The LP5812 is a 4 × 3 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 | 144 ++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 145 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-bus-i2c-devices-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..04689663a643 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-i2c-devices-lp5812 @@ -0,0 +1,144 @@ +What: /sys/bus/i2c/devices/.../lp5812_chip_setup/device_enable +Date: May 2025 +KernelVersion: 6.16 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + Enables or disables the LP5812 device. (RW) + 0 - Disable + 1 - Enable + +What: /sys/bus/i2c/devices/.../lp5812_chip_setup/dev_config +Date: May 2025 +KernelVersion: 6.16 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + Configures drive mode and scan order. (RW) + 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: May 2025 +KernelVersion: 6.16 +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: May 2025 +KernelVersion: 6.16 +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: May 2025 +KernelVersion: 6.16 +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: May 2025 +KernelVersion: 6.16 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + Report the current thermal shutdown config status. (RO) + +What: /sys/bus/i2c/devices/.../led_<id>/activate +Date: May 2025 +KernelVersion: 6.16 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + Activate or deactivate the specified LED channel. (RW) + 1 - Activate + 0 - Deactivate + +What: /sys/bus/i2c/devices/.../led_<id>/mode +Date: May 2025 +KernelVersion: 6.16 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + Selects LED operation mode. (RW) + Valid values: "manual", "autonomous" + +What: /sys/bus/i2c/devices/.../led_<id>/manual_dc +Date: May 2025 +KernelVersion: 6.16 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + DC current level in manual mode. (RW) + Valid values: 0 - 255 + +What: /sys/bus/i2c/devices/.../led_<id>/manual_pwm +Date: May 2025 +KernelVersion: 6.16 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + PWM duty cycle in manual mode. (RW) + Valid values: 0 - 255 + +What: /sys/bus/i2c/devices/.../led_<id>/autonomous_dc +Date: May 2025 +KernelVersion: 6.16 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + DC current level used in autonomous mode. (RW) + Valid values: 0 - 255 + +What: /sys/bus/i2c/devices/.../led_<id>/autonomous_dc +Date: May 2025 +KernelVersion: 6.16 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + DC current level used in autonomous mode. (RW) + Valid values: 0 - 255 + +What: /sys/bus/i2c/devices/.../led_<id>/pwm_dimming_scale +Date: May 2025 +KernelVersion: 6.16 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + PWM dimming scale type. (RW) + Valid values: "linear", "exponential" + +What: /sys/bus/i2c/devices/.../led_<id>/pwm_phase_align +Date: May 2025 +KernelVersion: 6.16 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + Configures PWM phase alignment. (RW) + Valid values: "forward", "middle", "backward" + +What: /sys/bus/i2c/devices/.../led_<id>/autonomous_animation +Date: May 2025 +KernelVersion: 6.16 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + Controls AEU configuration and playback. (RW) + Format: (aeu number):(start pause time):(stop pause time):(playback time) + with aeu number 1, 2, 3; playback time 0 - 15 + +What: /sys/bus/i2c/devices/.../led_<id>/aep_status +Date: May 2025 +KernelVersion: 6.16 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + Shows current animation pattern status, value from 0 to 7. (RO) + +What: /sys/bus/i2c/devices/.../led_<id>/auto_pwm_val +Date: May 2025 +KernelVersion: 6.16 +Contact: Nam Tran <trannamatk@xxxxxxxxx> +Description: + Shows the pwm value in autonomous mode when pause the animation, value from 0 to 255. (RO) + +What: /sys/bus/i2c/devices/.../led_<id>/lod_lsd +Date: May 2025 +KernelVersion: 6.16 +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 091373b01dc2..5d8ee0801c69 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -24020,6 +24020,7 @@ TEXAS INSTRUMENTS' LP5812 4X3 MATRIX LED DRIVER M: Nam Tran <trannamatk@xxxxxxxxx> L: linux-kernel@xxxxxxxxxxxxxxx S: Maintained +F: Documentation/ABI/testing/sysfs-bus-i2c-devices-lp5812 F: Documentation/devicetree/bindings/auxdisplay/ti,lp5812.yaml F: drivers/auxdisplay/Kconfig F: drivers/auxdisplay/Makefile -- 2.25.1
