1 Kernel driver mc13783-adc
2 =========================
10 Datasheet: https://www.nxp.com/docs/en/data-sheet/MC13783.pdf
16 Datasheet: https://www.nxp.com/docs/en/data-sheet/MC13892.pdf
22 - Sascha Hauer <s.hauer@pengutronix.de>
23 - Luotao Fu <l.fu@pengutronix.de>
28 The Freescale MC13783 and MC13892 are Power Management and Audio Circuits.
29 Among other things they contain a 10-bit A/D converter. The converter has 16
30 (MC13783) resp. 12 (MC13892) channels which can be used in different modes. The
31 A/D converter has a resolution of 2.25mV.
33 Some channels can be used as General Purpose inputs or in a dedicated mode with
34 a chip internal scaling applied .
36 Currently the driver only supports the Application Supply channel (BP / BPSNS),
37 the General Purpose inputs and touchscreen.
39 See the following tables for the meaning of the different channels and their
40 chip internal scaling:
44 ======= =============================================== =============== =======
45 Channel Signal Input Range Scaling
46 ======= =============================================== =============== =======
47 0 Battery Voltage (BATT) 2.50 - 4.65V -2.40V
48 1 Battery Current (BATT - BATTISNS) -50 - 50 mV x20
49 2 Application Supply (BP) 2.50 - 4.65V -2.40V
50 3 Charger Voltage (CHRGRAW) 0 - 10V / /5
52 4 Charger Current (CHRGISNSP-CHRGISNSN) -0.25 - 0.25V x4
53 5 General Purpose ADIN5 / Battery Pack Thermistor 0 - 2.30V No
54 6 General Purpose ADIN6 / Backup Voltage (LICELL) 0 - 2.30V / No /
56 7 General Purpose ADIN7 / UID / Die Temperature 0 - 2.30V / No /
58 8 General Purpose ADIN8 0 - 2.30V No
59 9 General Purpose ADIN9 0 - 2.30V No
60 10 General Purpose ADIN10 0 - 2.30V No
61 11 General Purpose ADIN11 0 - 2.30V No
62 12 General Purpose TSX1 / Touchscreen X-plate 1 0 - 2.30V No
63 13 General Purpose TSX2 / Touchscreen X-plate 2 0 - 2.30V No
64 14 General Purpose TSY1 / Touchscreen Y-plate 1 0 - 2.30V No
65 15 General Purpose TSY2 / Touchscreen Y-plate 2 0 - 2.30V No
66 ======= =============================================== =============== =======
70 ======= =============================================== =============== =======
71 Channel Signal Input Range Scaling
72 ======= =============================================== =============== =======
73 0 Battery Voltage (BATT) 0 - 4.8V /2
74 1 Battery Current (BATT - BATTISNSCC) -60 - 60 mV x20
75 2 Application Supply (BPSNS) 0 - 4.8V /2
76 3 Charger Voltage (CHRGRAW) 0 - 12V / /5
78 4 Charger Current (CHRGISNS-BPSNS) / -0.3 - 0.3V / x4 /
79 Touchscreen X-plate 1 0 - 2.4V No
80 5 General Purpose ADIN5 / Battery Pack Thermistor 0 - 2.4V No
81 6 General Purpose ADIN6 / Backup Voltage (LICELL) 0 - 2.4V / No
82 Backup Voltage (LICELL) 0 - 3.6V x2/3
83 7 General Purpose ADIN7 / UID / Die Temperature 0 - 2.4V / No /
85 12 General Purpose TSX1 / Touchscreen X-plate 1 0 - 2.4V No
86 13 General Purpose TSX2 / Touchscreen X-plate 2 0 - 2.4V No
87 14 General Purpose TSY1 / Touchscreen Y-plate 1 0 - 2.4V No
88 15 General Purpose TSY2 / Touchscreen Y-plate 2 0 - 2.4V No
89 ======= =============================================== =============== =======