TPS65217PMIC(4) | Device Drivers Manual | TPS65217PMIC(4)

# NAME

tps65217pmic — Texas Instruments TPS65217 Power Management IC driver

# SYNOPSIS

tps65217pmic0 at iic? addr 0x24

# DESCRIPTION

The tps65217pmic driver provides minimal support for the TPS65217 chip and allows reporting regulated voltages through the envsys(4) API.
The TPS65217 consists of low-dropout regulators (LDO) and step-down converters with integrated switching FETs (DCDC):

- LDO1: 1.0V - 3.3V
- LDO2: 0.9V - 3.3V
- LDO3: 1.5V - 3.3V
- LDO4: 1.5V - 3.3V
- DCDC1: 0.9V - 1.8V
- DCDC2: 0.9V - 3.3V
- DCDC1: 0.9V - 1.5V

# SEE ALSO

envsys(4)

# HISTORY

The tps65217pmic device first appeared in NetBSD 7.0.

# AUTHORS

The tps65217pmic driver was written by Radoslaw Kujawa <radoslaw.kujawa@gmail.com>. Voltage change callback for AM335x was added by Manuel Bouyer. White LED (backlight) support was added by KIYOHARA Takashi.

# CAVEATS

The driver can only report current voltage regulator settings. It can not measure the real voltage, as the TPS65217 chip lacks hardware to do that.
Modifying voltage regulator parameters from user space was deliberately left unimplemented, as these parameters should only be set at the firmware level. Setting wrong parameters may result in permanent hardware damage.

# BUGS

Battery and interrupt support is not implemented.

April 29, 2013 | NetBSD 8.1