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path: root/drivers/hwmon
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2014-10-08hwmon: ntc_thermistor: Add ntc thermistor to thermal subsystem as a sensor.Jonghwa Lee2-0/+26
To get more comprehensive and integrated thermal management, it adds ntc thermistor to thermal framework as a thermal sensor. It's governed thermal susbsystem only if it is described in DT node. Otherwise, it just notifies temperature to userspace via sysfs as it used to be. Change-Id: Ie5b8948ca0cb567854905e0e9ea903ff7cdc1f4c Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
2014-08-08hwmon: pwm-fan: fix build errorJoonyoung Shim1-1/+1
This fixes below build error. CC drivers/hwmon/pwm-fan.o drivers/hwmon/pwm-fan.c: In function ‘pwm_fan_remove’: drivers/hwmon/pwm-fan.c:155:20: error: ‘struct pwm_fan_ctx’ has no member named ‘mutex’ mutex_destroy(&ctx->mutex); ^ make[2]: *** [drivers/hwmon/pwm-fan.o] Error 1 Change-Id: I442ba2698869d1573662c237e67e53c2e3d6a276 Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
2014-08-08hwmon: pwm-fan: Add pwm-fan driverKamil Debski3-0/+213
The pwm-fan driver enables control of fans connected to PWM lines. This driver uses the PWM framework, so it is compatible with all PWM devices that provide drivers through the PWM framework. Change-Id: I1e364f8af7c5855adda78e7db34a073b419f8c89 Signed-off-by: Kamil Debski <k.debski@samsung.com>
2014-08-08upstream: drivers: avoid parsing names as kthread_run() format stringsKees Cook1-1/+1
Calling kthread_run with a single name parameter causes it to be handled as a format string. Many callers are passing potentially dynamic string content, so use "%s" in those cases to avoid any potential accidents. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-07-31hwmon: (smsc47m192) Fix temperature limit and vrm write operationsGuenter Roeck1-1/+3
commit 043572d5444116b9d9ad8ae763cf069e7accbc30 upstream. Temperature limit clamps are applied after converting the temperature from milli-degrees C to degrees C, so either the clamp limit needs to be specified in degrees C, not milli-degrees C, or clamping must happen before converting to degrees C. Use the latter method to avoid overflows. vrm is an u8, so the written value needs to be limited to [0, 255]. Cc: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-28hwmon: (adt7470) Fix writes to temperature limit registersGuenter Roeck1-3/+3
commit de12d6f4b10b21854441f5242dcb29ea96181e58 upstream. Temperature limit registers are signed. Limits therefore need to be clamped to (-128, 127) degrees C and not to (0, 255) degrees C. Without this fix, writing a limit of 128 degrees C sets the actual limit to -128 degrees C. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-28hwmon: (da9052) Don't use dash in the name attributeAxel Lin1-1/+1
commit ee14b644daaa58afe1e91bb9ebd9cf1b18d1f5fa upstream. Dashes are not allowed in hwmon name attributes. Use "da9052" instead of "da9052-hwmon". Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-28hwmon: (da9055) Don't use dash in the name attributeAxel Lin1-1/+1
commit 6b00f440dd678d786389a7100a2e03fe44478431 upstream. Dashes are not allowed in hwmon name attributes. Use "da9055" instead of "da9055-hwmon". Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-17hwmon: (adm1021) Fix cache problem when writing temperature limitsAxel Lin1-6/+8
commit c024044d4da2c9c3b32933b4235df1e409293b84 upstream. The module test script for the adm1021 driver exposes a cache problem when writing temperature limits. temp_min and temp_max are expected to be stored in milli-degrees C but are stored in degrees C. Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-17hwmon: (adm1029) Ensure the fan_div cache is updated in set_fan_divAxel Lin1-0/+3
commit 1035a9e3e9c76b64a860a774f5b867d28d34acc2 upstream. Writing to fanX_div does not clear the cache. As a result, reading from fanX_div may return the old value for up to two seconds after writing a new value. This patch ensures the fan_div cache is updated in set_fan_div(). Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-17hwmon: (adm1031) Fix writes to limit registersGuenter Roeck1-3/+5
