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@xxxxxxxxx> --- Changes in v8: - Move driver to drivers/auxdisplay/ instead of drivers/leds/. - Rename files from leds-lp5812.c/.h to lp5812.c/.h. - Move ti,lp5812.yaml binding to auxdisplay/ directory, and update the title and $id to match new path. - No functional changes to the binding itself (keep Reviewed-by). - Update commit messages and patch titles to reflect the move. - Link to v7: https://lore.kernel.org/linux-leds/20250422190121.46839-1-trannamatk@xxxxxxxxx/ 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@xxxxxxxxx/ 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@xxxxxxxxx/ 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@xxxxxxxxx/ --- Nam Tran (5): dt-bindings: auxdisplay: add TI LP5812 4×3 Matrix RGB LED Driver auxdisplay: add TI LP5812 4×3 Matrix RGB LED Driver docs: ABI: Document LP5812 sysfs interfaces docs: auxdisplay: document TI LP5812 RGB LED driver arm64: dts: Add LP5812 node for Raspberry Pi 4 Model B .../ABI/testing/sysfs-bus-i2c-devices-lp5812 | 144 + .../admin-guide/auxdisplay/index.rst | 3 +- .../admin-guide/auxdisplay/lp5812.rst | 79 + .../bindings/auxdisplay/ti,lp5812.yaml | 46 + MAINTAINERS | 12 + .../arm/boot/dts/broadcom/bcm2711-rpi-4-b.dts | 10 + drivers/auxdisplay/Kconfig | 17 + drivers/auxdisplay/Makefile | 1 + drivers/auxdisplay/lp5812.c | 2736 +++++++++++++++++ drivers/auxdisplay/lp5812.h | 348 +++ 10 files changed, 3395 insertions(+), 1 deletion(-) create mode 100644 Documentation/ABI/testing/sysfs-bus-i2c-devices-lp5812 create mode 100644 Documentation/admin-guide/auxdisplay/lp5812.rst create mode 100644 Documentation/devicetree/bindings/auxdisplay/ti,lp5812.yaml create mode 100644 drivers/auxdisplay/lp5812.c create mode 100644 drivers/auxdisplay/lp5812.h base-commit: f1a3944c860b0615d0513110d8cf62bb94adbb41 -- 2.25.1
