Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / hwmon / twl4030-madc-hwmon

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+Kernel driver twl4030-madc
+=========================
+
+Supported chips:
+       * Texas Instruments TWL4030
+       Prefix: 'twl4030-madc'
+
+
+Authors:
+       J Keerthy <j-keerthy@ti.com>
+
+Description
+-----------
+
+The Texas Instruments TWL4030 is a Power Management and Audio Circuit. Among
+other things it contains a 10-bit A/D converter MADC. The converter has 16
+channels which can be used in different modes.
+
+
+See this table for the meaning of the different channels
+
+Channel Signal
+------------------------------------------
+0      Battery type(BTYPE)
+1      BCI: Battery temperature (BTEMP)
+2      GP analog input
+3      GP analog input
+4      GP analog input
+5      GP analog input
+6      GP analog input
+7      GP analog input
+8      BCI: VBUS voltage(VBUS)
+9      Backup Battery voltage (VBKP)
+10     BCI: Battery charger current (ICHG)
+11     BCI: Battery charger voltage (VCHG)
+12     BCI: Main battery voltage (VBAT)
+13     Reserved
+14     Reserved
+15     VRUSB Supply/Speaker left/Speaker right polarization level
+
+
+The Sysfs nodes will represent the voltage in the units of mV,
+the temperature channel shows the converted temperature in
+degree Celsius. The Battery charging current channel represents
+battery charging current in mA.