[PATCH v3 0/2] Support for Texas Instruments TPS6131X flash LED driver

Matthias Fend
2025-04-23T07:48:53Z

The TPS61310/TPS61311 is a flash LED driver with I2C interface. Its power
stage is capable of supplying a maximum total current of roughly 1500mA.
The TPS6131x provides three constant-current sinks, capable of sinking up
to 2 × 400mA (LED1 and LED3) and 800mA (LED2) in flash mode. In torch mode
each sink (LED1, LED2, LED3) supports currents up to 175m

Signed-off-by: Matthias Fend <matthias.fend@emfend.at>
---
Changes in v3:
- Add comment for locking
- Drop handling based on CONFIG_V4L2_FLASH_LED_CLASS
- Stop if getting reset GPIO fails
- Optimize locks
- Fix type of num_channels (u32 -> int)
- Convert a remaining return sequence to dev_err_probe
- Link to v2: https://lore.kernel.org/r/20250318-leds-tps6131x-v2-0-bc09c7a50b2e@emfend.at

Changes in v2:
- Bindings: Extend device description
- Bindings: Drop unused address/size cells
- Bindings: Use fallback compatible
- Bindings: Corrected minimum current for 50mA steps
- Bindings: Drop node label
- Fix name of REGISTER4 INDC shift define
- Save device instead i2c_client in private data
- Add comment for mutex
- Use macro to convert from uA to mA
- Use defines to describe initial register values
- Add safety delay during reset sequence
- Use fixed value enum to set the mode
- Renamed some local variables
- Re-sorted local variables
- Replaced ifdefs for V4L2_FLASH_LED_CLASS
- Improved some error messages
- Link to v1: https://lore.kernel.org/r/20250228-leds-tps6131x-v1-0-d1071d90f9ea@emfend.at

---
Matthias Fend (2):
dt-bindings: leds: add Texas Instruments TPS6131x flash LED driver
leds: tps6131x: add support for Texas Instruments TPS6131X flash LED driver

.../devicetree/bindings/leds/ti,tps61310.yaml | 120 ++++
MAINTAINERS | 7 +
drivers/leds/flash/Kconfig | 11 +
drivers/leds/flash/Makefile | 1 +
drivers/leds/flash/leds-tps6131x.c | 798 +++++++++++++++++++++
5 files changed, 937 insertions(+)
---
base-commit: bc3372351d0c8b2726b7d4229b878342e3e6b0e8
change-id: 20250227-leds-tps6131x-a7437883e400

Best regards,
--
Matthias Fend <matthias.fend@emfend.at>