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linux-stable/drivers/hwmon
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Thierry Reding 95dcd64bc5 hwmon: (pwm-fan) Set fan speed to 0 on suspend 
Technically this is not required because disabling the PWM should be
enough. However, when support for atomic operations was implemented in
the PWM subsystem, only actual changes to the PWM channel are applied
during pwm_config(), which means that during after resume from suspend
the old settings won't be applied.

One possible solution is for the PWM driver to implement its own PM
operations such that settings from before suspend get applied on resume.
This has the disadvantage of completely ignoring any particular ordering
requirements that PWM user drivers might have, so it is best to leave it
up to the user drivers to apply the settings that they want at the
appropriate time.

Another way to solve this would be to read back the current state of the
PWM at the time of resume. That way, in case the configuration was lost
during suspend, applying the old settings in PWM user drivers would
actually get them applied because they differ from the current settings.
However, not all PWM drivers support reading the hardware state, and not
all hardware may support it.

The best workaround at this point seems to be to let PWM user drivers
tell the PWM subsystem that the PWM is turned off by, in addition to
disabling it, also setting the duty cycle to 0. This causes the resume
operation to apply a configuration that is different from the current
configuration, resulting in the proper state from before suspend getting
restored.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2018-10-10 20:37:13 -07:00
..
pmbus drivers: hwmon: (pmbus/ltc2978) Add support for LTM4686 uModule 2018-10-10 20:37:13 -07:00
ab8500.c
abituguru.c
abituguru3.c
abx500.c hwmon: (abx500) drop the use of IRQF_NO_SUSPEND 2015-10-14 07:57:14 -07:00
abx500.h
acpi_power_meter.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
ad7314.c hwmon: (ad7314) Convert to devm_hwmon_device_register_with_groups 2016-06-27 18:58:03 -07:00
ad7414.c hwmon: (ad7414) Add OF device ID table 2017-04-02 07:01:53 -07:00
ad7418.c
adc128d818.c hwmon: (adc128d818) constify attribute_group structures. 2017-08-13 08:24:38 -07:00
adcxx.c spi: Drop owner assignment from spi_drivers 2015-10-28 10:30:17 +09:00
adm1021.c hwmon: (adm1021) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
adm1025.c hwmon: (adm1025) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
adm1026.c hwmon: (adm1026) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
adm1029.c
adm1031.c hwmon: (adm1031) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
adm9240.c hwmon: (adm9240) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
ads1015.c hwmon: (ads1015) Convert to using %pOF instead of full_name 2017-08-13 08:24:38 -07:00
ads7828.c hwmon: (ads7828) Accept optional parameters from device tree 2017-04-02 07:01:53 -07:00
ads7871.c hwmon: (ads7871) Convert to devm_hwmon_device_register_with_groups 2016-06-27 18:58:03 -07:00
adt7x10.c hwmon: (adt7x10) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
adt7x10.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
adt7310.c spi: Drop owner assignment from spi_drivers 2015-10-28 10:30:17 +09:00
adt7410.c
adt7411.c hwmon: (adt7411) add min, max and alarm attributes 2017-01-02 10:19:45 -08:00
adt7462.c hwmon: (adt7462) Fix overflows seen when writing into limit attributes 2016-12-09 21:54:31 -08:00
