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path: root/drivers/hwmon/nct7802.c
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* hwmon: (nct7802) Auto-convert to use SENSOR_DEVICE_ATTR_{RO, RW, WO}Guenter Roeck2018-12-161-251/+157
| | | | | | | Auto-conversion was done done using the coccinelle script at https://github.com/groeck/coccinelle-patches/raw/master/hwmon/sensor-devattr-w6.cocci Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (nct7802) constify attribute_group structures.Arvind Yadav2017-08-131-5/+5
| | | | | | | | | | | | | | | | | attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by <linux/sysfs.h> work with const attribute_group. So mark the non-const structs as const. File size before: text data bss dec hex filename 6161 9400 0 15561 3cc9 drivers/hwmon/nct7802.o File size After adding 'const': text data bss dec hex filename 6465 9080 0 15545 3cb9 drivers/hwmon/nct7802.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (nct7802) Fix overflows seen when writing into limit attributesGuenter Roeck2016-12-121-3/+5
| | | | | | | | | | | | | | | | | | | Fix overflows seen when writing voltage and temperature limit attributes. The value passed to DIV_ROUND_CLOSEST() needs to be clamped, and the value parameter passed to nct7802_write_fan_min() is an unsigned long. Also, writing values larger than 2700000 into a fan limit attribute results in writing 0 into the chip's limit registers. The exact behavior when writing this value is unspecified. For consistency, report a limit of 1350000 if the chip register reads 0. This may be wrong, and the chip behavior should be verified with the actual chip, but it is better than reporting a value of 0 (which, when written, results in writing a value of 0x1fff into the chip register). Fixes: 3434f3783580 ("hwmon: Driver for Nuvoton NCT7802Y") Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (nct7802) Add auto_point attributesConstantine Shulyupin2015-08-091-4/+126
| | | | | | | | | Introduced REG_PWM, pwm[1..3]_auto_point[1..5]_temp, pwm[1..3]_auto_point[1..5]_pwm, nct7802_auto_point_attrs, nct7802_auto_point_group, updated nct7802_regmap_is_volatile Signed-off-by: Constantine Shulyupin <const@MakeLinux.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (nct7802) Add pwmX_enable attributeConstantine Shulyupin2015-08-091-0/+48
| | | | | | | | Introduced REG_SMARTFAN_EN, SMARTFAN_EN_SHIFT, pwmX_enable, show_pwm_enable, store_pwm_enable. Signed-off-by: Constantine Shulyupin <const@MakeLinux.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (nct7802) Add pwm mode attributesConstantine Shulyupin2015-08-091-0/+26
| | | | | | Introduced: show_pwm_mode, pwm1_mode, pwm2_mode, pwm2_mode Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (nct7802) Add pwm controlConstantine Shulyupin2015-08-091-0/+47
| | | | | | | | | Added fan output control registers. Modes of operation are PWM (default) and DC. Introduced show_pwm, store_pwm, nct7802_pwm_attrs, nct7802_pwm_group. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (nct7802) add temperature sensor type attributeConstantine Shulyupin2015-08-091-12/+60
| | | | | | | | | | | | | | Sensor type: 3 diode (current mode), MD=1 4 thermistor, MD=2 Reference: Nuvoton Hardware Monitoring IC NCT7802Y 7.2.32 Mode Selection Register Location : Index 22h Signed-off-by: Constantine Shulyupin <const@MakeLinux.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (nct7802) Fix integer overflow seen when writing voltage limitsGuenter Roeck2015-07-291-1/+1
| | | | | | | | | | | Writing a large value into a voltage limit attribute can result in an overflow due to an auto-conversion from unsigned long to unsigned int. Cc: Constantine Shulyupin <const@MakeLinux.com> Reviewed-by: Jean Delvare <jdelvare@suse.de> Cc: stable@vger.kernel.org # v4.1+ Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (nct7802) fix visibility of temp3Constantine Shulyupin2015-07-011-1/+1
| | | | | | | | | | | | Excerpt from datasheet: 7.2.32 Mode Selection Register RTD3_MD : 00=Closed , 01=Reserved , 10=Thermistor mode , 11=Voltage sense Show temp3 only in Thermistor mode Cc: stable@vger.kernel.org # v3.19+ Signed-off-by: Constantine Shulyupin <const@MakeLinux.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (nct7802) Constify struct regmap_configKrzysztof Kozlowski2015-01-251-1/+1
| | | | | | | | The regmap_config struct may be const because it is not modified by the driver and regmap_init() accepts pointer to const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: Driver for Nuvoton NCT7802YGuenter Roeck2014-11-301-0/+860
NCT7802Y is an I2C based hardware monitoring chip from Nuvoton. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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