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[v7,0/5] leds: add new LED driver for TI LP5812

Message ID 20250422190121.46839-1-trannamatk@gmail.com
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Series leds: add new LED driver for TI LP5812 | expand

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Nam Tran April 22, 2025, 7:01 p.m. UTC 
This patch series adds support for the TI/National Semiconductor LP5812
4x3 matrix RGB LED driver. The driver supports features such as autonomous
animation and time-cross-multiplexing (TCM) for dynamic LED effects.

Signed-off-by: Nam Tran <trannamatk@gmail.com>
---
Changes in v7:
- Mark `chip_leds_map` as const.
- Use consistent `ret` initialization.
- Simplify the function `set_mix_sel_led()`.
- Refactor `dev_config_show()` and `led_auto_animation_show()` to avoid temp buffer, malloc/free.
- Simplify the code and ensure consistent use of mutex lock/unlock in show/store functions.
- Remove `total_leds` and `total_aeu`.
- Link to v6: https://lore.kernel.org/linux-leds/20250419184333.56617-1-trannamatk@gmail.com/

Changes in v6:
- Add `vcc-supply` property to describe the LP5812 power supply.
- Remove `chan-name` property and entire LED subnodes, as they are not needed.
- Update LP5812 LED driver node to Raspberry Pi 4 B Device Tree, based on updated binding.
- Link to v5: https://lore.kernel.org/linux-leds/20250414145742.35713-1-trannamatk@gmail.com/

Changes in v5:
- Rebase on v6.15-rc2
- Removed unused functions (lp5812_dump_regs, lp5812_update_bit).
- Address Krzysztof's review comments
- Link to v4: https://lore.kernel.org/linux-leds/20250405183246.198568-1-trannamatk@gmail.com/
---

Nam Tran (5):
  dt-bindings: leds: add TI/National Semiconductor LP5812 LED Driver
  leds: add TI/National Semiconductor LP5812 LED Driver
  docs: ABI: Document LP5812 LED sysfs interfaces
  docs: leds: Document TI LP5812 LED driver
  arm64: dts: Add LP5812 LED node for Raspberry Pi 4 Model B

 .../ABI/testing/sysfs-bus-i2c-devices-lp5812  |  144 +
 .../devicetree/bindings/leds/ti,lp5812.yaml   |   46 +
 Documentation/leds/leds-lp5812.rst            |   79 +
 MAINTAINERS                                   |   12 +
 .../arm/boot/dts/broadcom/bcm2711-rpi-4-b.dts |   10 +
 drivers/leds/Kconfig                          |   16 +
 drivers/leds/Makefile                         |    1 +
 drivers/leds/leds-lp5812.c                    | 2736 +++++++++++++++++
 drivers/leds/leds-lp5812.h                    |  348 +++
 9 files changed, 3392 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-bus-i2c-devices-lp5812
 create mode 100644 Documentation/devicetree/bindings/leds/ti,lp5812.yaml
 create mode 100644 Documentation/leds/leds-lp5812.rst
 create mode 100644 drivers/leds/leds-lp5812.c
 create mode 100644 drivers/leds/leds-lp5812.h


base-commit: a33b5a08cbbdd7aadff95f40cbb45ab86841679e