1Kernel driver mc13783-adc 2========================= 3 4Supported chips: 5 6 * Freescale MC13783 7 8 Prefix: 'mc13783' 9 10 Datasheet: https://www.nxp.com/docs/en/data-sheet/MC13783.pdf 11 12 * Freescale MC13892 13 14 Prefix: 'mc13892' 15 16 Datasheet: https://www.nxp.com/docs/en/data-sheet/MC13892.pdf 17 18 19 20Authors: 21 22 - Sascha Hauer <s.hauer@pengutronix.de> 23 - Luotao Fu <l.fu@pengutronix.de> 24 25Description 26----------- 27 28The Freescale MC13783 and MC13892 are Power Management and Audio Circuits. 29Among 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 31A/D converter has a resolution of 2.25mV. 32 33Some channels can be used as General Purpose inputs or in a dedicated mode with 34a chip internal scaling applied . 35 36Currently the driver only supports the Application Supply channel (BP / BPSNS), 37the General Purpose inputs and touchscreen. 38 39See the following tables for the meaning of the different channels and their 40chip internal scaling: 41 42- MC13783: 43 44======= =============================================== =============== ======= 45Channel Signal Input Range Scaling 46======= =============================================== =============== ======= 470 Battery Voltage (BATT) 2.50 - 4.65V -2.40V 481 Battery Current (BATT - BATTISNS) -50 - 50 mV x20 492 Application Supply (BP) 2.50 - 4.65V -2.40V 503 Charger Voltage (CHRGRAW) 0 - 10V / /5 51 0 - 20V /10 524 Charger Current (CHRGISNSP-CHRGISNSN) -0.25 - 0.25V x4 535 General Purpose ADIN5 / Battery Pack Thermistor 0 - 2.30V No 546 General Purpose ADIN6 / Backup Voltage (LICELL) 0 - 2.30V / No / 55 1.50 - 3.50V -1.20V 567 General Purpose ADIN7 / UID / Die Temperature 0 - 2.30V / No / 57 0 - 2.55V / x0.9 / No 588 General Purpose ADIN8 0 - 2.30V No 599 General Purpose ADIN9 0 - 2.30V No 6010 General Purpose ADIN10 0 - 2.30V No 6111 General Purpose ADIN11 0 - 2.30V No 6212 General Purpose TSX1 / Touchscreen X-plate 1 0 - 2.30V No 6313 General Purpose TSX2 / Touchscreen X-plate 2 0 - 2.30V No 6414 General Purpose TSY1 / Touchscreen Y-plate 1 0 - 2.30V No 6515 General Purpose TSY2 / Touchscreen Y-plate 2 0 - 2.30V No 66======= =============================================== =============== ======= 67 68- MC13892: 69 70======= =============================================== =============== ======= 71Channel Signal Input Range Scaling 72======= =============================================== =============== ======= 730 Battery Voltage (BATT) 0 - 4.8V /2 741 Battery Current (BATT - BATTISNSCC) -60 - 60 mV x20 752 Application Supply (BPSNS) 0 - 4.8V /2 763 Charger Voltage (CHRGRAW) 0 - 12V / /5 77 0 - 20V /10 784 Charger Current (CHRGISNS-BPSNS) / -0.3 - 0.3V / x4 / 79 Touchscreen X-plate 1 0 - 2.4V No 805 General Purpose ADIN5 / Battery Pack Thermistor 0 - 2.4V No 816 General Purpose ADIN6 / Backup Voltage (LICELL) 0 - 2.4V / No 82 Backup Voltage (LICELL) 0 - 3.6V x2/3 837 General Purpose ADIN7 / UID / Die Temperature 0 - 2.4V / No / 84 0 - 4.8V /2 8512 General Purpose TSX1 / Touchscreen X-plate 1 0 - 2.4V No 8613 General Purpose TSX2 / Touchscreen X-plate 2 0 - 2.4V No 8714 General Purpose TSY1 / Touchscreen Y-plate 1 0 - 2.4V No 8815 General Purpose TSY2 / Touchscreen Y-plate 2 0 - 2.4V No 89======= =============================================== =============== ======= 90