summaryrefslogtreecommitdiff
path: root/drivers/hwmon
AgeCommit message (Collapse)Author
2015-06-26Merge tag 'char-misc-4.2-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here's the big char/misc driver pull request for 4.2-rc1. Lots of mei, extcon, coresight, uio, mic, and other driver updates in here. Full details in the shortlog. All of these have been in linux-next for some time with no reported problems" * tag 'char-misc-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (176 commits) mei: me: wait for power gating exit confirmation mei: reset flow control on the last client disconnection MAINTAINERS: mei: add mei_cl_bus.h to maintained file list misc: sram: sort and clean up included headers misc: sram: move reserved block logic out of probe function misc: sram: add private struct device and virt_base members misc: sram: report correct SRAM pool size misc: sram: bump error message level on unclean driver unbinding misc: sram: fix device node reference leak on error misc: sram: fix enabled clock leak on error path misc: mic: Fix reported static checker warning misc: mic: Fix randconfig build error by including errno.h uio: pruss: Drop depends on ARCH_DAVINCI_DA850 from config uio: pruss: Add CONFIG_HAS_IOMEM dependence uio: pruss: Include <linux/sizes.h> extcon: Redefine the unique id of supported external connectors without 'enum extcon' type char:xilinx_hwicap:buffer_icap - change 1/0 to true/false for bool type variable in function buffer_icap_set_configuration(). Drivers: hv: vmbus: Allocate ring buffer memory in NUMA aware fashion parport: check exclusive access before register w1: use correct lock on error in w1_seq_show() ...
2015-06-23Merge tag 'hwmon-for-linus-v4.2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon updates from Guenter Roeck: - new driver for Microchip TC74 - support for ncpXXwf104 added to ntc_thermistor driver - minor cleanup * tag 'hwmon-for-linus-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: add driver for Microchip TC74 hwmon: (ntc_thermistor) Improve precision of resistance calculation hwmon: (ntc_thermistor) fix iio raw to microvolts conversion hwmon: (atxp1) Drop auto-detection hwmon: (atxp1) Drop FSF mailing address hwmon: Allow compile test of GPIO consumers if !GPIOLIB hwmon: (sht15) Constify platform_device_id hwmon: (max197) Constify platform_device_id hwmon: (ntc_thermistor) Add support for ncpXXwf104
2015-06-21hwmon: add driver for Microchip TC74Maciej S. Szmigiero
Add hwmon driver for the Microchip TC74. The TC74 is a single-input 8-bit I2C temperature sensor, with +-2 degrees centigrade accuracy. Signed-off-by: Maciej Szmigiero <mail@maciej.szmigiero.name> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-06-03hwmon: (ntc_thermistor) Improve precision of resistance calculationChris Lesiak
The function get_ohm_of_thermistor has both the measured voltage and the pullup voltage available in microvolts. But it was promptly converting both to millivolts before using them to calculate the thermistor resistance. That conversion unnecessarily hurt the precision of the calculation. For example, take the ncpXXwb473 connected to 5000 mV and pulled down through a 47000 ohm resistor. At 25 C, the resistance of the thermistor is 47000 ohms. The measured voltage will be 2500 mV. If we measure instead 2501 mV, then the calculated resistance will be 46962 ohms -- a difference of 38 ohms. So the precision of the resistance estimate could be increased by 38X by doing the calculations in microvolts. Signed-off-by: Chris Lesiak <chris.lesiak@licor.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-06-02hwmon: (ntc_thermistor) fix iio raw to microvolts conversionChris Lesiak
The function ntc_adc_iio_read was assuming both a 12 bit ADC and that pullup_uv is the same as the ADC reference voltage. If either assumption is false, then the result is incorrect. Attempt to use iio_convert_raw_to_processed to convert the raw value to microvolts. It will fail for iio channels that don't support support IIO_CHAN_INFO_SCALE; in that case fall back to the assumptions. Signed-off-by: Chris Lesiak <chris.lesiak@licor.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-06-02Merge branch 'linus' into sched/core, to resolve conflictIngo Molnar
Conflicts: arch/sparc/include/asm/topology_64.h Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-05-31hwmon: (atxp1) Drop auto-detectionGuenter Roeck
