Blame - Documentation/hwmon/zl6100 - kernel/msm-4.19

blob: 3d924b6b59e915ff043e933209d7d449b6f889ce [file] [log] [blame]

Guenter Roeck	200855e	2011-07-29 22:21:53 -0700	[diff] [blame]	1	Kernel driver zl6100
				2	====================
				3
				4	Supported chips:
				5	* Intersil / Zilker Labs ZL2004
				6	Prefix: 'zl2004'
				7	Addresses scanned: -
				8	Datasheet: http://www.intersil.com/data/fn/fn6847.pdf
Guenter Roeck	bc581e6	2011-10-01 16:50:36 -0700	[diff] [blame]	9	* Intersil / Zilker Labs ZL2005
				10	Prefix: 'zl2005'
				11	Addresses scanned: -
				12	Datasheet: http://www.intersil.com/data/fn/fn6848.pdf
Guenter Roeck	200855e	2011-07-29 22:21:53 -0700	[diff] [blame]	13	* Intersil / Zilker Labs ZL2006
				14	Prefix: 'zl2006'
				15	Addresses scanned: -
				16	Datasheet: http://www.intersil.com/data/fn/fn6850.pdf
				17	* Intersil / Zilker Labs ZL2008
				18	Prefix: 'zl2008'
				19	Addresses scanned: -
				20	Datasheet: http://www.intersil.com/data/fn/fn6859.pdf
				21	* Intersil / Zilker Labs ZL2105
				22	Prefix: 'zl2105'
				23	Addresses scanned: -
				24	Datasheet: http://www.intersil.com/data/fn/fn6851.pdf
				25	* Intersil / Zilker Labs ZL2106
				26	Prefix: 'zl2106'
				27	Addresses scanned: -
				28	Datasheet: http://www.intersil.com/data/fn/fn6852.pdf
				29	* Intersil / Zilker Labs ZL6100
				30	Prefix: 'zl6100'
				31	Addresses scanned: -
				32	Datasheet: http://www.intersil.com/data/fn/fn6876.pdf
				33	* Intersil / Zilker Labs ZL6105
				34	Prefix: 'zl6105'
				35	Addresses scanned: -
				36	Datasheet: http://www.intersil.com/data/fn/fn6906.pdf
Guenter Roeck	3360a10	2012-02-28 13:18:47 -0800	[diff] [blame]	37	* Intersil / Zilker Labs ZL9101M
				38	Prefix: 'zl9101'
				39	Addresses scanned: -
				40	Datasheet: http://www.intersil.com/data/fn/fn7669.pdf
				41	* Intersil / Zilker Labs ZL9117M
				42	Prefix: 'zl9117'
				43	Addresses scanned: -
				44	Datasheet: http://www.intersil.com/data/fn/fn7914.pdf
Guenter Roeck	443830f	2011-10-01 17:35:44 -0700	[diff] [blame]	45	* Ericsson BMR450, BMR451
				46	Prefix: 'bmr450', 'bmr451'
				47	Addresses scanned: -
				48	Datasheet:
				49	http://archive.ericsson.net/service/internet/picov/get?DocNo=28701-EN/LZT146401
				50	* Ericsson BMR462, BMR463, BMR464
				51	Prefixes: 'bmr462', 'bmr463', 'bmr464'
				52	Addresses scanned: -
				53	Datasheet:
				54	http://archive.ericsson.net/service/internet/picov/get?DocNo=28701-EN/LZT146256
				55
Guenter Roeck	200855e	2011-07-29 22:21:53 -0700	[diff] [blame]	56
				57	Author: Guenter Roeck <guenter.roeck@ericsson.com>
				58
				59
				60	Description
				61	-----------
				62
				63	This driver supports hardware montoring for Intersil / Zilker Labs ZL6100 and
				64	compatible digital DC-DC controllers.
				65
				66	The driver is a client driver to the core PMBus driver. Please see
				67	Documentation/hwmon/pmbus and Documentation.hwmon/pmbus-core for details
				68	on PMBus client drivers.
				69
				70
				71	Usage Notes
				72	-----------
				73
				74	This driver does not auto-detect devices. You will have to instantiate the
				75	devices explicitly. Please see Documentation/i2c/instantiating-devices for
				76	details.
