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Paul Barker 8afc6e00a1 hwmon: (pwm-fan) Fix RPM calculation 
[ Upstream commit fd8feec665 ]

To convert the number of pulses counted into an RPM estimation, we need
to divide by the width of our measurement interval instead of
multiplying by it. If the width of the measurement interval is zero we
don't update the RPM value to avoid dividing by zero.

We also don't need to do 64-bit division, with 32-bits we can handle a
fan running at over 4 million RPM.

Signed-off-by: Paul Barker <pbarker@konsulko.com>
Link: https://lore.kernel.org/r/20201111164643.7087-1-pbarker@konsulko.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2020-11-24 13:29:01 +01:00
..
occ hwmon: (occ) Fix division by zero issue 2019-07-21 19:18:45 -07:00
pmbus hwmon: (pmbus/max34440) Fix status register reads for MAX344{51,60,61} 2020-10-29 09:57:32 +01:00
Kconfig Main MIPS changes for v5.4: 2019-09-22 09:30:30 -07:00
Makefile Main MIPS changes for v5.4: 2019-09-22 09:30:30 -07:00
ab8500.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 197 2019-05-30 11:29:22 -07:00
abituguru.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
abituguru3.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
abx500.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 197 2019-05-30 11:29:22 -07:00
abx500.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 197 2019-05-30 11:29:22 -07:00
acpi_power_meter.c hwmon: (acpi_power_meter) Fix potential memory leak in acpi_power_meter_add() 2020-07-09 09:37:53 +02:00
ad7314.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 149 2019-05-30 11:25:18 -07:00
ad7414.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ad7418.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372 2019-06-05 17:37:10 +02:00
adc128d818.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
adcxx.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
adm1021.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
adm1025.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
adm1026.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
adm1029.c hwmon: Convert remaining drivers to use SPDX identifier 2019-06-23 18:34:11 -07:00
adm1031.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
adm9240.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
ads7828.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
ads7871.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 51 2019-05-24 17:36:42 +02:00
adt7x10.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
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 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 149 2019-05-30 11:25:18 -07:00
adt7410.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 149 2019-05-30 11:25:18 -07:00
adt7411.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
adt7462.c hwmon: (adt7462) Fix an error return in ADT7462_REG_VOLT() 2020-03-12 13:00:30 +01:00
adt7470.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
adt7475.c hwmon: (adt7475) Make volt2reg return same reg as reg2volt input 2020-01-29 16:45:24 +01:00
amc6821.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
applesmc.c hwmon: (applesmc) check status earlier. 2020-09-09 19:12:20 +02:00
as370-hwmon.c hwmon: (as370-hwmon) fix devm_platform_ioremap_resource.cocci warnings 2019-09-03 12:47:17 -07:00
asb100.c hwmon: (asb100) convert to i2c_new_dummy_device 2019-09-03 12:47:17 -07:00
asc7621.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
aspeed-pwm-tacho.c hwmon: (aspeed-pwm-tacho) Avoid possible buffer overflow 2020-07-29 10:18:37 +02:00
asus_atk0110.c hwmon: (asus_atk0110) no need to check return value of debugfs_create functions 2019-06-23 18:33:01 -07:00
atxp1.c docs: i2c: convert to ReST and add to driver-api bookset 2019-07-31 13:25:27 -06:00
coretemp.c hwmon (coretemp) Fix a memory leak bug 2019-08-31 08:04:57 -07:00
da9052-hwmon.c hwmon: (da9052) Synchronize access with mfd 2020-05-20 08:20:26 +02:00
da9055-hwmon.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
dell-smm-hwmon.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 118 2019-05-24 17:39:02 +02:00
dme1737.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
ds620.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
ds1621.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
emc6w201.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
emc1403.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 167 2019-05-30 11:26:39 -07:00
emc2103.c hwmon: (emc2103) fix unable to change fan pwm1_enable attribute 2020-07-22 09:33:14 +02:00
f71805f.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
f71882fg.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
f75375s.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
fam15h_power.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 56 2019-05-24 17:36:43 +02:00
fschmd.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
ftsteutates.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
g760a.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
g762.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 21 2019-05-21 11:28:47 +02:00
gl518sm.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
gl520sm.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
gpio-fan.c hwmon: (gpio-fan) fix sysfs notifications and udev events for gpio-fan alarms 2019-07-08 18:11:32 -07:00
hih6130.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102 2019-05-24 17:39:00 +02:00
hwmon-vid.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
hwmon.c hwmon: (core) Do not use device managed functions for memory allocations 2020-01-29 16:45:24 +01:00
i5k_amb.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
i5500_temp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
ibmaem.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
ibmpex.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
ibmpowernv.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 114 2019-05-24 17:39:01 +02:00
iio_hwmon.c hwmon: (iio_hwmon) Enable power exporting from IIO 2019-09-03 12:47:17 -07:00
ina2xx.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
ina209.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
ina3221.c hwmon: (ina3221) Fix read timeout issue 2019-10-28 18:46:55 -07:00
it87.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
