[PATCH v8 3/5] docs: ABI: Document LP5812 sysfs interfaces

[Nam Tran <trannamatk@gmail.com>]

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@gmail.com>
---
 .../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@gmail.com>
+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@gmail.com>
+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@gmail.com>
+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@gmail.com>
+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@gmail.com>
+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@gmail.com>
+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@gmail.com>
+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@gmail.com>
+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@gmail.com>
+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@gmail.com>
+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@gmail.com>
+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@gmail.com>
+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@gmail.com>
+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@gmail.com>
+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@gmail.com>
+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@gmail.com>
+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@gmail.com>
+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@gmail.com>
+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@gmail.com>
 L:	linux-kernel@vger.kernel.org
 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