projects / mirror_ubuntu-jammy-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 93ee0a75 LF |
1 | Kernel driver mc13783-adc |
| 2 | ========================= | |
| 3 | ||
| 4 | Supported chips: | |
| b04f2f7d | 5 | |
| 3d13aa37 | 6 | * Freescale MC13783 |
| b04f2f7d | 7 | |
| 0c273215 | 8 | Prefix: 'mc13783' |
| b04f2f7d | 9 | |
| 23d3f131 | 10 | Datasheet: https://www.nxp.com/docs/en/data-sheet/MC13783.pdf |
| b04f2f7d | 11 | |
| 3d13aa37 | 12 | * Freescale MC13892 |
| b04f2f7d | 13 | |
| 0c273215 | 14 | Prefix: 'mc13892' |
| b04f2f7d | 15 | |
| 23d3f131 | 16 | Datasheet: https://www.nxp.com/docs/en/data-sheet/MC13892.pdf |
| 93ee0a75 | 17 | |
| b04f2f7d MCC |
18 | |
| 19 | ||
| 93ee0a75 | 20 | Authors: |
| b04f2f7d MCC |
21 | |
| 22 | - Sascha Hauer <s.hauer@pengutronix.de> | |
| 23 | - Luotao Fu <l.fu@pengutronix.de> | |
| 93ee0a75 LF |
24 | |
| 25 | Description | |
| 26 | ----------- | |
| 27 | ||
| 0c273215 UKK |
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. | |
| 93ee0a75 | 32 | |
| 0c273215 UKK |
33 | Some channels can be used as General Purpose inputs or in a dedicated mode with |
| 34 | a chip internal scaling applied . | |
| 93ee0a75 | 35 | |
| 0c273215 UKK |
36 | Currently the driver only supports the Application Supply channel (BP / BPSNS), |
| 37 | the General Purpose inputs and touchscreen. | |
| 93ee0a75 | 38 | |
| 0c273215 UKK |
39 | See the following tables for the meaning of the different channels and their |
| 40 | chip internal scaling: | |
| 41 | ||
| b04f2f7d MCC |
42 | - MC13783: |
| 43 | ||
| 44 | ======= =============================================== =============== ======= | |
| 93ee0a75 | 45 | Channel Signal Input Range Scaling |
| b04f2f7d | 46 | ======= =============================================== =============== ======= |
| 93ee0a75 LF |
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 | |
| 51 | 0 - 20V /10 | |
| 0c273215 | 52 | 4 Charger Current (CHRGISNSP-CHRGISNSN) -0.25 - 0.25V x4 |
| 93ee0a75 LF |
53 | 5 General Purpose ADIN5 / Battery Pack Thermistor 0 - 2.30V No |
| 54 | 6 General Purpose ADIN6 / Backup Voltage (LICELL) 0 - 2.30V / No / | |
| 55 | 1.50 - 3.50V -1.20V | |
| 56 | 7 General Purpose ADIN7 / UID / Die Temperature 0 - 2.30V / No / | |
| 57 | 0 - 2.55V / x0.9 / 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 | |
| b04f2f7d MCC |
66 | ======= =============================================== =============== ======= |
| 67 | ||
| 68 | - MC13892: | |
| 0c273215 | 69 | |
| b04f2f7d | 70 | ======= =============================================== =============== ======= |
| 0c273215 | 71 | Channel Signal Input Range Scaling |
| b04f2f7d | 72 | ======= =============================================== =============== ======= |
| 0c273215 UKK |
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 | |
| 77 | 0 - 20V /10 | |
| 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 / | |
| 84 | 0 - 4.8V /2 | |
| 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 | |
| b04f2f7d | 89 | ======= =============================================== =============== ======= |