1 Kernel driver twl4030-madc 2 ========================== 3 4 Supported chips: 5 6 * Texas Instruments TWL4030 7 8 Prefix: 'twl4030-madc' 9 10 11 Authors: 12 J Keerthy <j-keerthy@ti.com> 13 14 Description 15 ----------- 16 17 The Texas Instruments TWL4030 is a Power Management and Audio Circuit. Among 18 other things it contains a 10-bit A/D converter MADC. The converter has 16 19 channels which can be used in different modes. 20 21 22 See this table for the meaning of the different channels 23 24 ======= ========================================================== 25 Channel Signal 26 ======= ========================================================== 27 0 Battery type(BTYPE) 28 1 BCI: Battery temperature (BTEMP) 29 2 GP analog input 30 3 GP analog input 31 4 GP analog input 32 5 GP analog input 33 6 GP analog input 34 7 GP analog input 35 8 BCI: VBUS voltage(VBUS) 36 9 Backup Battery voltage (VBKP) 37 10 BCI: Battery charger current (ICHG) 38 11 BCI: Battery charger voltage (VCHG) 39 12 BCI: Main battery voltage (VBAT) 40 13 Reserved 41 14 Reserved 42 15 VRUSB Supply/Speaker left/Speaker right polarization level 43 ======= ========================================================== 44 45 46 The Sysfs nodes will represent the voltage in the units of mV, 47 the temperature channel shows the converted temperature in 48 degree Celsius. The Battery charging current channel represents 49 battery charging current in mA.
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