jc42.c hwmon: (jc42) Fix name to have no illegal characters 2020-05-02 08:48:59 +02:00
k8temp.c hwmon: (k8temp) update to use new hwmon registration API 2019-09-03 12:47:17 -07:00
k10temp.c hwmon: (k10temp) Add AMD family 17h model 60h PCI match 2020-06-22 09:31:19 +02:00
lineage-pem.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
lm63.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
lm70.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
lm73.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 313 2019-06-05 17:37:04 +02:00
lm75.c hwmon: (lm75) Aproximate sample times to data-sheet values 2019-09-04 11:06:47 -07:00
lm75.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
lm77.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
lm78.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
lm80.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
lm83.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
lm85.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
lm87.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
lm90.c hwmon: (lm90) Introduce function to update configuration register 2019-07-08 18:11:31 -07:00
lm92.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
lm93.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
lm95234.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
lm95241.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
lm95245.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
lochnagar-hwmon.c hwmon: lochnagar: Add Lochnagar 2 hardware monitoring driver 2019-04-15 17:19:53 -07:00
ltc2945.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
ltc2990.c hwmon/ltc2990: Generalise DT to fwnode support 2019-09-03 12:47:17 -07:00
ltc4151.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
ltc4215.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
ltc4222.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
ltc4245.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
ltc4260.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
ltc4261.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
ltq-cputemp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
max197.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
max1111.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 332 2019-06-05 17:37:06 +02:00
max1619.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
max1668.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
max6621.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
max6639.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
max6642.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
max6650.c hwmon: (max6650) Fix unused variable warning 2019-06-23 18:33:01 -07:00
max6697.c hwmon: (max6697) Make sure the OVERT mask is set correctly 2020-07-09 09:37:53 +02:00
max16065.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
max31722.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 330 2019-06-05 17:37:06 +02:00
max31790.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
mc13783-adc.c hwmon: (mc13783-adc) Use permission specific SENSOR[_DEVICE]_ATTR variants 2019-02-18 14:23:29 -08:00
mcp3021.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
menf21bmc_hwmon.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mlxreg-fan.c Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal 2019-05-16 07:56:57 -07:00
nct6683.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
nct6775.c hwmon: (nct6775) Accept PECI Calibration as temperature source for NCT6798D 2020-07-29 10:18:39 +02:00
nct7802.c hwmon: (nct7802) Fix non-working alarm on voltages 2020-01-29 16:45:30 +01:00
nct7904.c hwmon: (nct7904) Correct divide by 0 2020-09-03 11:26:54 +02:00
npcm750-pwm-fan.c hwmon: (npcm750-pwm-fan) Remove dev_err() usage after platform_get_irq() 2019-09-03 12:47:17 -07:00
nsa320-hwmon.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 408 2019-06-05 17:37:14 +02:00
ntc_thermistor.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
pc87360.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
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powr1220.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
pwm-fan.c hwmon: (pwm-fan) Fix RPM calculation 2020-11-24 13:29:01 +01:00
raspberrypi-hwmon.c hwmon: (raspberrypi) update MODULE_AUTHOR() email address 2019-09-03 12:47:17 -07:00
s3c-hwmon.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
sch56xx-common.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
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sch5636.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
scmi-hwmon.c hwmon: (scmi) Fix potential buffer overflow in scmi_hwmon_probe() 2020-07-29 10:18:39 +02:00
scpi-hwmon.c hwmon: Convert remaining drivers to use SPDX identifier 2019-06-23 18:34:11 -07:00
sht3x.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
sht15.c docs: hwmon: Add an index file and rename docs to *.rst 2019-04-17 10:37:23 -07:00
sht21.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102 2019-05-24 17:39:00 +02:00
shtc1.c hwmon: (shtc1) add support for the SHTC3 sensor 2019-09-10 11:42:56 -07:00
sis5595.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
smm665.c It's a somewhat calmer cycle for docs this time, as the churn of the mass 2019-09-17 16:22:26 -07:00
smsc47b397.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
smsc47m1.c hwmon: (smsc47m1) fix (suspicious) outside array bounds warnings 2019-06-23 18:33:01 -07:00
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ultra45_env.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
vexpress-hwmon.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
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w83781d.c hwmon: (w83781d) convert to i2c_new_dummy_device 2019-09-03 12:47:17 -07:00
w83791d.c hwmon: (w83791d) convert to use devm_i2c_new_dummy_device 2019-09-03 12:47:17 -07:00
w83792d.c hwmon: (w83792d) convert to use devm_i2c_new_dummy_device 2019-09-03 12:47:17 -07:00
w83793.c hwmon: (w83793d) convert to use devm_i2c_new_dummy_device 2019-09-03 12:47:17 -07:00
w83795.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 272 2019-06-05 17:30:30 +02:00
wm831x-hwmon.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 271 2019-06-05 17:30:30 +02:00
wm8350-hwmon.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 271 2019-06-05 17:30:30 +02:00
xgene-hwmon.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00