Commit ea694431 authored by Juerg Haefliger's avatar Juerg Haefliger Committed by Jean Delvare
Browse files

hwmon: (dme1737) Add SCH5127 support 



Add support for the hardware monitoring capabilities of the SCH5127
chip to the dme1737 driver.

Signed-off-by: default avatarJuerg Haefliger <juergh@gmail.com>
Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
Tested-by: default avatarJeff Rickman <jrickman@myamigos.us>
parent 38806bda

Documentation/hwmon/dme1737

+41 −10
Original line number Original line Diff line number Diff line
@@ -9,11 +9,15 @@ Supported chips: 
  * SMSC SCH3112, SCH3114, SCH3116

  * SMSC SCH3112, SCH3114, SCH3116

    Prefix: 'sch311x'

    Prefix: 'sch311x'

    Addresses scanned: none, address read from Super-I/O config space

    Addresses scanned: none, address read from Super-I/O config space

    Datasheet: http://www.nuhorizons.com/FeaturedProducts/Volume1/SMSC/311x.pdf

    Datasheet: Available on the Internet

  * SMSC SCH5027

  * SMSC SCH5027

    Prefix: 'sch5027'

    Prefix: 'sch5027'

    Addresses scanned: I2C 0x2c, 0x2d, 0x2e

    Addresses scanned: I2C 0x2c, 0x2d, 0x2e

    Datasheet: Provided by SMSC upon request and under NDA

    Datasheet: Provided by SMSC upon request and under NDA

  * SMSC SCH5127

    Prefix: 'sch5127'

    Addresses scanned: none, address read from Super-I/O config space

    Datasheet: Provided by SMSC upon request and under NDA





Authors:

Authors:

    Juerg Haefliger <juergh@gmail.com>

    Juerg Haefliger <juergh@gmail.com>
@@ -36,8 +40,8 @@ Description 
-----------

-----------





This driver implements support for the hardware monitoring capabilities of the

This driver implements support for the hardware monitoring capabilities of the

SMSC DME1737 and Asus A8000 (which are the same), SMSC SCH5027, and SMSC

SMSC DME1737 and Asus A8000 (which are the same), SMSC SCH5027, SCH311x,

SCH311x Super-I/O chips. These chips feature monitoring of 3 temp sensors

and SCH5127 Super-I/O chips. These chips feature monitoring of 3 temp sensors

temp[1-3] (2 remote diodes and 1 internal), 7 voltages in[0-6] (6 external and

temp[1-3] (2 remote diodes and 1 internal), 7 voltages in[0-6] (6 external and

1 internal) and up to 6 fan speeds fan[1-6]. Additionally, the chips implement

1 internal) and up to 6 fan speeds fan[1-6]. Additionally, the chips implement

up to 5 PWM outputs pwm[1-3,5-6] for controlling fan speeds both manually and

up to 5 PWM outputs pwm[1-3,5-6] for controlling fan speeds both manually and
@@ -48,14 +52,14 @@ Fan[3-6] and pwm[3,5-6] are optional features and their availability depends on 
the configuration of the chip. The driver will detect which features are

the configuration of the chip. The driver will detect which features are

present during initialization and create the sysfs attributes accordingly.

present during initialization and create the sysfs attributes accordingly.





For the SCH311x, fan[1-3] and pwm[1-3] are always present and fan[4-6] and

For the SCH311x and SCH5127, fan[1-3] and pwm[1-3] are always present and

pwm[5-6] don't exist.

fan[4-6] and pwm[5-6] don't exist.





The hardware monitoring features of the DME1737, A8000, and SCH5027 are only

The hardware monitoring features of the DME1737, A8000, and SCH5027 are only

accessible via SMBus, while the SCH311x only provides access via the ISA bus.

accessible via SMBus, while the SCH311x and SCH5127 only provide access via

The driver will therefore register itself as an I2C client driver if it detects

the ISA bus. The driver will therefore register itself as an I2C client driver

a DME1737, A8000, or SCH5027 and as a platform driver if it detects a SCH311x

if it detects a DME1737, A8000, or SCH5027 and as a platform driver if it

chip.

detects a SCH311x or SCH5127 chip.









Voltage Monitoring

Voltage Monitoring
@@ -76,7 +80,7 @@ DME1737, A8000: 
	in6: Vbat	(+3.0V)			0V - 4.38V

	in6: Vbat	(+3.0V)			0V - 4.38V





SCH311x:

SCH311x:

	in0: +2.5V				0V - 6.64V

	in0: +2.5V				0V - 3.32V

	in1: Vccp	(processor core)	0V - 2V

	in1: Vccp	(processor core)	0V - 2V

	in2: VCC	(internal +3.3V)	0V - 4.38V

	in2: VCC	(internal +3.3V)	0V - 4.38V

	in3: +5V				0V - 6.64V

	in3: +5V				0V - 6.64V
@@ -93,6 +97,15 @@ SCH5027: 
	in5: VTR	(+3.3V standby)		0V - 4.38V

	in5: VTR	(+3.3V standby)		0V - 4.38V

	in6: Vbat	(+3.0V)			0V - 4.38V

	in6: Vbat	(+3.0V)			0V - 4.38V





SCH5127:

	in0: +2.5				0V - 3.32V

	in1: Vccp	(processor core)	0V - 3V

	in2: VCC	(internal +3.3V)	0V - 4.38V

	in3: V2_IN				0V - 1.5V

	in4: V1_IN				0V - 1.5V

	in5: VTR	(+3.3V standby)		0V - 4.38V

	in6: Vbat	(+3.0V)			0V - 4.38V



Each voltage input has associated min and max limits which trigger an alarm

Each voltage input has associated min and max limits which trigger an alarm

when crossed.

when crossed.
@@ -293,3 +306,21 @@ pwm[1-3]_auto_point1_pwm RW Auto PWM pwm point. Auto_point1 is the 
pwm[1-3]_auto_point2_pwm	RO	Auto PWM pwm point. Auto_point2 is the

pwm[1-3]_auto_point2_pwm	RO	Auto PWM pwm point. Auto_point2 is the

					full-speed duty-cycle which is hard-

					full-speed duty-cycle which is hard-

					wired to 255 (100% duty-cycle).

					wired to 255 (100% duty-cycle).



Chip Differences

----------------



Feature			dme1737	sch311x	sch5027	sch5127

-------------------------------------------------------

temp[1-3]_offset	yes	yes

vid			yes

zone3			yes	yes	yes

zone[1-3]_hyst		yes	yes

pwm min/off		yes	yes

fan3			opt	yes	opt	yes

pwm3			opt	yes	opt	yes

fan4			opt		opt

fan5			opt		opt

pwm5			opt		opt

fan6			opt		opt

pwm6			opt		opt

drivers/hwmon/dme1737.c

+225 −103

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