Auto-detection for this chip is highly unreliable, and one of its I2C addresses can also be used by EEPROMs, increasing the risk for false positives even more. Drop auto-detection entirely to remove the risk. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-05-31hwmon: (atxp1) Drop FSF mailing addressGuenter Roeck
The FSF mailing address may change and does not provide any real value. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-05-31hwmon: Allow compile test of GPIO consumers if !GPIOLIBGeert Uytterhoeven
The GPIO subsystem provides dummy GPIO consumer functions if GPIOLIB is not enabled. Hence drivers that depend on GPIOLIB, but use GPIO consumer functionality only, can still be compiled if GPIOLIB is not enabled. Relax the dependency on GPIOLIB if COMPILE_TEST is enabled, where appropriate. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Jean Delvare <jdelvare@suse.de> Cc: Guenter Roeck <linux@roeck-us.net> Cc: lm-sensors@lm-sensors.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-05-31hwmon: (sht15) Constify platform_device_idKrzysztof Kozlowski
The platform_device_id is not modified by the driver and core uses it as const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-05-31hwmon: (max197) Constify platform_device_idKrzysztof Kozlowski
The platform_device_id is not modified by the driver and core uses it as const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-05-31hwmon: (ntc_thermistor) Add support for ncpXXwf104Beomho Seo
This patch adds support for the ntc thermistor NCPXXWF104 series. Cc: Jean Delvare <jdelvare@suse.de> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Beomho Seo <beomho.seo@samsung.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-05-29hwmon: (nct6683) Add missing sysfs attribute initializationGuenter Roeck
The following error message is seen when loading the nct6683 driver with DEBUG_LOCK_ALLOC enabled. BUG: key ffff88040b2f0030 not in .data! ------------[ cut here ]------------ WARNING: CPU: 0 PID: 186 at kernel/locking/lockdep.c:2988 lockdep_init_map+0x469/0x630() DEBUG_LOCKS_WARN_ON(1) Caused by a missing call to sysfs_attr_init() when initializing sysfs attributes. Reported-by: Alexey Orishko <alexey.orishko@gmail.com> Reviewed-by: Jean Delvare <jdelvare@suse.de> Cc: stable@vger.kernel.org # v3.18+ Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-05-29hwmon: (nct6775) Add missing sysfs attribute initializationGuenter Roeck
The following error message is seen when loading the nct6775 driver with DEBUG_LOCK_ALLOC enabled. BUG: key ffff88040b2f0030 not in .data! ------------[ cut here ]------------ WARNING: CPU: 0 PID: 186 at kernel/locking/lockdep.c:2988 lockdep_init_map+0x469/0x630() DEBUG_LOCKS_WARN_ON(1) Caused by a missing call to sysfs_attr_init() when initializing sysfs attributes. Reported-by: Alexey Orishko <alexey.orishko@gmail.com> Reviewed-by: Jean Delvare <jdelvare@suse.de> Cc: stable@vger.kernel.org # v3.12+ Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-05-29hwmon: (tmp401) Do not auto-detect chip on I2C address 0x37Guenter Roeck
I2C address 0x37 may be used by EEPROMs, which can result in false positives. Do not attempt to detect a chip at this address. Reviewed-by: Jean Delvare <jdelvare@suse.de> Cc: stable@vger.kernel.org # v4.0+ Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-05-27coretemp: Replace cpu_sibling_mask() with topology_sibling_cpumask()Bartosz Golaszewski
The former duplicates the functionality of the latter but is neither documented nor arch-independent. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Cc: Benoit Cousson <bcousson@baylibre.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Jean Delvare <jdelvare@suse.de> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Oleg Drokin <oleg.drokin@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Cc: Russell King <linux@arm.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Viresh Kumar <viresh.kumar@linaro.org> Link: http://lkml.kernel.org/r/1432645896-12588-4-git-send-email-bgolaszewski@baylibre.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-05-26hwmon: (ntc_thermistor) Ensure iio channel is of type IIO_VOLTAGEChris Lesiak
