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hwmon: (it87) Add support for IT8790E

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IT8790E is a super-IO chip with three fan tachometers. It is mostly
compatible to IT8728F, but only supports three fan tachometers
instead of five.

Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck 2015-03-25 23:26:28 -07:00
parent 7f5726c39a
commit 4ee07157d6
3 changed files with 25 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
Documentation/hwmon/it87
View File

@ -58,6 +58,10 @@ Supported chips:
Prefix: 'it8786'
Addresses scanned: from Super I/O config space (8 I/O ports)
Datasheet: Not publicly available
* IT8790E
Prefix: 'it8790'
Addresses scanned: from Super I/O config space (8 I/O ports)
Datasheet: Not publicly available
* SiS950 [clone of IT8705F]
Prefix: 'it87'
Addresses scanned: from Super I/O config space (8 I/O ports)
@ -102,9 +106,10 @@ motherboard models.
Description
-----------
This driver implements support for the IT8603E, IT8623E, IT8705F, IT8712F,
IT8716F, IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8758E, IT8771E,
IT8772E, IT8781F, IT8782F, IT8783E/F, IT8786E, and SiS950 chips.
This driver implements support for the IT8603E, IT8623E, IT8705F,
IT8712F, IT8716F, IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, 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
@ -145,6 +150,8 @@ The IT8603E/IT8623E is a custom design, hardware monitoring part is similar to
IT8728F. It only supports 16-bit fan mode, the full speed mode of the
fan is not supported (value 0 of pwmX_enable).
The IT8790E supports up to 3 fans. 16-bit fan mode is always enabled.
Temperatures are measured in degrees Celsius. An alarm is triggered once
when the Overtemperature Shutdown limit is crossed.

4
drivers/hwmon/Kconfig
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@ -600,8 +600,8 @@ config SENSORS_IT87
help
If you say yes here you get support for ITE IT8705F, IT8712F,
IT8716F, IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8758E,
IT8771E, IT8772E, IT8781F, IT8782F, IT8783E/F, IT8786E,
and IT8603E sensor chips, and the SiS950 clone.
IT8771E, IT8772E, IT8781F, IT8782F, IT8783E/F, IT8786E, IT8790E,
IT8603E, and IT8623E sensor chips, and the SiS950 clone.
This driver can also be built as a module. If so, the module
will be called it87.

14
drivers/hwmon/it87.c
View File

@ -27,6 +27,7 @@
* IT8782F Super I/O chip w/LPC interface
* IT8783E/F Super I/O chip w/LPC interface
* IT8786E Super I/O chip w/LPC interface
* IT8790E Super I/O chip w/LPC interface
* Sis950 A clone of the IT8705F
*
* Copyright (C) 2001 Chris Gauthron
@ -68,7 +69,7 @@
#define DRVNAME "it87"
enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728, it8771,
it8772, it8781, it8782, it8783, it8786, it8603 };
it8772, it8781, it8782, it8783, it8786, it8790, it8603 };
static unsigned short force_id;
module_param(force_id, ushort, 0);
@ -152,6 +153,7 @@ static inline void superio_exit(void)
#define IT8782F_DEVID 0x8782
#define IT8783E_DEVID 0x8783
#define IT8786E_DEVID 0x8786
#define IT8790E_DEVID 0x8790
#define IT8603E_DEVID 0x8603
#define IT8623E_DEVID 0x8623
#define IT87_ACT_REG 0x30
@ -359,6 +361,13 @@ static const struct it87_devices it87_devices[] = {
| FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL,
.peci_mask = 0x07,
},
[it8790] = {
.name = "it8790",
.suffix = "E",
.features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
| FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL,
.peci_mask = 0x07,
},
[it8603] = {
.name = "it8603",
.suffix = "E",
@ -1834,6 +1843,9 @@ static int __init it87_find(unsigned short *address,
case IT8786E_DEVID:
sio_data->type = it8786;
break;
case IT8790E_DEVID:
sio_data->type = it8790;
break;
case IT8603E_DEVID:
case IT8623E_DEVID:
sio_data->type = it8603;