commit 145e74a4e5022225adb84f4e5d4fff7938475c35 upstream. Upper limit for write operations to temperature limit registers was clamped to a fractional value. However, limit registers do not support fractional values. As a result, upper limits of 127.5 degrees C or higher resulted in a rounded limit of 128 degrees C. Since limit registers are signed, this was stored as -128 degrees C. Clamp limits to (-55, +127) degrees C to solve the problem. Value on writes to auto_temp[12]_min and auto_temp[12]_max were not clamped at all, but masked. As a result, out-of-range writes resulted in a more or less arbitrary limit. Clamp those attributes to (0, 127) degrees C for more predictable results. Cc: Axel Lin <axel.lin@ingics.com> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-17hwmon: (amc6821) Fix permissions for temp2_inputAxel Lin1-1/+1
commit df86754b746e9a0ff6f863f690b1c01d408e3cdc upstream. temp2_input should not be writable, fix it. Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-09hwmon: (ina2xx) Cast to s16 on shunt and current regsFabio Baltieri1-3/+4
commit c0214f98943b1fe43f7be61b7782b0c8f0836f28 upstream. All devices supported by ina2xx are bidirectional and report the measured shunt voltage and power values as a signed 16 bit, but the current driver implementation caches all registers as u16, leading to an incorrect sign extension when reporting to userspace in ina2xx_get_value(). This patch fixes the problem by casting the signed registers to s16. Tested on an INA219. Signed-off-by: Fabio Baltieri <fabio.baltieri@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-11hwmon: (ntc_thermistor) Fix OF device ID mappingJean Delvare1-5/+6
commit ead82d6792ef5c600d535bca6ec50a4da14ff7c7 upstream. The mapping from OF device IDs to platform device IDs is wrong. TYPE_NCPXXWB473 is 0, TYPE_NCPXXWL333 is 1, so ntc_thermistor_id[TYPE_NCPXXWB473] is { "ncp15wb473", TYPE_NCPXXWB473 } while ntc_thermistor_id[TYPE_NCPXXWL333] is { "ncp18wb473", TYPE_NCPXXWB473 }. So the name is wrong for all but the "ntc,ncp15wb473" entry, and the type is wrong for the "ntc,ncp15wl333" entry. So map the entries by index, it is neither elegant nor robust but at least it is correct. Signed-off-by: Jean Delvare <jdelvare@suse.de> Fixes: 9e8269de hwmon: (ntc_thermistor) Add DT with IIO support to NTC thermistor driver Reviewed-by: Guenter Roeck <linux@roeck-us.net> Cc: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Cc: Doug Anderson <dianders@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-11hwmon: (ntc_thermistor) Fix dependenciesJean Delvare2-2/+4
commit 59cf4243e557aa64ab2ef51280454aa1f3828e14 upstream. In commit 9e8269de, support was added for ntc_thermistor devices being declared in the device tree and implemented on top of IIO. With that change, a dependency was added to the ntc_thermistor driver: depends on (!OF && !IIO) || (OF && IIO) This construct has the drawback that the driver can no longer be selected when OF is set and IIO isn't, nor when IIO is set and OF is not. This is a regression for the original users of the driver. As the new code depends on IIO and is useless without OF, include it only if both are enabled, and set the dependencies accordingly. This is clearer, more simple and more correct. Signed-off-by: Jean Delvare <jdelvare@suse.de> Fixes: 9e8269de hwmon: (ntc_thermistor) Add DT with IIO support to NTC thermistor driver Reviewed-by: Guenter Roeck <linux@roeck-us.net> Cc: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Cc: Doug Anderson <dianders@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-07hwmon: (emc1403) Support full range of known chip revision numbersJosef Gajdusek1-1/+1
commit 3a18e1398fc2dc9c32bbdc50664da3a77959a8d1 upstream. The datasheet for EMC1413/EMC1414, which is fully compatible to EMC1403/1404 and uses the same chip identification, references revision numbers 0x01, 0x03, and 0x04. Accept the full range of revision numbers from 0x01 to 0x04 to make sure none are missed. Signed-off-by: Josef Gajdusek <atx@atx.name> [Guenter Roeck: Updated headline and description] Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-07hwmon: (emc1403) fix inverted store_hyst()Josef Gajdusek1-1/+1
commit 17c048fc4bd95efea208a1920f169547d8588f1f upstream. Attempts to set the hysteresis value to a temperature below the target limit fails with "write error: Numerical result out of range" due to an inverted comparison. Signed-off-by: Josef Gajdusek <atx@atx.name> Reviewed-by: Jean Delvare <jdelvare@suse.de> [Guenter Roeck: Updated headline and description] Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-06hwmon: (max1668) Fix writing the minimum temperatureGuenter Roeck1-1/+1