adt7470.c hwmon: (adt7470) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
adt7475.c hwmon: (adt7475) Make adt7475_read_word() return errors 2018-08-26 17:45:25 -07:00
amc6821.c hwmon: (amc6821) sign extension temperature 2016-12-02 13:28:04 -08:00
applesmc.c dmi: Mark all struct dmi_system_id instances const 2017-09-14 11:59:30 +02:00
asb100.c hwmon: (asb100) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
asc7621.c hwmon: (asc7621) remove redundant assignment to newval 2017-10-29 18:36:03 -07:00
aspeed-pwm-tacho.c hwmon: Convert to using %pOFn instead of device_node.name 2018-10-10 20:37:13 -07:00
asus_atk0110.c hwmon: (asus_atk0110) Use PTR_ERR_OR_ZERO instead of reimplementing its function 2018-10-10 20:37:13 -07:00
atxp1.c hwmon: (atxp1) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
coretemp.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
da9052-hwmon.c hwmon: (da9052) Increase sample rate when using TSI 2017-10-21 09:03:29 -07:00
da9055-hwmon.c
dell-smm-hwmon.c hwmon: (dell-smm) Disable fan support for Dell XPS13 9333 2018-06-16 16:40:36 -07:00
dme1737.c hwmon: (dme1737) Fix overflows seen when writing into limit attributes 2017-01-10 08:57:55 -08:00
ds620.c hwmon: (ds620) move header file out of I2C realm 2017-06-11 17:08:19 -07:00
ds1621.c hwmon: (ds1621) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
emc6w201.c hwmon: (emcw201) Fix overflows seen when writing into limit attributes 2016-12-12 11:33:44 -08:00
emc1403.c hwmon: Mark expected switch fall-throughs 2018-07-08 20:08:13 -07:00
emc2103.c hwmon: (emc2103) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
f71805f.c hwmon: (f71805f) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
f71882fg.c hwmon: (f71882fg) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
f75375s.c
fam15h_power.c hwmon: (fam15h_power) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
fschmd.c hwmon: (fschmd) fix typo 'can by' to 'can be' 2018-05-21 07:51:59 -07:00
ftsteutates.c hwmon: (ftsteutates) constify i2c_device_id 2017-08-29 17:44:23 -07:00
g760a.c hwmon: (g760a) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
g762.c hwmon: (g762) handle cleanup with devm_add_action 2018-03-10 19:00:14 -08:00
gl518sm.c hwmon: (gl518sm) Fix overflows seen when writing into limit attributes 2017-01-10 08:58:36 -08:00
gl520sm.c hwmon: (gl520sm) Fix overflows and crash seen when writing into limit attributes 2017-01-10 08:59:35 -08:00
gpio-fan.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
hih6130.c hwmon: (hih6130) Fix documentation of struct hih6130 2018-01-02 15:05:34 -08:00
hwmon-vid.c x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping 2018-02-15 01:15:52 +01:00
hwmon.c hwmon: Add support for power min, lcrit, min_alarm and lcrit_alarm 2018-07-18 10:01:46 +09:00
i5k_amb.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
i5500_temp.c hwmon: (i5500_temp) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
ibmaem.c hwmon: (ibmaem) constify aem_rw_sensor_template and aem_ro_sensor_template structures 2016-01-04 08:56:22 -08:00
ibmpex.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
ibmpowernv.c hwmon: (ibmpowernv) drop unnecessary OF name NULL checks 2018-10-10 20:37:13 -07:00
iio_hwmon.c hwmon: (iio_hwmon) Do not duplicate or sanitize fixed string 2018-10-10 20:37:13 -07:00
ina2xx.c hwmon: (ina2xx) fix sysfs shunt resistor read access 2018-08-26 17:45:25 -07:00
ina209.c hwmon: (ina209) Handled signed registers 2017-04-21 12:30:09 -07:00
