Commit 08a8f6e9 authored by Rudolf Marek's avatar Rudolf Marek Committed by Mark M. Hoffman
Browse files

hwmon/it87: Add IT8726F support 



Add support for IT8726F chip driver, which is just same as
IT8716F with additional glue logic for AMD power sequencing.

Signed-off-by: default avatarRudolf Marek <r.marek@assembler.cz>
Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
parent 7817a39e

Documentation/hwmon/it87

+7 −2
Original line number Diff line number Diff line
@@ -12,11 +12,12 @@ Supported chips: 
    Addresses scanned: from Super I/O config space (8 I/O ports)

    Datasheet: Publicly available at the ITE website

               http://www.ite.com.tw/

  * IT8716F

  * IT8716F/IT8726F

    Prefix: 'it8716'

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

    Datasheet: Publicly available at the ITE website

               http://www.ite.com.tw/product_info/file/pc/IT8716F_V0.3.ZIP

               http://www.ite.com.tw/product_info/file/pc/IT8726F_V0.3.pdf

  * IT8718F

    Prefix: 'it8718'

    Addresses scanned: from Super I/O config space (8 I/O ports)
@@ -68,7 +69,7 @@ Description 
-----------



This driver implements support for the IT8705F, IT8712F, IT8716F,

IT8718F and SiS950 chips.

IT8718F, IT8726F and SiS950 chips.



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

joysticks and other miscellaneous stuff. For hardware monitoring, they
@@ -97,6 +98,10 @@ clock divider mess) but not compatible with the older chips and 
revisions. For now, the driver only uses the 16-bit mode on the

IT8716F and IT8718F.



The IT8726F is just bit enhanced IT8716F with additional hardware

for AMD power sequencing. Therefore the chip will appear as IT8716F

to userspace applications.



Temperatures are measured in degrees Celsius. An alarm is triggered once

when the Overtemperature Shutdown limit is crossed.

drivers/hwmon/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -255,7 +255,7 @@ config SENSORS_IT87 
	select HWMON_VID

	help

	  If you say yes here you get support for ITE IT8705F, IT8712F,

	  IT8716F and IT8718F sensor chips, and the SiS960 clone.

	  IT8716F, IT8718F and IT8726F sensor chips, and the SiS960 clone.



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

	  will be called it87.

drivers/hwmon/it87.c

+6 −1
Original line number Diff line number Diff line
@@ -6,6 +6,7 @@ 
              IT8712F  Super I/O chip w/LPC interface

              IT8716F  Super I/O chip w/LPC interface

              IT8718F  Super I/O chip w/LPC interface

              IT8726F  Super I/O chip w/LPC interface

              Sis950   A clone of the IT8705F



    Copyright (C) 2001 Chris Gauthron <chrisg@0-in.com>
@@ -97,6 +98,7 @@ superio_exit(void) 
#define IT8705F_DEVID 0x8705

#define IT8716F_DEVID 0x8716

#define IT8718F_DEVID 0x8718

#define IT8726F_DEVID 0x8726

#define IT87_ACT_REG  0x30

#define IT87_BASE_REG 0x60
@@ -885,6 +887,7 @@ static int __init it87_find(unsigned short *address) 
	chip_type = superio_inw(DEVID);

	if (chip_type != IT8712F_DEVID

	 && chip_type != IT8716F_DEVID

	 && chip_type != IT8726F_DEVID

	 && chip_type != IT8718F_DEVID

	 && chip_type != IT8705F_DEVID)

	 	goto exit;
@@ -965,6 +968,8 @@ static int it87_detect(struct i2c_adapter *adapter) 
		data->type = it8712;

		name = "it8712";

		break;

	case IT8726F_DEVID:

	/* fall through */

	case IT8716F_DEVID:

		data->type = it8716;

		name = "it8716";
@@ -1389,7 +1394,7 @@ static void __exit sm_it87_exit(void) 


MODULE_AUTHOR("Chris Gauthron <chrisg@0-in.com>, "

	      "Jean Delvare <khali@linux-fr.org>");

MODULE_DESCRIPTION("IT8705F/8712F/8716F/8718F, SiS950 driver");

MODULE_DESCRIPTION("IT8705F/8712F/8716F/8718F/8726F, SiS950 driver");

module_param(update_vbat, bool, 0);

MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value");

module_param(fix_pwm_polarity, bool, 0);