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