ina3221.c hwmon: (ina3221) Fix negative limits 2016-06-27 18:58:04 -07:00
it87.c hwmon: (it87) Reapply probe path chip registers settings after resume 2017-08-13 08:24:38 -07:00
jc42.c hwmon: (jc42) optionally try to disable the SMBUS timeout 2017-11-30 13:12:44 -08:00
jz4740-hwmon.c hwmon: (jz4740) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
k8temp.c x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping 2018-02-15 01:15:52 +01:00
k10temp.c hwmon: (k10temp) Support all Family 15h Model 6xh and Model 7xh processors 2018-10-10 20:37:13 -07:00
Kconfig ARM: SoC driver updates 2018-08-23 13:52:46 -07:00
lineage-pem.c
lm63.c hwmon: (lm63) Add OF device ID table 2017-04-02 07:01:53 -07:00
lm70.c hwmon: (lm70) Add support for TI TMP122/124 2017-01-21 12:26:38 -08:00
lm73.c
lm75.c hwmon: (lm75) Add MAX31725/6 support 2018-10-10 20:37:13 -07:00
lm75.h
lm77.c
lm78.c hwmon: (lm78) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
lm80.c hwmon: (lm80) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
lm83.c hwmon: (lm83) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
lm85.c hwmon: (lm85) Add OF device ID table 2017-04-02 07:01:53 -07:00
lm87.c hwmon: (lm87) Add OF device ID table 2017-04-13 06:09:26 -07:00
lm90.c hwmon: (lm90) Add OF device ID table 2017-04-02 07:01:53 -07:00
lm92.c hwmon: (lm92) Fix whitespace issues 2018-10-10 20:37:13 -07:00
lm93.c hwmon: (lm93) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
lm95234.c hwmon: (lm95234) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
lm95241.c hwmon: (lm95241) Update module description to include LM95231 2016-09-13 07:28:01 -07:00
lm95245.c hwmon: (lm95245) Add OF device ID table 2017-04-02 07:01:53 -07:00
ltc2945.c
ltc2990.c hwmon: (ltc2990) support all measurement modes 2018-05-21 07:52:01 -07:00
ltc4151.c hwmon: (ltc4151) Export OF device ID table as module aliases 2017-01-21 08:57:41 -08:00
ltc4215.c
ltc4222.c
ltc4245.c hwmon: (ltc4245) move header file out of I2C realm 2017-06-11 17:08:19 -07:00
ltc4260.c
ltc4261.c
ltq-cputemp.c hwmon: (ltq-cputemp) add cpu temp sensor driver 2017-09-01 07:24:14 -07:00
Makefile ARM: SoC driver updates 2018-08-23 13:52:46 -07:00
max197.c headers: separate linux/mod_devicetable.h from linux/platform_device.h 2018-07-07 17:52:26 +02:00
max1111.c hwmon: (max1111) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
max1619.c hwmon: (max1619) Add dt binding 2017-10-29 18:36:03 -07:00
max1668.c
max6621.c hwmon: (max6621) Inverted if condition in max6621_read() 2017-10-29 18:36:03 -07:00
max6639.c hwmon: (max6639) move header file out of I2C realm 2017-06-11 17:08:19 -07:00
max6642.c
max6650.c hwmon: (max6650) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
max6697.c hwmon: (max6697) Add OF device ID table 2017-04-02 07:01:53 -07:00
max16065.c
max31722.c hwmon: (max31722) Add support for MAX31722/MAX31723 temperature sensors 2016-04-19 06:32:34 -07:00
max31790.c hwmon: (max31790) Set correct PWM value 2017-03-22 00:18:20 -07:00
mc13783-adc.c hwmon: (mc13783-adc) Switch to SPDX identifier 2018-10-10 20:37:13 -07:00
mcp3021.c hwmon: (mcp3021) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
menf21bmc_hwmon.c
mlxreg-fan.c hwmon: (mlxreg-fan) Add support for Mellanox FAN driver 2018-07-08 20:08:13 -07:00
nct6683.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
nct6775.c hwmon: (nct6775) Add support for NCT6798D 2018-10-10 20:37:13 -07:00
nct7802.c hwmon: (nct7802) constify attribute_group structures. 2017-08-13 08:24:38 -07:00
nct7904.c hwmon: (nct7904) Fix UNSPECIFIED_INT warning 2018-07-08 20:08:13 -07:00
