Based on kernel version 4.16.1. Page generated on 2018-04-09 11:53 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