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16 Commits (29dd3b64b9edba3dd3dc8bb4d589869a4597a710)

Author SHA1 Message Date
Guenter Roeck c409fd43bd hwmon: (nct6775) Use ARRAY_SIZE for loops where possible
This ensures that the loop iterations are correct even if/when
the number of elements in an array changes.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-13 08:44:35 -07:00
Guenter Roeck 573728c647 hwmon: (nct6775) Enable both AUXTIN and VIN3 on NCT6776
Per datasheet, VIN3 and AUXTIN share the same external pin. However, there
is no clean way to detect this condition. Furthermore, both are reported
by the BIOS on Supermicro C7H61. It may thus be possible that chip revisions
exist where both attributes are supported at the same time.
Better play safe and report both.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:42 -07:00
Guenter Roeck 2c7fd30da2 hwmon: (nct6775) Expand scope of supported chips
NCT6775, NCT6776, and NCT6779 have a number of variants with the same
chip ID but different chip labels. Add text "or compatible" to the
message displayed when the driver is loaded and rephrase the Kconfig
entry to reflect that it also supports compatible chips.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:42 -07:00
Guenter Roeck 236d903948 hwmon: (nct6775) Drop read/write lock
The read/write lock is acquired for each read/write operation from/to the chip.
This occurs either during initialization, when it is not needed, or during
updates, when the update_lock is held as well, and it is not needed either.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:40 -07:00
Guenter Roeck 0fc1f8fc61 hwmon: (nct6775) Only report VID if supported and enabled
VID is not always enabled (NCT6775, NCT6776) or supported (NCT6779).

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:39 -07:00
Guenter Roeck 8e9285b0bb hwmon: (nct6775) Detect and report additional temperature sources
Scan all temperature sources used for fan control and report if additional
monitoring registers are available.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:39 -07:00
Guenter Roeck bbd8decd41 hwmon: (nct6775) Add support for weighted fan control
The NCT677X series support weighted fan control. In this mode, a secondary
temperature source is used in addition to the primary temperature source to
control fan speed. Add support for this feature.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:39 -07:00
Guenter Roeck cdcaeceb74 hwmon: (nct6775) Add support for automatic fan control
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:39 -07:00
Guenter Roeck 77eb5b3703 hwmon: (nct6775) Add support for pwm, pwm_mode, and pwm_enable
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:39 -07:00
Guenter Roeck 84d19d92f7 hwmon: (nct6775) Add power management support
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:39 -07:00
Guenter Roeck 47ece9645f hwmon: (nct6775) Add support for fan debounce module parameter
If set, fan debounce is enabled when loading the driver.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:39 -07:00
Guenter Roeck 5c25d954d3 hwmon: (nct6775) Add support for fanX_pulses sysfs attribute
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:39 -07:00
Guenter Roeck 1c65dc365e hwmon: (nct6775) Add support for fan speed attributes
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:39 -07:00
Guenter Roeck aa136e5dad hwmon: (nct6775) Add support for temperature sensors
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:38 -07:00
Guenter Roeck a6bd587842 hwmon: (nct6775) Add case open detection
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:38 -07:00
Guenter Roeck 9de2e2e84e hwmon: Driver for Nuvoton NCT6775F, NCT6776F, and NCT6779D
This driver will replace the w83627ehf driver for NCT6775F and NCT6776F,
and provides support for NCT6779D.

This patch provides support for voltage monitor attributes.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2013-04-07 21:16:38 -07:00