1*4882a593SmuzhiyunKernel driver mc13783-adc 2*4882a593Smuzhiyun========================= 3*4882a593Smuzhiyun 4*4882a593SmuzhiyunSupported chips: 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun * Freescale MC13783 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun Prefix: 'mc13783' 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun Datasheet: https://www.nxp.com/docs/en/data-sheet/MC13783.pdf 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun * Freescale MC13892 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun Prefix: 'mc13892' 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun Datasheet: https://www.nxp.com/docs/en/data-sheet/MC13892.pdf 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun 20*4882a593SmuzhiyunAuthors: 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun - Sascha Hauer <s.hauer@pengutronix.de> 23*4882a593Smuzhiyun - Luotao Fu <l.fu@pengutronix.de> 24*4882a593Smuzhiyun 25*4882a593SmuzhiyunDescription 26*4882a593Smuzhiyun----------- 27*4882a593Smuzhiyun 28*4882a593SmuzhiyunThe Freescale MC13783 and MC13892 are Power Management and Audio Circuits. 29*4882a593SmuzhiyunAmong other things they contain a 10-bit A/D converter. The converter has 16 30*4882a593Smuzhiyun(MC13783) resp. 12 (MC13892) channels which can be used in different modes. The 31*4882a593SmuzhiyunA/D converter has a resolution of 2.25mV. 32*4882a593Smuzhiyun 33*4882a593SmuzhiyunSome channels can be used as General Purpose inputs or in a dedicated mode with 34*4882a593Smuzhiyuna chip internal scaling applied . 35*4882a593Smuzhiyun 36*4882a593SmuzhiyunCurrently the driver only supports the Application Supply channel (BP / BPSNS), 37*4882a593Smuzhiyunthe General Purpose inputs and touchscreen. 38*4882a593Smuzhiyun 39*4882a593SmuzhiyunSee the following tables for the meaning of the different channels and their 40*4882a593Smuzhiyunchip internal scaling: 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun- MC13783: 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun======= =============================================== =============== ======= 45*4882a593SmuzhiyunChannel Signal Input Range Scaling 46*4882a593Smuzhiyun======= =============================================== =============== ======= 47*4882a593Smuzhiyun0 Battery Voltage (BATT) 2.50 - 4.65V -2.40V 48*4882a593Smuzhiyun1 Battery Current (BATT - BATTISNS) -50 - 50 mV x20 49*4882a593Smuzhiyun2 Application Supply (BP) 2.50 - 4.65V -2.40V 50*4882a593Smuzhiyun3 Charger Voltage (CHRGRAW) 0 - 10V / /5 51*4882a593Smuzhiyun 0 - 20V /10 52*4882a593Smuzhiyun4 Charger Current (CHRGISNSP-CHRGISNSN) -0.25 - 0.25V x4 53*4882a593Smuzhiyun5 General Purpose ADIN5 / Battery Pack Thermistor 0 - 2.30V No 54*4882a593Smuzhiyun6 General Purpose ADIN6 / Backup Voltage (LICELL) 0 - 2.30V / No / 55*4882a593Smuzhiyun 1.50 - 3.50V -1.20V 56*4882a593Smuzhiyun7 General Purpose ADIN7 / UID / Die Temperature 0 - 2.30V / No / 57*4882a593Smuzhiyun 0 - 2.55V / x0.9 / No 58*4882a593Smuzhiyun8 General Purpose ADIN8 0 - 2.30V No 59*4882a593Smuzhiyun9 General Purpose ADIN9 0 - 2.30V No 60*4882a593Smuzhiyun10 General Purpose ADIN10 0 - 2.30V No 61*4882a593Smuzhiyun11 General Purpose ADIN11 0 - 2.30V No 62*4882a593Smuzhiyun12 General Purpose TSX1 / Touchscreen X-plate 1 0 - 2.30V No 63*4882a593Smuzhiyun13 General Purpose TSX2 / Touchscreen X-plate 2 0 - 2.30V No 64*4882a593Smuzhiyun14 General Purpose TSY1 / Touchscreen Y-plate 1 0 - 2.30V No 65*4882a593Smuzhiyun15 General Purpose TSY2 / Touchscreen Y-plate 2 0 - 2.30V No 66*4882a593Smuzhiyun======= =============================================== =============== ======= 67*4882a593Smuzhiyun 68*4882a593Smuzhiyun- MC13892: 69*4882a593Smuzhiyun 70*4882a593Smuzhiyun======= =============================================== =============== ======= 71*4882a593SmuzhiyunChannel Signal Input Range Scaling 72*4882a593Smuzhiyun======= =============================================== =============== ======= 73*4882a593Smuzhiyun0 Battery Voltage (BATT) 0 - 4.8V /2 74*4882a593Smuzhiyun1 Battery Current (BATT - BATTISNSCC) -60 - 60 mV x20 75*4882a593Smuzhiyun2 Application Supply (BPSNS) 0 - 4.8V /2 76*4882a593Smuzhiyun3 Charger Voltage (CHRGRAW) 0 - 12V / /5 77*4882a593Smuzhiyun 0 - 20V /10 78*4882a593Smuzhiyun4 Charger Current (CHRGISNS-BPSNS) / -0.3 - 0.3V / x4 / 79*4882a593Smuzhiyun Touchscreen X-plate 1 0 - 2.4V No 80*4882a593Smuzhiyun5 General Purpose ADIN5 / Battery Pack Thermistor 0 - 2.4V No 81*4882a593Smuzhiyun6 General Purpose ADIN6 / Backup Voltage (LICELL) 0 - 2.4V / No 82*4882a593Smuzhiyun Backup Voltage (LICELL) 0 - 3.6V x2/3 83*4882a593Smuzhiyun7 General Purpose ADIN7 / UID / Die Temperature 0 - 2.4V / No / 84*4882a593Smuzhiyun 0 - 4.8V /2 85*4882a593Smuzhiyun12 General Purpose TSX1 / Touchscreen X-plate 1 0 - 2.4V No 86*4882a593Smuzhiyun13 General Purpose TSX2 / Touchscreen X-plate 2 0 - 2.4V No 87*4882a593Smuzhiyun14 General Purpose TSY1 / Touchscreen Y-plate 1 0 - 2.4V No 88*4882a593Smuzhiyun15 General Purpose TSY2 / Touchscreen Y-plate 2 0 - 2.4V No 89*4882a593Smuzhiyun======= =============================================== =============== ======= 90