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Commit 6771ea1f authored by Jean Delvare's avatar Jean Delvare
Browse files

hwmon: (lm90) Add support for the Winbond/Nuvoton W83L771AWG/ASG 



This chips is found on several Zotac Ion ITX boards, amongst others.

Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
Cc: MC Matti <mcmatti17@googlemail.com>
Cc: Manuel Lamotte-Schubert <mls@pronego.com>
parent 64ba9926

Documentation/hwmon/lm90

+10 −0
Original line number Diff line number Diff line
@@ -84,6 +84,10 @@ Supported chips: 
    Addresses scanned: I2C 0x4c

    Datasheet: Publicly available at the Maxim website

               http://www.maxim-ic.com/quick_view2.cfm/qv_pk/3500

  * Winbond/Nuvoton W83L771AWG/ASG

    Prefix: 'w83l771'

    Addresses scanned: I2C 0x4c

    Datasheet: Not publicly available, can be requested from Nuvoton





Author: Jean Delvare <khali@linux-fr.org>
@@ -147,6 +151,12 @@ MAX6680 and MAX6681: 
  * Selectable address

  * Remote sensor type selection



W83L771AWG/ASG

  * The AWG and ASG variants only differ in package format.

  * Filter and alert configuration register at 0xBF

  * Diode ideality factor configuration (remote sensor) at 0xE3

  * Moving average (depending on conversion rate)



All temperature values are given in degrees Celsius. Resolution

is 1.0 degree for the local temperature, 0.125 degree for the remote

temperature, except for the MAX6657, MAX6658 and MAX6659 which have a

drivers/hwmon/Kconfig

+3 −2
Original line number Diff line number Diff line
@@ -563,9 +563,10 @@ config SENSORS_LM90 
	depends on I2C

	help

	  If you say yes here you get support for National Semiconductor LM90,

	  LM86, LM89 and LM99, Analog Devices ADM1032 and ADT7461, and Maxim

	  LM86, LM89 and LM99, Analog Devices ADM1032 and ADT7461, Maxim

	  MAX6646, MAX6647, MAX6648, MAX6649, MAX6657, MAX6658, MAX6659,

	  MAX6680, MAX6681 and MAX6692 sensor chips.

	  MAX6680, MAX6681 and MAX6692, and Winbond/Nuvoton W83L771AWG/ASG

	  sensor chips.



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

	  will be called lm90.

drivers/hwmon/lm90.c

+11 −1
Original line number Diff line number Diff line
@@ -93,7 +93,8 @@ 
static const unsigned short normal_i2c[] = {

	0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e, I2C_CLIENT_END };



enum chips { lm90, adm1032, lm99, lm86, max6657, adt7461, max6680, max6646 };

enum chips { lm90, adm1032, lm99, lm86, max6657, adt7461, max6680, max6646,

	w83l771 };



/*

 * The LM90 registers
@@ -173,6 +174,7 @@ static const struct i2c_device_id lm90_id[] = { 
	{ "max6659", max6657 },

	{ "max6680", max6680 },

	{ "max6681", max6680 },

	{ "w83l771", w83l771 },

	{ }

};

MODULE_DEVICE_TABLE(i2c, lm90_id);
@@ -758,6 +760,14 @@ static int lm90_detect(struct i2c_client *new_client, 
		 && reg_convrate <= 0x07) {

			name = "max6646";

		}

	} else

	if (address == 0x4C

	 && man_id == 0x5C) { /* Winbond/Nuvoton */

		if ((chip_id & 0xFE) == 0x10 /* W83L771AWG/ASG */

		 && (reg_config1 & 0x2A) == 0x00

		 && reg_convrate <= 0x08) {

			name = "w83l771";

		}

	}



	if (!name) { /* identification failed */