When configured via device tree, the associated iio device needs to be measuring voltage for the conversion to resistance to be correct. Return -EINVAL if that is not the case. Signed-off-by: Chris Lesiak <chris.lesiak@licor.com> Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-05-24hwmon: Allow to compile dell-smm-hwmon driver without /proc/i8kPali Rohár
This patch splits CONFIG_I8K compile option to SENSORS_DELL_SMM and CONFIG_I8K. Option SENSORS_DELL_SMM is now used to enable compilation of dell-smm-hwmon driver and old CONFIG_I8K option to enable /proc/i8k interface in driver. So this change allows to compile dell-smm-hwmon driver without legacy /proc/i8k interface which is needed only for old Dell Inspirion models or for userspace i8kutils package. For backward compatibility when CONFIG_I8K is enabled then also SENSORS_DELL_SMM is enabled and so driver dell-smm-hwmon (with /proc/i8k) is compiled. Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-24hwmon: Rename i8k driver to dell-smm-hwmon and move it to hwmon treePali Rohár
This commit moves i8k driver to hwmon tree under name dell-smm-hwmon which is better name then abbreviation i8k. For backward compatibility is added macro MODULE_ALIAS("i8k") so modprobe will load driver also old name i8k. CONFIG_I8K compile option was not changed. This commit also adds me as maintainer of this new dell-smm-hwmon driver and remove Guenter Roeck from list who is implicit maintainer all hwmon drivers. Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-17hwmon: (w83795) use find_closest_descending() in pwm_freq_to_reg()Bartosz Golaszewski
Replace the loop iterating over pwm_freq_cksel0 with a call to find_closest_descending(). Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-04-17hwmon: (lm85) use find_closest() in x_TO_REG() functionsBartosz Golaszewski
Replace RANGE_TO_REG() and FREQ_TO_REG() implementations with calls to find_closest(). Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-04-17hwmon: (ina2xx) replace ina226_avg_bits() with find_closest()Bartosz Golaszewski
Use find_closest() to locate the closest average in ina226_avg_tab. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-04-12hwmon: (pwm-fan) Update the duty cycle inorder to control the pwm-fanAnand Moon
pwm_config() must be called with a duty cycle of 0 prior to calling pwm_disable() to ensure that the pwm signal is set to low. Reported-by: Markus Reichl <m.reichl@fivetechno.de> Tested-by: Markus Reichl <m.reichl@fivetechno.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com> Reviewed-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk> Signed-off-by: Anand Moon <linux.amoon@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-04-09hwmon: (it87) Use feature macros on sio_dataGuenter Roeck
Feature macros work on sio_data as well, so use them there. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-04-08hwmon: (ibmpowernv) Fix build error seen for some configurationsGuenter Roeck
Fix drivers/hwmon/ibmpowernv.c: In function 'get_logical_cpu': drivers/hwmon/ibmpowernv.c:121:3: error: implicit declaration of function 'get_hard_smp_processor_id' seen for some configurations, possibly if SMP is not configured. Fixes: 3df2f59f0aae ("hwmon: (ibmpowernv) pretty print labels") Cc: Cédric Le Goater <clg@fr.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-04-08hwmon: (gpio-fan) Move the thermal registration after registration is completeNishanth Menon
Thermal framework may already be ready and cooling policies might already be functional when we are attempting to register gpio fan as a cooling device. This can be reproduced by changing probe order in which registration of various modules are done in a system. In such a case, kernel generates an oops since the data structures are not completely populated with the wrong assumption that thermal framework is not yet ready. Fix this by reordering the thermal framework registration to occur after hwmon registration of the fan is complete. Example kernel oops: [ 149.005828] Unable to handle kernel NULL pointer dereference at virtual address 0000008c [ 149.014369] pgd = ecf48000 [ 149.017204] [0000008c] *pgd=ac065831, *pte=00000000, *ppte=00000000 [ 149.023820] Internal error: Oops: 17 [#1] SMP ARM [ 149.028745] Modules linked in: gpio_fan(+) cpufreq_dt ipv6 evdev leds_gpio led_class omap_wdt phy_omap_usb2 rtc_palmas palmas_pwrbutton tmp102 ti_soc_thermal dwc3_omap thermal_sys extcon rtc_omap rtc_ds1307 hwmon [ 149.048629] CPU: 1 PID: 1183 Comm: modprobe Not tainted 4.0.0-rc7-next-20150407-00002-g7a82da074c99 #3 [ 149.058383] Hardware name: Generic DRA74X (Flattened Device Tree) [ 149.064763] task: edec1240 ti: ec0e0000 task.ti: ec0e0000 [ 149.070421] PC is at dev_driver_string+0x0/0x38 [ 149.075165] LR is at __dev_printk+0x24/0x70 [ 149.079540] pc : [<c03d6cd0>] lr : [<c03d72c4>] psr: 20000013 [ 149.079540] sp : ec0e1c28 ip : edec1240 fp : 00000000 [ 149.091568] r10: edf3eee0 r9 : 00000000 r8 : ffffffff [ 149.097040] r7 : edf3eea0 r6 : 00000034 r5 : 00000010 r4 : ec0e1c44 [ 149.103871] r3 : ec0e1c4c r2 : ec0e1c44 r1 : c079d800 r0 : 00000010 [ 149.110709] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 149.118182] Control: 10c5387d Table: acf4806a DAC: 00000015 [ 149.124198] Process modprobe (pid: 1183, stack limit = 0xec0e0218) [ 149.130673] Stack: (0xec0e1c28 to 0xec0e2000) [ 149.135235] 1c20: 60000013 c05e2ae0 00000000 edf3ec00 ec934a10 c03d73d4 ... [ 149.392230] 1fe0: befe1888 befe1878 00019418 b6ea08f0 80000010 00000003 00000000 00000000 [ 149.400798] [<c03d6cd0>] (dev_driver_string) from [<c03d72c4>] (__dev_printk+0x24/0x70) [ 149.409193] [<c03d72c4>] (__dev_printk) from [<c03d73d4>] (dev_warn+0x34/0x48) [ 149.416767] [<c03d73d4>] (dev_warn) from [<bf0f54fc>] (get_fan_speed_index+0x94/0xa4 [gpio_fan]) [ 149.425980] [<bf0f54fc>] (get_fan_speed_index [gpio_fan]) from [<bf0f5524>] (gpio_fan_get_cur_state+0x18/0x30 [gpio_fan]) [ 149.437476] [<bf0f5524>] (gpio_fan_get_cur_state [gpio_fan]) from [<bf02767c>] (thermal_zone_trip_update+0xe8/0x2a4 [thermal_sys]) [ 149.449794] [<bf02767c>] (thermal_zone_trip_update [thermal_sys]) from [<bf027844>] (step_wise_throttle+0xc/0x74 [thermal_sys]) [ 149.461832] [<bf027844>] (step_wise_throttle [thermal_sys]) from [<bf024ff4>] (handle_thermal_trip+0x5c/0x188 [thermal_sys]) [ 149.473603] [<bf024ff4>] (handle_thermal_trip [thermal_sys]) from [<bf0256c4>] (thermal_zone_device_update+0x94/0x108 [thermal_sys]) [ 149.486104] [<bf0256c4>] (thermal_zone_device_update [thermal_sys]) from [<bf026470>] (__thermal_cooling_device_register+0x2e8/0x374 [thermal_sys]) [ 149.499956] [<bf026470>] (__thermal_cooling_device_register [thermal_sys]) from [<bf0f58e4>] (gpio_fan_probe+0x350/0x4d0 [gpio_fan]) [ 149.512438] [<bf0f58e4>] (gpio_fan_probe [gpio_fan]) from [<c03db8a0>] (platform_drv_probe+0x48/0x98) [ 149.522109] [<c03db8a0>] (platform_drv_probe) from [<c03da30c>] (driver_probe_device+0x1b0/0x26c) [ 149.531399] [<c03da30c>] (driver_probe_device) from [<c03da45c>] (__driver_attach+0x94/0x98) [ 149.540238] [<c03da45c>] (__driver_attach) from [<c03d8bb0>] (bus_for_each_dev+0x54/0x88) [ 149.548814] [<c03d8bb0>] (bus_for_each_dev) from [<c03d9a34>] (bus_add_driver+0xdc/0x1d4) [ 149.557381] [<c03d9a34>] (bus_add_driver) from [<c03dac30>] (driver_register+0x78/0xf4) [ 149.565765] [<c03dac30>] (driver_register) from [<c0009784>] (do_one_initcall+0x80/0x1d8) [ 149.574340] [<c0009784>] (do_one_initcall) from [<c00c2278>] (do_init_module+0x5c/0x1b8) [ 149.582833] [<c00c2278>] (do_init_module) from [<c00c3bbc>] (load_module+0x1720/0x1dcc) [ 149.591212] [<c00c3bbc>] (load_module) from [<c00c43d0>] (SyS_finit_module+0x68/0x6c) [ 149.599418] [<c00c43d0>] (SyS_finit_module) from [<c000f3c0>] (ret_fast_syscall+0x0/0x4c) [ 149.607994] Code: 15830000 e1a00006 e28dd008 e8bd8070 (e590307c) Cc: Eduardo Valentin <edubezval@gmail.com> Fixes: b5cf88e46bad ("(gpio-fan): Add thermal control hooks") Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-04-08hwmon: (ibmpowernv) pretty print labelsCédric Le Goater
The new OPAL device tree adds a few properties which can be used to add extra information on the sensor label. In the case of a cpu core sensor, the firmware exposes the physical identifier of the core in the "ibm,pir" property. The driver translates this identifier in a linux cpu number and prints out a range corresponding to the hardware threads of the core (as they share the same sensor). The numbering gives a hint on the localization of the core in the system (which socket, which chip). Signed-off-by: Cédric Le Goater <clg@fr.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-04-08hwmon: (ibmpowernv) add a label attributeCédric Le Goater
Currently, sensors are only identified by their type and index. The new OPAL device tree can expose extra properties to identify some sensors by their name or location. This patch adds the creation of a new hwmon *_label attribute when such properties are detected. Signed-off-by: Cédric Le Goater <clg@fr.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-04-08hwmon: (ibmpowernv) add support for the new device treeCédric Le Goater