commit 500a91571f0a5d0d3242d83802ea2fd1faccc66e upstream. When trying to set the minimum temperature, the driver was erroneously writing the maximum temperature into the chip. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-22hwmon: (ntc_thermistor) Avoid math overflowDoug Anderson1-3/+3
commit d3d89c468ceebbcf9423d1a3d66c5bf91f569570 upstream. The ntc thermistor code was doing math whose temporary result might have overflowed 32-bits. We need some casts in there to make it safe. In one example I found: - pullup_uV: 1800000 - result of iio_read_channel_raw: 3226 - 1800000 * 3226 => 0x15a1cbc80 Signed-off-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-06hwmon: (k10temp) Add support for Kaveri CPUsPhil Pokorny1-0/+1
commit d303b1b5fbb688282bbf72a534b9dfed7af9fe4f upstream. Add new PCI ID to support new model "Kaveri" family. Signed-off-by: Philip Pokorny <ppokorny@penguincomputing.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-25hwmon: (coretemp) Fix truncated name of alarm attributesJean Delvare1-1/+1
commit 3f9aec7610b39521c7c69d754de7265f6994c194 upstream. When the core number exceeds 9, the size of the buffer storing the alarm attribute name is insufficient and the attribute name is truncated. This causes libsensors to skip these attributes as the truncated name is not recognized. Reported-by: Andreas Hollmann <hollmann@in.tum.de> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-20hwmon: (w83l768ng) Fix fan speed control rangeJean Delvare1-3/+6
commit 33a7ab91d509fa33b4bcd3ce0038cc80298050da upstream. The W83L786NG stores the fan speed on 4 bits while the sysfs interface uses a 0-255 range. Thus the driver should scale the user input down to map it to the device range, and scale up the value read from the device before presenting it to the user. The reserved register nibble should be left unchanged. Signed-off-by: Jean Delvare <khali@linux-fr.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-20hwmon: (w83l786ng) Fix fan speed control mode setting and reportingBrian Carnes1-2/+2
commit cf7559bc053471f32373d71d04a9aa19e0b48d59 upstream. The wrong mask is used, which causes some fan speed control modes (pwmX_enable) to be incorrectly reported, and some modes to be impossible to set. [JD: add subject and description.] Signed-off-by: Brian Carnes <bmcarnes@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-20hwmon: HIH-6130: Support I2C bus drivers without I2C_FUNC_SMBUS_QUICKJosé Miguel Gonçalves1-2/+14
commit efabcc2123f0ed47870033b8d6fc73b50d76d635 upstream. Some I2C bus drivers do not allow zero-length data transfers which are required to start a measurement with the HIH6130/1 sensor. Nevertheless, we can overcome this limitation by writing a zero dummy byte. This byte is ignored by the sensor and was verified to be working with the OMAP I2C bus driver in a BeagleBone board. Signed-off-by: José Miguel Gonçalves <jose.goncalves@inov.pt> [Guenter Roeck: Simplified complexity of write_length initialization] Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-20hwmon: Prevent some divide by zeros in FAN_TO_REG()Dan Carpenter3-1/+5
commit 3806b45ba4655147a011df03242cc197ab986c43 upstream. The "rpm * div" operations can overflow here, so this patch adds an upper limit to rpm to prevent that. Jean Delvare helped me with this patch. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Roger Lucas <vt8231@hiddenengine.co.uk> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-29hwmon: (lm90) Fix max6696 alarm handlingGuenter Roeck1-4/+7
commit e41fae2b1ed8c78283d73651cd65be0228c0dd1c upstream. Bit 2 of status register 2 on MAX6696 (external diode 2 open) sets ALERT; the bit thus has to be listed in alert_alarms. Also display a message in the alert handler if the condition is encountered. Even though not all overtemperature conditions cause ALERT to be set, we should not ignore them in the alert handler. Display messages for all out-of-range conditions. Reported-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-18hwmon: (applesmc) Always read until end of dataHenrik Rydberg1-0/+13
