[PATCH v2 0/2] iio: proximity: add driver for ST VL53L1X ToF sensor

[Siratul Islam]

This series adds support for the STMicroelectronics VL53L1X
Time-of-Flight ranging sensor.

The VL53L1X is a ToF laser-ranging sensor with I2C interface,
capable of measuring distances up to 4 meters. The driver
supports both interrupt-driven and polled operation.

Tested on Raspberry Pi 5 with a VL53L1X breakout board.

---
Changes in v2:
- Skip software reset in chip_init when xshut GPIO is available, since the device was already hardware-reset during power-on.
- Rename "reset" GPIO to "xshut" to match the datasheet pin name and updated DT binding accordingly.
- Make vdd-supply required in DT binding.
- Use reg_sequence arrays and regmap_multi_reg_write() for distance mode configuration.
- Switch to a hardirq handler with iio_trigger_poll() and IRQF_NO_THREAD instead of a threaded handler.
- Drop IRQF_TRIGGER_FALLING fallback. Leave trigger type to firmware/DT.
- Use iio_validate_own_trigger() instead of a custom validate_trigger, drop trig pointer from driver data.
- Switch usleep_range() to fsleep() throughout and add comments for sleep values.
- Don't fail probe on unknown model ID, just log with dev_info().
- Split stop_ranging cleanup into its own devm action, separate from power_off.
- Add missing includes: device.h, bitfield.h, completion.h, mod_devicetable.h.
- Use FIELD_GET() for range status checks.
- Move configure_irq() closer to probe(), use dev_err_probe() for its error paths.
- Fix buffer ops symmetry: postdisable -> predisable.
- Drop reg_format_endian from regmap config.
- Various alignment and formatting fixes.

Link to v1: https://lore.kernel.org/linux-iio/20260303090253.42076-1-email@xxxxxxxx

Siratul Islam (2):
  dt-bindings: iio: proximity: add ST VL53L1X ToF sensor
  iio: proximity: add driver for ST VL53L1X ToF sensor

 .../bindings/iio/proximity/st,vl53l1x.yaml    |  50 +
 MAINTAINERS                                   |   7 +
 drivers/iio/proximity/Kconfig                 |  14 +
 drivers/iio/proximity/Makefile                |   1 +
 drivers/iio/proximity/vl53l1x-i2c.c           | 871 ++++++++++++++++++
 5 files changed, 943 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/proximity/st,vl53l1x.yaml
 create mode 100644 drivers/iio/proximity/vl53l1x-i2c.c

--
2.53.0