Commit a0c1424a authored by Thomas Lorblanches's avatar Thomas Lorblanches Committed by Guenter Roeck
Browse files

hwmon: (it87) Add support for IT8786E 



IT8786E is mostly compatible with IT8771 / IT8772.
Parameters determined by testing various combinations.

Reviewed-by: default avatarJean Delvare <jdelvare@suse.de>
Signed-off-by: default avatarThomas Lorblanches <zlika_ese@hotmail.com>
[Guenter Roeck: merged from github, addressed review comments]
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 32dd7c40

Documentation/hwmon/it87

+5 −1
Original line number Diff line number Diff line
@@ -54,6 +54,10 @@ Supported chips: 
    Prefix: 'it8783'

    Addresses scanned: from Super I/O config space (8 I/O ports)

    Datasheet: Not publicly available

  * IT8786E

    Prefix: 'it8786'

    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)
@@ -100,7 +104,7 @@ Description 


This driver implements support for the IT8603E, IT8623E, IT8705F, IT8712F,

IT8716F, IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8758E, IT8771E,

IT8772E, IT8781F, IT8782F, IT8783E/F, and SiS950 chips.

IT8772E, IT8781F, IT8782F, IT8783E/F, IT8786E, and SiS950 chips.



These chips are 'Super I/O chips', supporting floppy disks, infrared ports,

joysticks and other miscellaneous stuff. For hardware monitoring, they

drivers/hwmon/Kconfig

+2 −2
Original line number Diff line number Diff line
@@ -599,8 +599,8 @@ 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 and IT8603E

	  sensor chips, and the SiS950 clone.

	  IT8771E, IT8772E, IT8781F, IT8782F, IT8783E/F, IT8786E,

	  and IT8603E sensor chips, and the SiS950 clone.



	  This driver can also be built as a module.  If so, the module

	  will be called it87.

drivers/hwmon/it87.c

+16 −6
Original line number Diff line number Diff line
@@ -26,6 +26,7 @@ 
 *            IT8781F  Super I/O chip w/LPC interface

 *            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

 *            Sis950   A clone of the IT8705F

 *

 *  Copyright (C) 2001 Chris Gauthron
@@ -67,7 +68,7 @@ 
#define DRVNAME "it87"



enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728, it8771,

	     it8772, it8781, it8782, it8783, it8603 };

	     it8772, it8781, it8782, it8783, it8786, it8603 };



static unsigned short force_id;

module_param(force_id, ushort, 0);
@@ -150,6 +151,7 @@ static inline void superio_exit(void) 
#define IT8781F_DEVID 0x8781

#define IT8782F_DEVID 0x8782

#define IT8783E_DEVID 0x8783

#define IT8786E_DEVID 0x8786

#define IT8603E_DEVID 0x8603

#define IT8623E_DEVID 0x8623

#define IT87_ACT_REG  0x30
@@ -335,6 +337,12 @@ static const struct it87_devices it87_devices[] = { 
		  | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG,

		.old_peci_mask = 0x4,

	},

	[it8786] = {

		.name = "it8786",

		.features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS

		  | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI,

		.peci_mask = 0x07,

	},

	[it8603] = {

		.name = "it8603",

		.features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
@@ -1789,6 +1797,9 @@ static int __init it87_find(unsigned short *address, 
	case IT8783E_DEVID:

		sio_data->type = it8783;

		break;

	case IT8786E_DEVID:

		sio_data->type = it8786;

		break;

	case IT8603E_DEVID:

	case IT8623E_DEVID:

		sio_data->type = it8603;
@@ -1816,8 +1827,8 @@ static int __init it87_find(unsigned short *address, 
	sio_data->revision = superio_inb(DEVREV) & 0x0f;

	pr_info("Found IT%04x%c chip at 0x%x, revision %d\n", chip_type,

		chip_type == 0x8771 || chip_type == 0x8772 ||

		chip_type == 0x8603 ? 'E' : 'F', *address,

		sio_data->revision);

		chip_type == 0x8786 || chip_type == 0x8603 ? 'E' : 'F',

		*address, sio_data->revision);



	/* in8 (Vbat) is always internal */

	sio_data->internal = (1 << 2);
@@ -1987,9 +1998,8 @@ static int __init it87_find(unsigned short *address, 
		if (reg & (1 << 0))

			sio_data->internal |= (1 << 0);

		if ((reg & (1 << 1)) || sio_data->type == it8721 ||

		    sio_data->type == it8728 ||

		    sio_data->type == it8771 ||

		    sio_data->type == it8772)

		    sio_data->type == it8728 || sio_data->type == it8771 ||

		    sio_data->type == it8772 || sio_data->type == it8786)

			sio_data->internal |= (1 << 1);



		/*

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