commit 25f2bd7f5add608c1d1405938f39c96927b275ca upstream. The crash reported and investigated in commit 5f4513 turned out to be caused by a change to the read interface on newer (2012) SMCs. Tests by Chris show that simply reading the data valid line is enough for the problem to go away. Additional tests show that the newer SMCs no longer wait for the number of requested bytes, but start sending data right away. Apparently the number of bytes to read is no longer specified as before, but instead found out by reading until end of data. Failure to read until end of data confuses the state machine, which eventually causes the crash. As a remedy, assuming bit0 is the read valid line, make sure there is nothing more to read before leaving the read function. Tested to resolve the original problem, and runtested on MBA3,1, MBP4,1, MBP8,2, MBP10,1, MBP10,2. The patch seems to have no effect on machines before 2012. Tested-by: Chris Murphy <chris@cmurf.com> Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-05hwmon: (applesmc) Check key count before proceedingHenrik Rydberg1-1/+10
commit 5f4513864304672e6ea9eac60583eeac32e679f2 upstream. After reports from Chris and Josh Boyer of a rare crash in applesmc, Guenter pointed at the initialization problem fixed below. The patch has not been verified to fix the crash, but should be applied regardless. Reported-by: <jwboyer@fedoraproject.org> Suggested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-09-07hwmon: (k10temp) Add support for Fam16h (Kabini)Wei Hu2-3/+4
commit 30b146d1cb5e7560192057098eb705118bd5511f upstream. The temperature reporting interface stays the same, so we just add the PCI-ID to the list. Verified on AMD Olive Hill. Signed-off-by: Wei Hu <wei@aristanetworks.com> Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-14hwmon: (adt7470) Fix incorrect return code checkCurt Brune1-1/+1
commit 93d783bcca69bfacc8dc739d8a050498402587b5 upstream. In adt7470_write_word_data(), which writes two bytes using i2c_smbus_write_byte_data(), the return codes are incorrectly AND-ed together when they should be OR-ed together. The return code of i2c_smbus_write_byte_data() is zero for success. The upshot is only the first byte was ever written to the hardware. The 2nd byte was never written out. I noticed that trying to set the fan speed limits was not working correctly on my system. Setting the fan speed limits is the only code that uses adt7470_write_word_data(). After making the change the limit settings work and the alarms work also. Signed-off-by: Curt Brune <curt@cumulusnetworks.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-11hwmon: (max6697) fix MAX6581 idealityVivien Didelot1-2/+2
commit 5c52add19733eb36d8619713312f5604efef3502 upstream. Without this patch, the values for ideality (register 0x4b) and ideality selection mask (register 0x4c) are inverted. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-25hwmon: (nct6775) Drop unsupported fan alarm attributes for NCT6775Guenter Roeck1-5/+7
commit 41fa9a944fce1d7efd5ee3d50ac85b92f42dcc3d upstream. NCT6775 does not support alarms for fans 4 and 5. Drop the attributes. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-25hwmon: (nct6775) Fix temperature alarm attributesGuenter Roeck1-23/+57
commit b1d2bff6a61140454b9d203519cc686a2e9ef32f upstream. Driver displays wrong alarms for temperature attributes. Turns out that temperature alarm bits are not fixed, but determined by temperature source mapping. To fix the problem, walk through the temperature sources to determine the correct alarm bit associated with a given attribute. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-07hwmon: (adm1021) Strengthen chip detection for ADM1021, LM84 and MAX1617Guenter Roeck1-8/+50
On a system with both MAX1617 and JC42 sensors, JC42 sensors can be misdetected as LM84. Strengthen detection sufficiently enough to avoid this misdetection. Also improve detection for ADM1021. Modeled after chip detection code in sensors-detect command. Cc: stable@vger.kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Jean Delvare <khali@linux-fr.org> Acked-by: Jean Delvare <khali@linux-fr.org>
2013-05-19hwmon: (tmp401) Drop redundant safety on cache lifetimeJean Delvare1-1/+1
time_after (as opposed to time_after_equal) already ensures that the cache lifetime is at least as much as requested. There is no point in manually adding another jiffy to that value, and this can confuse the reader into wrong interpretation. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Imre Deak <imre.deak@intel.com> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-05-13hwmon: fix error return code in abituguru_probe()Wei Yongjun1-6/+10
