kernel/linux.git/drivers/hwmon/nct7802.c, branch linux-4.16.y

hwmon: (nct7802) constify attribute_group structures.

2017-08-13T15:24:38+00:00

attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by 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 Signed-off-by: Guenter Roeck

hwmon: (nct7802) Fix overflows seen when writing into limit attributes

2016-12-12T19:32:34+00:00

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 Signed-off-by: Guenter Roeck

hwmon: (nct7802) Add auto_point attributes

2015-08-09T20:44:27+00:00

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 Signed-off-by: Guenter Roeck

hwmon: (nct7802) Add pwmX_enable attribute

2015-08-09T20:44:26+00:00

Introduced REG_SMARTFAN_EN, SMARTFAN_EN_SHIFT, pwmX_enable, show_pwm_enable, store_pwm_enable. Signed-off-by: Constantine Shulyupin Signed-off-by: Guenter Roeck

hwmon: (nct7802) Add pwm mode attributes

2015-08-09T20:44:25+00:00

Introduced: show_pwm_mode, pwm1_mode, pwm2_mode, pwm2_mode Signed-off-by: Guenter Roeck

hwmon: (nct7802) Add pwm control

2015-08-09T20:44:25+00:00

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

hwmon: (nct7802) add temperature sensor type attribute

2015-08-09T20:44:25+00:00

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 Signed-off-by: Guenter Roeck

hwmon: (nct7802) Fix integer overflow seen when writing voltage limits

2015-07-30T03:06:50+00:00

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 Reviewed-by: Jean Delvare Cc: stable@vger.kernel.org # v4.1+ Signed-off-by: Guenter Roeck

hwmon: (nct7802) fix visibility of temp3

2015-07-01T20:56:27+00:00

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 Signed-off-by: Guenter Roeck

hwmon: (nct7802) Constify struct regmap_config

2015-01-26T05:23:58+00:00

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 Signed-off-by: Guenter Roeck