The new OPAL device tree for sensors has a different layout and uses new property names, for the type and for the handler used to capture the sensor data. This patch modifies the ibmpowernv driver to support such a tree in a way preserving compatibility with older OPAL firmwares. This is achieved by changing the error path of the routine parsing an OPAL node name. The node is simply considered being from the new device tree layout and fallback values are used. Signed-off-by: Cédric Le Goater <clg@fr.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-04-08hwmon: (ibmpowernv) add a helper routine create_hwmon_attrCédric Le Goater
This should shorten a bit the code necessary to create a hmwon attribute. Signed-off-by: Cédric Le Goater <clg@fr.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-04-05hwmon: (it87) Add support for 6th fan of IT8620EGuenter Roeck
IT8620E supports up to 6 fan tachometers. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-04-05hwmon: (it87) Add support for IT8620EGuenter Roeck
IT8620E is mostly compatible to IT7828F. Add generic support for it. IT8620E supports up to 6 fan tachometers and 6 pwm controls. Support for the 6th tachometer and for the additional pwm controls are addded in separate patches. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-04-05hwmon: (it87) Add support for IT8790EGuenter Roeck
IT8790E is a super-IO chip with three fan tachometers. It is mostly compatible to IT8728F, but only supports three fan tachometers instead of five. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-04-05hwmon: (it87) Introduce feature flag to reflect internal in7 sensorGuenter Roeck
On some chips, in7 is always an internal voltage sensor. Introduce feature flag to reflect this condition to simplify adding support for new chips. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-04-05hwmon: (it87) Introduce configuration field for chip suffixGuenter Roeck
ITE chips may have 'E', 'F', or both 'E' and 'F' suffixes. Introduce suffic configuration to the it87_devices structure to simplify adding new chips. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-04-05hwmon: (it87) Fix PWM frequency display for chips with newer PWM controlGuenter Roeck
On chips with newer PWM control, the PWM frequency divider is 256 instead of 128. Since the base PWM frequency remained the same, the actual PWM frequency is half of what it used to be with the older PWM control mechanism. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-03-30hwmon: (it87) Fix pwm sysfs attribute removalGuenter Roeck
Detection if a pwm channel is supported was wrong on removal, causing the code to try removing non-existing sysfs attributes. That didn't matter much because sysfs attribute removal of non-existing files fails silently, and because the wrong evaluation always returned false, but should nevertheless be fixed. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-03-20hwmon: (ibmpowernv) do not use the OPAL index for hwmon attribute namesCédric Le Goater
The current OPAL firmware exposes the different sensors of an IBM Power system using node names such as : sensors/amb-temp#1-data sensors/amb-temp#1-thrs cooling-fan#1-data cooling-fan#1-faulted cooling-fan#1-thrs cooling-fan#2-data ... The ibmpowernv driver, when loaded, parses these names to extract the sensor index and the sensor attribute name. Unfortunately, this scheme makes it difficult to add sensors with a different layout (specially of the same type, like temperature) as the sensor index calculated in OPAL is directly used in the hwmon sysfs interface. What this patch does is add a independent hwmon index for each sensor. The increment of the hwmon index (temp, fan, power, etc.) is kept per sensor type in the sensor_group table. The sensor_data table is used to store the association of the hwmon and OPAL indexes, as we need to have the same hwmon index for different attributes of a same sensor. Signed-off-by: Cédric Le Goater <clg@fr.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-03-20hwmon: (ibmpowernv) change create_hwmon_attr_name() prototypeCédric Le Goater