Fix to return a negative error code from the error handling case instead of 0, as done elsewhere in this function. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Cc: stable@vger.kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-05-13hwmon: (iio_hwmon) Fix null pointer dereferenceAxel Lin1-1/+1
This patch fixes the null pointer dereference in goto error_release_channels path when allocate memory for st fails. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-05-11hwmon: (nct6775) Do not create non-existing attributesGuenter Roeck1-2/+4
Overtemperature and hysteresis registers only exist for primary temperature registers, not for alternates, so do not assign those registers when initializing alternates. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-05-11hwmon: (iio_hwmon) Fix missing iio_channel_release_all call if devm_kzalloc failAxel Lin1-2/+4
Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-05-04Merge branch 'hwmon-for-linus' of ↵Linus Torvalds2-8/+86
git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging Pull hwmon update from Jean Delvare: "Only lm75 driver updates this time" * 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: hwmon: (lm75) Add support for the Dallas/Maxim DS7505 hwmon: (lm75) Tune resolution and sample time per chip hwmon: (lm75) Prepare to support per-chip resolution and sample time hwmon: (lm75) Per-chip configuration register initialization
2013-05-04more mode_t whack-a-mole...Al Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-04hwmon: (lm75) Add support for the Dallas/Maxim DS7505Jean Delvare2-1/+8
Basically it's the same as the original DS75 but much faster. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Guenter Roeck <linux@roeck-us.net>
2013-05-04hwmon: (lm75) Tune resolution and sample time per chipJean Delvare1-6/+36
Most LM75-compatible chips can either sample much faster or with a much better resolution than the original LM75 chip. So far the lm75 driver did not let the user take benefit of these improvements. Do it now. I decided to almost always configure the chip to use the best resolution possible, which also means the longest sample time. The only chips for which I didn't are the DS75, DS1775 and STDS75, because they are really too slow in 12-bit mode (1.2 to 1.5 second worst case) so I went for 11-bit mode as a more reasonable tradeoff. This choice is dictated by the fact that the hwmon subsystem is meant for system monitoring, it has never been supposed to be ultra-fast, and as a matter of fact we do cache the sampled values in almost all drivers. If anyone isn't pleased with these default settings, they can always introduce a platform data structure or DT support for the lm75. That being said, it seems nobody ever complained that the driver wouldn't refresh the value faster than every 1.5 second, and the change made it faster for all chips even in 12-bit mode, so I don't expect any complaint. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Guenter Roeck <linux@roeck-us.net>
2013-05-04hwmon: (lm75) Prepare to support per-chip resolution and sample timeJean Delvare1-5/+26
Prepare the lm75 driver to support per-chip resolution and sample time. For now we only make the code generic enough to support it, but we still use the same, unchanged resolution (9-bit) and sample time (1.5 s) for all chips. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Guenter Roeck <linux@roeck-us.net>
2013-05-04hwmon: (lm75) Per-chip configuration register initializationJean Delvare1-2/+22
There is no standard for the configuration register bits of LM75-like chips. We shouldn't blindly clear bits setting the resolution as they are either unused or used for something else on some of the supported chips. So, switch to per-chip configuration initialization. This will allow for better tuning later, for example using more resolution bits when available. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Guenter Roeck <linux@roeck-us.net>
2013-04-30Merge tag 'for-v3.10' of git://git.infradead.org/battery-2.6Linus Torvalds5-0/+780
