add an utility function to read individual bytes from the device.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-05-19 08:19:35 -07:00
Vivien Didelot
181148ae68 hwmon: (sht15) clean-up the probe function
* Move the creation of sysfs attributes after the end of the
  initialization, and remove them in the error path.
* Release regulator in the error path.
* Add a soft reset command (need to wait 11ms before next command).

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-05-19 08:19:34 -07:00
Vivien Didelot
99a0378de9 hwmon: (sht15) general code clean-up
* Add a documentation file for the device.
* Respect a bit more the kernel-doc syntax.
* Rename some variables for clarity.
* Use bool type for flags.
* Use an enum for states (actions being done).

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-05-19 08:19:33 -07:00
Per Dalén
83bffbce74 hwmon: Add support for MAX6642
MAX6642 is a SMBus-Compatible Remote/Local Temperature Sensor with
Overtemperature Alarm from Maxim.

Signed-off-by: Per Dalen <per.dalen@appeartv.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-05-19 08:19:32 -07:00
Axel Lin
c30aa39c23 hwmon: (twl4030-madc-hwmon) Return proper error if hwmon_device_register fails
The driver did not return an error if the call to hwmon_device_register failed.
Fix by returning the error reported from hwmon_device_register.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-05-01 09:06:35 -07:00
Jean Delvare
bc4d45f190 hwmon: (lm85) Fix error paths in probe function
We must remove all files we created, even in error cases.

Fixes second part of kernel bug #34072:
https://bugzilla.kernel.org/show_bug.cgi?id=34072

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-04-29 16:33:36 +02:00
Jean Delvare
5f441e2256 hwmon: (lm85) Add missing list terminators
Fixes kernel bug #34072:
https://bugzilla.kernel.org/show_bug.cgi?id=34072

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-04-29 16:33:36 +02:00
Jean Delvare
d7ce0335b5 hwmon: (adm1021) Clarify documentation regarding Xeon processors
Recent Xeon processor thermal sensors are supported by the coretemp
driver and not the adm1021 driver. Only one old generation of Xeon
processors (the first Netburst ones) are supported by the adm1021
driver.

Reported-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-04-29 16:33:36 +02:00