The LP5812 is a 4x3 matrix RGB LED driver with autonomous animation engine control. The driver provides interfaces to configure LED modes manual/autonomous, set PWM/DC values, and manage autonomous animation engines. Signed-off-by: Nam Tran <trannamatk@xxxxxxxxx> --- .../ABI/testing/sysfs-bus-i2c-devices-lp5812 | 40 ++++++ .../ABI/testing/sysfs-class-led-lp5812 | 120 ++++++++++++++++++ MAINTAINERS | 2 + 3 files changed, 162 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-bus-i2c-devices-lp5812 create mode 100644 Documentation/ABI/testing/sysfs-class-led-lp5812 diff --git a/Documentation/ABI/testing/sysfs-bus-i2c-devices-lp5812 b/Documentation/ABI/testing/sysfs-bus-i2c-devices-lp5812 new file mode 100644 index 000000000000..a8b1d5c52a82 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-i2c-devices-lp5812 @@ -0,0 +1,40 @@ +What: /sys/bus/i2c/devices/.../lp5812_chip_setup/dev_config +Date: July 2025 +KernelVersion: 6.17 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + Configures drive mode and scan order. (WO) + Some valid values: tcmscan:4:0:1:2:3 (default), tcmscan:3:0:1:2, mixscan:2:2:0:3, mixscan:3:0:1:2:3 + +What: /sys/bus/i2c/devices/.../lp5812_chip_setup/device_command +Date: July 2025 +KernelVersion: 6.17 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + Issues device-level commands. (WO) + Valid values: "update", "start", "stop", "pause", "continue" + +What: /sys/bus/i2c/devices/.../lp5812_chip_setup/sw_reset +Date: July 2025 +KernelVersion: 6.17 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + Triggers a software reset of the device. (WO) + 1 - resets device + 0 - does not reset device + +What: /sys/bus/i2c/devices/.../lp5812_chip_setup/fault_clear +Date: July 2025 +KernelVersion: 6.17 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + Clears fault status. (WO) + 1 - clears fault status + 0 - does not clear fault status + +What: /sys/bus/i2c/devices/.../lp5812_chip_setup/tsd_config_status +Date: July 2025 +KernelVersion: 6.17 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + Report the current thermal shutdown config status. (RO) diff --git a/Documentation/ABI/testing/sysfs-class-led-lp5812 b/Documentation/ABI/testing/sysfs-class-led-lp5812 new file mode 100644 index 000000000000..a6cb49fb523f --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-led-lp5812 @@ -0,0 +1,120 @@ +What: /sys/class/leds/led_<id>/activate +Date: July 2025 +KernelVersion: 6.17 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + Activate or deactivate the specified LED channel. (WO) + 1 - Activate + 0 - Deactivate + +What: /sys/class/leds/led_<id>/mode +Date: July 2025 +KernelVersion: 6.17 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + Selects LED operation mode. (WO) + Valid values: "manual", "autonomous" + +What: /sys/class/leds/led_<id>/led_current +Date: July 2025 +KernelVersion: 6.17 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + DC current level. (WO) + Valid values: 0 - 255 + +What: /sys/class/leds/led_<id>/max_current +Date: July 2025 +KernelVersion: 6.17 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + Shows maximum DC current bit setting. (RO) + 0 (default) means the LED maximum current is set to 25.5 mA. + 1 means the LED maximum current is set to 51 mA. + +What: /sys/class/leds/led_<id>/pwm_dimming_scale +Date: July 2025 +KernelVersion: 6.17 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + PWM dimming scale type. (WO) + Valid values: "linear", "exponential" + +What: /sys/class/leds/led_<id>/pwm_phase_align +Date: July 2025 +KernelVersion: 6.17 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + Configures PWM phase alignment. (WO) + Valid values: "forward", "middle", "backward" + +What: /sys/class/leds/led_<id>/auto_time_pause_at_start +Date: July 2025 +KernelVersion: 6.17 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + Controls start pause time. (WO) + Valid values: 0 - 15 + +What: /sys/class/leds/led_<id>/auto_time_pause_at_stop +Date: July 2025 +KernelVersion: 6.17 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + Controls stop pause time. (WO) + Valid values: 0 - 15 + +What: /sys/class/leds/led_<id>/auto_playback_eau_number +Date: July 2025 +KernelVersion: 6.17 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + Active AEU number of led_<id> selection. (WO) + Valid values: 0 - 3 + 0 - only use AEU1 + 1 - use AEU1 and AEU2 + 2 - use AEU1, AEU2 and AEU3 + 3 - use AEU1, AEU2 and AEU3 (the same as 2) + +What: /sys/class/leds/led_<id>/auto_playback_time +Date: July 2025 +KernelVersion: 6.17 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + Animation pattern playback times of led_<id>. (WO) + Valid values: 0 - 15 + 0 - 14 means 0 - 14 times, 15 means infinite times + +What: /sys/class/leds/led_<id>/aeu_playback_time +Date: July 2025 +KernelVersion: 6.17 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + AEU pattern playback times of led_<id>. (WO) + Format: aeu<x>:<y> where x (1 - 3) indicates the AEU number, + y (0 - 3) indicates the number of playback times. + +What: /sys/class/leds/led_<id>/aeu_pwm_<pwm_id> +Date: July 2025 +KernelVersion: 6.17 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + AEU PWM duty cycle setting. (WO) + Format: aeu<x>:<y> where x (1 - 3) indicates the AEU number, + y (0 - 255) indicates pwm value. + +What: /sys/class/leds/led_<id>/aeu_slop_time_<st_id> +Date: July 2025 +KernelVersion: 6.17 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + AEU slop time setting. (WO) + Format: aeu<x>:<y> where x (1 - 3) indicates the AEU number, + y (0 - 15) indicates the slop time value. + +What: /sys/class/leds/led_<id>/lod_lsd +Date: July 2025 +KernelVersion: 6.17 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + 0 0 mean no lod and lsd fault detected, 1 1 mean lod and lsd fault detected (RO) diff --git a/MAINTAINERS b/MAINTAINERS index b4eb3265c800..cdba86f1768b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -24565,6 +24565,8 @@ TEXAS INSTRUMENTS' LP5812 RGB LED DRIVER M: Nam Tran <trannamatk@xxxxxxxxx> L: linux-leds@xxxxxxxxxxxxxxx S: Maintained +F: Documentation/ABI/testing/sysfs-bus-i2c-devices-lp5812 +F: Documentation/ABI/testing/sysfs-class-led-lp5812 F: Documentation/devicetree/bindings/leds/ti,lp5812.yaml F: drivers/leds/rgb/Kconfig F: drivers/leds/rgb/Makefile -- 2.25.1