npcm750-pwm-fan.c hwmon: Convert to using %pOFn instead of device_node.name 2018-10-10 20:37:13 -07:00
nsa320-hwmon.c hwmon: (nsa320) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
ntc_thermistor.c hwmon: (ntc_thermistor) Use devm_hwmon_device_register_with_groups 2016-09-08 21:34:15 -07:00
pc87360.c hwmon: (pc87360) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
pc87427.c hwmon: (pc87427) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
pcf8591.c hwmon: (pcf8591) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
powr1220.c
pwm-fan.c hwmon: (pwm-fan) Set fan speed to 0 on suspend 2018-10-10 20:37:13 -07:00
raspberrypi-hwmon.c hwmon: rpi: add module alias to raspberrypi-hwmon 2018-09-05 11:58:00 -07:00
s3c-hwmon.c
sch56xx-common.c hwmon: (sch56xx) Remove unneeded linux/miscdevice.h include 2017-01-02 10:19:45 -08:00
sch56xx-common.h
sch5627.c hwmon: (sch5627) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
sch5636.c hwmon: (sch5636) trivial fix of spelling mistake on revision 2016-04-25 07:26:29 -07:00
scmi-hwmon.c hwmon: (scmi) Remove redundant pointer check 2018-10-10 20:37:13 -07:00
scpi-hwmon.c hwmon: (scpi-hwmon) remove redundant continue 2018-10-10 20:37:13 -07:00
sht3x.c hwmon: (sht3x) wait predefined limits loading complete before access 2018-01-12 14:18:39 -08:00
sht15.c hwmon: (sht15) Switch to SPDX identifier 2018-10-10 20:37:13 -07:00
sht21.c hwmon: (sht21) Update data sheet URLs 2018-03-10 19:00:14 -08:00
shtc1.c
sis5595.c hwmon: (sis5595) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
smm665.c
smsc47b397.c
smsc47m1.c hwmon: (smsc47m1) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
smsc47m192.c hwmon: (smsc47m192) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
stts751.c hwmon: (stts751) Fix buffer size passed to snprintf 2017-10-29 18:36:03 -07:00
tc74.c
tc654.c hwmon: Add tc654 driver 2016-12-02 13:28:05 -08:00
thmc50.c
tmp102.c hwmon: (tmp102) Fix first temperature reading 2017-10-24 06:17:14 -07:00
tmp103.c hwmon: (tmp103) Use SIMPLE_DEV_PM_OPS helper macro 2017-04-24 06:30:41 -07:00
tmp108.c hwmon: Add Texas Instruments TMP108 temperature sensor driver. 2016-12-09 21:54:25 -08:00
tmp401.c hwmon: (tmp401) use smb word operations instead of 2 smb byte operations 2017-01-10 09:01:32 -08:00
tmp421.c hwmon: (tmp421) Add OF device ID table 2017-04-02 07:01:53 -07:00
ultra45_env.c
vexpress-hwmon.c hwmon: (vexpress) rename vexpress hwmon implementation 2016-03-05 06:25:33 -08:00
via-cputemp.c hwmon: (via-cputemp) support new centaur CPUs 2018-03-30 07:53:57 -07:00
via686a.c hwmon: (via686a) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
vt1211.c
vt8231.c hwmon: (vt8231) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
w83l785ts.c
w83l786ng.c
w83627ehf.c hwmon: (w83627ehf) Use request_muxed_region 2017-04-02 07:01:53 -07:00
w83627hf.c hwmon: (w83627hf) use permission-specific DEVICE_ATTR variants 2017-01-02 10:19:45 -08:00
w83773g.c hwmon: (w83773g) Fix fault detection and reporting 2018-01-02 15:05:34 -08:00
w83781d.c hwmon: (w83781d) Remove duplicate NULL check 2017-11-16 01:01:55 -08:00
w83791d.c hwmon: (w83791d) Remove duplicate NULL check 2017-11-16 01:02:23 -08:00
w83792d.c hwmon: (w83792d) Remove duplicate NULL check 2017-11-16 01:02:43 -08:00
w83793.c hwmon: (w83793) Remove duplicate NULL check 2017-11-16 01:03:19 -08:00
w83795.c
wm831x-hwmon.c
wm8350-hwmon.c
xgene-hwmon.c hwmon: (xgene) Minor clean up of ifdef and acpi_match_table reference 2017-11-01 06:14:52 -07:00