Pull battery updates from Anton Vorontsov: "Highlights: - OpenFirmware/DeviceTree support for the Power Supply core: the core now automatically populates supplied_from hierarchy from the device tree. With these patches chargers and batteries can now lookup each other without the board files support shim. Rhyland Klein at NVIDIA did the work - New ST-Ericsson ABX500 hwmon driver. The driver is heavily using the AB85xx core and depends on some recent changes to it, so that is why the driver comes through the battery tree. It has an appropriate ack from the hwmon maintainer (i.e. Guenter Roeck). Martin Persson at ST-Ericsson and Hongbo Zhang at Linaro authored the driver - Final bits to sync AB85xx ST-Ericsson changes into mainline. The changes touch mfd parts, but these were acked by the appropriate MFD maintainer (ie Samuel Ortiz). Lee Jones at Linaro did most of the work and lead the submission process. Minor changes, but still worth mentioning: - Battery temperature reporting fix for Nokia N900 phones - Versatile Express poweroff driver moved into drivers/power/reset/ - Tree-wide: use devm_kzalloc() where appropriate - Tree-wide: dev_pm_ops cleanups/fixes" * tag 'for-v3.10' of git://git.infradead.org/battery-2.6: (112 commits) pm2301-charger: Fix suspend/resume charger-manager: Use kmemdup instead of kzalloc + memcpy power_supply: Populate supplied_from hierarchy from the device tree power_supply: Add core support for supplied_from power_supply: Define Binding for power-supplies rx51_battery: Fix reporting temperature hwmon: Add ST-Ericsson ABX500 hwmon driver ab8500_bmdata: Export abx500_res_to_temp tables for hwmon ab8500_{bmdata,fg}: Add const attributes to some data arrays ab8500_bmdata: Eliminate CamelCase warning of some variables ab8500_btemp: Make ab8500_btemp_get* interfaces public goldfish_battery: Use resource_size() lp8788-charger: Use PAGE_SIZE for the sysfs read operation max8925_power: Use devm_kzalloc() da9030_battery: Use devm_kzalloc() da9052-battery: Use devm_kzalloc() ds2760_battery: Use devm_kzalloc() ds2780_battery: Use devm_kzalloc() gpio-charger: Use devm_kzalloc() isp1704_charger: Use devm_kzalloc() ...
2013-04-29Merge tag 'staging-3.10-rc1' of ↵Linus Torvalds3-0/+206
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging driver tree update from Greg Kroah-Hartman: "Here's the big staging driver tree update for 3.10-rc1 This update contains loads of comedi driver cleanups and fixes in here, iio updates, android driver changes, and other various staging driver cleanups. Thanks to some drivers being removed, and the comedi driver cleanups, we have removed more code than we added: 627 files changed, 65145 insertions(+), 76321 deletions(-) which is always nice to see. All of these have been in linux-next for a while." * tag 'staging-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (940 commits) staging: comedi: ni_labpc: fix legacy driver build staging: comedi: das800: cleanup the cio-das802/16 fifo comments staging: comedi: das800: rename CamelCase vars in das800_ai_do_cmd() staging: comedi: das800: tidy up the private data staging: comedi: das800: tidy up das800_interrupt() staging: comedi: das800: tidy up das800_ai_insn_read() staging: comedi: das800: tidy up das800_di_insn_bits() staging: comedi: das800: tidy up das800_do_insn_bits() staging: comedi: das800: remove extra divisor calculation call staging: comedi: das800: rename {enable,disable}_das800 staging: comedi: das800: tidy up subdevice init staging: comedi: das800: allow attaching without interrupt support staging: comedi: das800: interrupts are required for async command support staging: comedi: das800: tidy up das800_ai_do_cmdtest() staging: comedi: das800: remove 'volatile' on private data variables staging: comedi: das800: cleanup the boardinfo staging: comedi: das800: cleanup range table declarations staging: comedi: das800: introduce das800_ind_{write, read}() staging: comedi: das800: remove forward declarations staging: comedi: das800: move das800_set_frequency() ...
2013-04-21hwmon: (nct6775) Fix coding style problemsGuenter Roeck1-3/+3
Add space around binary operators (CodingStyle, chapter 3.1). Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-21hwmon: (nct6775) Constify stringsGuenter Roeck1-1/+1
nct6775_sio_names should be a constant pointer to an array of constant strings. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-21hwmon: (tmp401) Add support for TMP432Guenter Roeck2-38/+156
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>
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