From ead8080351c988b9c4bb5ec261d7b4c97ebb2773 Mon Sep 17 00:00:00 2001 From: Justin Maggard Date: Wed, 5 Aug 2015 12:53:08 -0700 Subject: hwmon: (it87) Add support for IT8732F Add support for the IT8732F. This chip is pretty similar to IT8721F, with the main difference being that the ADC LSB is 10.9 mV instead of 12 mV. Signed-off-by: Justin Maggard Signed-off-by: Guenter Roeck --- Documentation/hwmon/it87 | 35 ++++++++++++++++++++++------------- 1 file changed, 22 insertions(+), 13 deletions(-) (limited to 'Documentation/hwmon') diff --git a/Documentation/hwmon/it87 b/Documentation/hwmon/it87 index e87294878334..733296d65449 100644 --- a/Documentation/hwmon/it87 +++ b/Documentation/hwmon/it87 @@ -38,6 +38,10 @@ Supported chips: Prefix: 'it8728' Addresses scanned: from Super I/O config space (8 I/O ports) Datasheet: Not publicly available + * IT8732F + Prefix: 'it8732' + Addresses scanned: from Super I/O config space (8 I/O ports) + Datasheet: Not publicly available * IT8771E Prefix: 'it8771' Addresses scanned: from Super I/O config space (8 I/O ports) @@ -111,9 +115,9 @@ Description ----------- This driver implements support for the IT8603E, IT8620E, IT8623E, IT8705F, -IT8712F, IT8716F, IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8758E, -IT8771E, IT8772E, IT8781F, IT8782F, IT8783E/F, IT8786E, IT8790E, and SiS950 -chips. +IT8712F, IT8716F, IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8732F, +IT8758E, IT8771E, IT8772E, IT8781F, IT8782F, IT8783E/F, IT8786E, IT8790E, and +SiS950 chips. These chips are 'Super I/O chips', supporting floppy disks, infrared ports, joysticks and other miscellaneous stuff. For hardware monitoring, they @@ -137,10 +141,10 @@ The IT8716F, IT8718F, IT8720F, IT8721F/IT8758E and later IT8712F revisions have support for 2 additional fans. The additional fans are supported by the driver. -The IT8716F, IT8718F, IT8720F, IT8721F/IT8758E, IT8781F, IT8782F, IT8783E/F, -and late IT8712F and IT8705F also have optional 16-bit tachometer counters -for fans 1 to 3. This is better (no more fan clock divider mess) but not -compatible with the older chips and revisions. The 16-bit tachometer mode +The IT8716F, IT8718F, IT8720F, IT8721F/IT8758E, IT8732F, IT8781F, IT8782F, +IT8783E/F, and late IT8712F and IT8705F also have optional 16-bit tachometer +counters for fans 1 to 3. This is better (no more fan clock divider mess) but +not compatible with the older chips and revisions. The 16-bit tachometer mode is enabled by the driver when one of the above chips is detected. The IT8726F is just bit enhanced IT8716F with additional hardware @@ -159,6 +163,9 @@ IT8728F. It only supports 16-bit fan mode. The IT8790E supports up to 3 fans. 16-bit fan mode is always enabled. +The IT8732F supports a closed-loop mode for fan control, but this is not +currently implemented by the driver. + Temperatures are measured in degrees Celsius. An alarm is triggered once when the Overtemperature Shutdown limit is crossed. @@ -173,12 +180,14 @@ is done. Voltage sensors (also known as IN sensors) report their values in volts. An alarm is triggered if the voltage has crossed a programmable minimum or maximum limit. Note that minimum in this case always means 'closest to -zero'; this is important for negative voltage measurements. All voltage -inputs can measure voltages between 0 and 4.08 volts, with a resolution of -0.016 volt (except IT8603E, IT8721F/IT8758E and IT8728F: 0.012 volt.) The -battery voltage in8 does not have limit registers. - -On the IT8603E, IT8721F/IT8758E, IT8781F, IT8782F, and IT8783E/F, some +zero'; this is important for negative voltage measurements. On most chips, all +voltage inputs can measure voltages between 0 and 4.08 volts, with a resolution +of 0.016 volt. IT8603E, IT8721F/IT8758E and IT8728F can measure between 0 and +3.06 volts, with a resolution of 0.012 volt. IT8732F can measure between 0 and +2.8 volts with a resolution of 0.0109 volt. The battery voltage in8 does not +have limit registers. + +On the IT8603E, IT8721F/IT8758E, IT8732F, IT8781F, IT8782F, and IT8783E/F, some voltage inputs are internal and scaled inside the chip: * in3 (optional) * in7 (optional for IT8781F, IT8782F, and IT8783E/F) -- cgit v1.2.3