				77
				78	WARNING: Do not access chip registers using the i2cdump command, and do not use
				79	any of the i2ctools commands on a command register used to save and restore
				80	configuration data (0x11, 0x12, 0x15, 0x16, and 0xf4). The chips supported by
				81	this driver interpret any access to those command registers (including read
				82	commands) as request to execute the command in question. Unless write accesses
				83	to those registers are protected, this may result in power loss, board resets,
				84	and/or Flash corruption. Worst case, your board may turn into a brick.
				85
				86
				87	Platform data support
				88	---------------------
				89
				90	The driver supports standard PMBus driver platform data.
				91
				92
				93	Module parameters
				94	-----------------
				95
				96	delay
				97	-----
				98
Guenter Roeck	fecfb64	2012-03-13 09:05:14 -0700	[diff] [blame]	99	Intersil/Zilker Labs DC-DC controllers require a minimum interval between I2C
				100	bus accesses. According to Intersil, the minimum interval is 2 ms, though 1 ms
				101	appears to be sufficient and has not caused any problems in testing. The problem
				102	is known to affect all currently supported chips. For manual override, the
				103	driver provides a writeable module parameter, 'delay', which can be used to set
				104	the interval to a value between 0 and 65,535 microseconds.
Guenter Roeck	200855e	2011-07-29 22:21:53 -0700	[diff] [blame]	105
				106
				107	Sysfs entries
				108	-------------
				109
				110	The following attributes are supported. Limits are read-write; all other
				111	attributes are read-only.
				112
				113	in1_label "vin"
				114	in1_input Measured input voltage.
				115	in1_min Minimum input voltage.
				116	in1_max Maximum input voltage.
Masanari Iida	40e4712	2012-03-04 23:16:11 +0900	[diff] [blame]	117	in1_lcrit Critical minimum input voltage.
Guenter Roeck	200855e	2011-07-29 22:21:53 -0700	[diff] [blame]	118	in1_crit Critical maximum input voltage.
				119	in1_min_alarm Input voltage low alarm.
				120	in1_max_alarm Input voltage high alarm.
				121	in1_lcrit_alarm Input voltage critical low alarm.
				122	in1_crit_alarm Input voltage critical high alarm.
				123
Guenter Roeck	1640eae	2012-03-07 03:54:50 -0800	[diff] [blame]	124	in2_label "vmon"
				125	in2_input Measured voltage on VMON (ZL2004) or VDRV (ZL9101M,
				126	ZL9117M) pin. Reported voltage is 16x the voltage on the
				127	pin (adjusted internally by the chip).
				128	in2_lcrit Critical minumum VMON/VDRV Voltage.
				129	in2_crit Critical maximum VMON/VDRV voltage.
				130	in2_lcrit_alarm VMON/VDRV voltage critical low alarm.
				131	in2_crit_alarm VMON/VDRV voltage critical high alarm.
				132
				133	vmon attributes are supported on ZL2004, ZL9101M,
				134	and ZL9117M only.
				135
				136	inX_label "vout1"
				137	inX_input Measured output voltage.
				138	inX_lcrit Critical minimum output Voltage.
				139	inX_crit Critical maximum output voltage.
				140	inX_lcrit_alarm Critical output voltage critical low alarm.
				141	inX_crit_alarm Critical output voltage critical high alarm.
				142
				143	X is 3 for ZL2004, ZL9101M, and ZL9117M, 2 otherwise.
Guenter Roeck	200855e	2011-07-29 22:21:53 -0700	[diff] [blame]	144
				145	curr1_label "iout1"
				146	curr1_input Measured output current.
				147	curr1_lcrit Critical minimum output current.
				148	curr1_crit Critical maximum output current.
				149	curr1_lcrit_alarm Output current critical low alarm.
				150	curr1_crit_alarm Output current critical high alarm.
				151
				152	temp[12]_input Measured temperature.
				153	temp[12]_min Minimum temperature.
				154	temp[12]_max Maximum temperature.
				155	temp[12]_lcrit Critical low temperature.
				156	temp[12]_crit Critical high temperature.
				157	temp[12]_min_alarm Chip temperature low alarm.
				158	temp[12]_max_alarm Chip temperature high alarm.
				159	temp[12]_lcrit_alarm Chip temperature critical low alarm.
				160	temp[12]_crit_alarm Chip temperature critical high alarm.