It simplifies the creation of the hwmon attributes and will help when support for a new device tree layout is added. The patch also changes the name of the routine to parse_opal_node_name(). Signed-off-by: Cédric Le Goater <clg@fr.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-03-20hwmon: (ibmpowernv) add a convert_opal_attr_name() routineCédric Le Goater
It simplifies the create_hwmon_attr_name() routine and it clearly isolates the conversion done between the OPAL node names and hwmon attributes names. Signed-off-by: Cédric Le Goater <clg@fr.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-03-20hwmon: (ibmpowernv) add a get_sensor_type() routineCédric Le Goater
It will help in adding different compatible properties, coming from a new device tree layout for example. Signed-off-by: Cédric Le Goater <clg@fr.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-03-20hwmon: (ibmpowernv) replace AMBIENT_TEMP by TEMPCédric Le Goater
Ambient is too restrictive as there can be other temperature channels : core, memory, etc. Signed-off-by: Cédric Le Goater <clg@fr.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-03-16hwmon: (pwm-fan, vexpress) Constify of_device_id arrayFabian Frederick
of_device_id is always used as const. (See driver.of_match_table and open firmware functions) Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-03-15hwmon: (nct6775) Enable auxiliary fan monitoring on ASRock Z77 Pro4-MGuenter Roeck
Auxiliary fan monitoring is not enabled on ASRock Z77 Pro4-M with BIOS version 2.00 if booted in UEFI Ultra-FastBoot mode. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-03-15hwmon: (nct6775) Restore hardware monitoring logical device status on resumeGuenter Roeck
After a suspend/resume cycle it is not guaranteed that the hardware monitoring device is still enabled. Ensure that this is the case after resume. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-03-15hwmon: (nct6775) Convert to use SIMPLE_DEV_PM_OPSGuenter Roeck
Get rid of #ifdef CONFIG_PM by using SIMPLE_DEV_PM_OPS and declaring suspend and resume functions with __maybe_unused. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-03-10hwmon: (gpio-fan) Fix build with CONFIG_THERMAL=m and SENSORS_GPIO_FAN=yRandy Dunlap
Fix build error when CONFIG_THERMAL=m and SENSORS_GPIO_FAN=y by preventing that combination. Fixes these build errors: drivers/built-in.o: In function `gpio_fan_remove': gpio-fan.c:(.text+0x21e97e): undefined reference to `thermal_cooling_device_unregister' drivers/built-in.o: In function `gpio_fan_probe': gpio-fan.c:(.text+0x21efbc): undefined reference to `thermal_cooling_device_register' Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Jean Delvare <jdelvare@suse.de> Cc: Guenter Roeck <linux@roeck-us.net> Cc: lm-sensors@lm-sensors.org Cc: Simon Guinot <sguinot@lacie.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-03-09hwmon: (pwm-fan) Fix build when THERMAL=mRandy Dunlap
Fix build errors when CONFIG_THERMAL=m and SENSORS_PWM_FAN=y by restricting SENSORS_PWM_FAN to 'm' when THERMAL=m. drivers/built-in.o: In function `pwm_fan_remove': pwm-fan.c:(.text+0x22ba58): undefined reference to `thermal_cooling_device_unregister' drivers/built-in.o: In function `pwm_fan_probe': pwm-fan.c:(.text+0x22bebb): undefined reference to `thermal_of_cooling_device_register' pwm-fan.c:(.text+0x22bf11): undefined reference to `thermal_cdev_update' Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Kamil Debski <k.debski@samsung.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-03-09hwmon: (pwm-fan) Declare pwm_fan_of_get_cooling_data staticGuenter Roeck
Address the following sparse warnings. drivers/hwmon/pwm-fan.c:176:5: warning: symbol 'pwm_fan_of_get_cooling_data' was not declared. Should it be static? drivers/hwmon/pwm-fan.c:176:5: warning: no previous prototype for 'pwm_fan_of_get_cooling_data' pwm_fan_of_get_cooling_data is only used in the pwm-fan driver and thus should be declared static. Cc: Lukasz Majewski <l.majewski@samsung.com> Acked-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-03-09(gpio-fan): Add thermal control hooksNishanth Menon
Allow gpio-fan to be used as thermal cooling device for platforms that use GPIO maps to control fans. As part of this change, we make the shutdown and remove logic the same as well. Signed-off-by: Nishanth Menon <nm@ti.com> Acked-by: Eduardo Valentin <edubezval@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-29 10:27:33 +0000