TPS65217PMIC(4)

📦 version 11.0, in nixpkgs unstable

💖 TPS65217PMIC(4) 💖

okay so bestie, welcome to the Kernel Interfaces Manual page for TPS65217PMIC(4) — yes, that's the title, and we are doing a full vibe check without dropping a single detail. 🫶✨

🌸 NAME 🌸

tps65217pmic — the Texas Instruments TPS65217 Power Management IC driver. That's the whole name section, and it ate. periodt. 💅

🦋 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. lowkey useful, highkey niche, and we love that for it. 🎀

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

okay and yes, the source list literally has DCDC1 twice at the end, so I'm listing it twice — exact copy, no fixing, no merging, fr fr. 🫶

⭐ SEE ALSO ⭐

  • envsys(4) — that's the reference, bestie. go read it if you want the envsys API lore. iykyk. 📖

💜 HISTORY 💜

The tps65217pmic device first appeared in NetBSD 7.0. iconic debut, no cap. 🌈

👑 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.

all names and credits kept exactly, because we respect the icons who built it. 🫶

💀 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. Some boards allow voltage measurement by connecting the power output to external sensor, or analog input of the MPU, but this is outside of the scope of this driver. 😭

Modifying voltage regulator parameters from user space was deliberately left unimplemented, as these parameters should only be set at the firmware or kernel level. Setting wrong parameters may result in permanent hardware damage.

⚠️ permanent hardware damage is not a vibe, bestie — do not treat voltage parameters like a random group-chat poll. 💔

The tps65217pmic driver offers a function that can be used to change the voltage from other kernel components (currently used by AM335x support code). 🛠️

😭 BUGS 😭

Battery and interrupt support is not implemented. that's it, that's the bug note — short, honest, and a little tragic. 💀

xoxo, your Debian bestie 💅 — source/version: Debian, date: June 28, 2018. stay powered, stay iconic, and don't touch voltage params unless you know what you're doing. 🔥👑

📦 where this page comes from