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Based on kernel version 3.15.4. Page generated on 2014-07-07 09:03 EST.

1	Kernel driver mc13783-adc
2	=========================
3	
4	Supported chips:
5	  * Freescale Atlas MC13783
6	    Prefix: 'mc13783'
7	    Datasheet: http://www.freescale.com/files/rf_if/doc/data_sheet/MC13783.pdf?fsrch=1
8	  * Freescale Atlas MC13892
9	    Prefix: 'mc13892'
10	    Datasheet: http://cache.freescale.com/files/analog/doc/data_sheet/MC13892.pdf?fsrch=1&sr=1
11	
12	Authors:
13	    Sascha Hauer <s.hauer@pengutronix.de>
14	    Luotao Fu <l.fu@pengutronix.de>
15	
16	Description
17	-----------
18	
19	The Freescale MC13783 and MC13892 are Power Management and Audio Circuits.
20	Among other things they contain a 10-bit A/D converter. The converter has 16
21	(MC13783) resp. 12 (MC13892) channels which can be used in different modes. The
22	A/D converter has a resolution of 2.25mV.
23	
24	Some channels can be used as General Purpose inputs or in a dedicated mode with
25	a chip internal scaling applied .
26	
27	Currently the driver only supports the Application Supply channel (BP / BPSNS),
28	the General Purpose inputs and touchscreen.
29	
30	See the following tables for the meaning of the different channels and their
31	chip internal scaling:
32	
33	MC13783:
34	Channel	Signal						Input Range	Scaling
35	-------------------------------------------------------------------------------
36	0	Battery Voltage (BATT)				2.50 - 4.65V	-2.40V
37	1	Battery Current (BATT - BATTISNS)		-50 - 50 mV	x20
38	2	Application Supply (BP)				2.50 - 4.65V	-2.40V
39	3	Charger Voltage (CHRGRAW)			0 - 10V /	/5
40								0 - 20V		/10
41	4	Charger Current (CHRGISNSP-CHRGISNSN)		-0.25 - 0.25V	x4
42	5	General Purpose ADIN5 / Battery Pack Thermistor	0 - 2.30V	No
43	6	General Purpose ADIN6 / Backup Voltage (LICELL)	0 - 2.30V /	No /
44								1.50 - 3.50V	-1.20V
45	7	General Purpose ADIN7 / UID / Die Temperature	0 - 2.30V /	No /
46								0 - 2.55V /	x0.9 / No
47	8	General Purpose ADIN8				0 - 2.30V	No
48	9	General Purpose ADIN9				0 - 2.30V	No
49	10	General Purpose ADIN10				0 - 2.30V	No
50	11	General Purpose ADIN11				0 - 2.30V	No
51	12	General Purpose TSX1 / Touchscreen X-plate 1	0 - 2.30V	No
52	13	General Purpose TSX2 / Touchscreen X-plate 2	0 - 2.30V	No
53	14	General Purpose TSY1 / Touchscreen Y-plate 1	0 - 2.30V	No
54	15	General Purpose TSY2 / Touchscreen Y-plate 2	0 - 2.30V	No
55	
56	MC13892:
57	Channel	Signal						Input Range	Scaling
58	-------------------------------------------------------------------------------
59	0	Battery Voltage (BATT)				0 - 4.8V	/2
60	1	Battery Current (BATT - BATTISNSCC)		-60 - 60 mV	x20
61	2	Application Supply (BPSNS)			0 - 4.8V	/2
62	3	Charger Voltage (CHRGRAW)			0 - 12V /	/5
63								0 - 20V		/10
64	4	Charger Current (CHRGISNS-BPSNS) /		-0.3 - 0.3V /	x4 /
65		Touchscreen X-plate 1				0 - 2.4V	No
66	5	General Purpose ADIN5 /	Battery Pack Thermistor	0 - 2.4V	No
67	6	General Purpose ADIN6 / Backup Voltage (LICELL)	0 - 2.4V /	No
68		Backup Voltage (LICELL)                        	0 - 3.6V	x2/3
69	7	General Purpose ADIN7 / UID / Die Temperature	0 - 2.4V /	No /
70								0 - 4.8V	/2
71	12	General Purpose TSX1 / Touchscreen X-plate 1	0 - 2.4V	No
72	13	General Purpose TSX2 / Touchscreen X-plate 2	0 - 2.4V	No
73	14	General Purpose TSY1 / Touchscreen Y-plate 1	0 - 2.4V	No
74	15	General Purpose TSY2 / Touchscreen Y-plate 2	0 - 2.4V	No
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