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Message-Id: <20250405183246.198568-2-trannamatk@gmail.com>
Date: Sun,  6 Apr 2025 01:32:42 +0700
From: Nam Tran <trannamatk@...il.com>
To: pavel@...nel.org,
	lee@...nel.org,
	krzk+dt@...nel.org,
	robh@...nel.org,
	conor+dt@...nel.org,
	corbet@....net
Cc: devicetree@...r.kernel.org,
	linux-leds@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Nam Tran <trannamatk@...il.com>
Subject: [PATCH v4 1/5] dt-bindings: leds: add TI/National Semiconductor LP5812 LED Driver

The LP5812 is a 4×3 RGB LED driver with an autonomous animation engine
and time-cross-multiplexing (TCM) support for up to 12 LEDs.
It supports both analog (256 levels) and PWM (8-bit) dimming,
including exponential PWM for smooth brightness control.

Signed-off-by: Nam Tran <trannamatk@...il.com>
---
 .../devicetree/bindings/leds/ti,lp5812.yaml   | 122 ++++++++++++++++++
 MAINTAINERS                                   |   6 +
 2 files changed, 128 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/leds/ti,lp5812.yaml

diff --git a/Documentation/devicetree/bindings/leds/ti,lp5812.yaml b/Documentation/devicetree/bindings/leds/ti,lp5812.yaml
new file mode 100644
index 000000000000..e492386ff127
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/ti,lp5812.yaml
@@ -0,0 +1,122 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/ti,lp5812.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI/National Semiconductor LP5812 LED Driver
+
+maintainers:
+  - Nam Tran <trannamatk@...il.com>
+
+description: |
+  The LP5812 is an I2C LED Driver that can support LED matrix 4x3.
+  For more product information please see the link below:
+  https://www.ti.com/product/LP5812#tech-docs
+
+properties:
+  compatible:
+    const: ti,lp5812
+
+  reg:
+    maxItems: 1
+    description:
+      I2C slave address
+      lp5812/12- 0x1b
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 0
+
+patternProperties:
+  "^led@[0-9a-b]$":
+    type: object
+    $ref: common.yaml#
+    unevaluatedProperties: false
+
+    properties:
+      reg:
+        minimum: 0
+        maximum: 0xb
+
+      chan-name:
+        $ref: /schemas/types.yaml#/definitions/string
+        description: LED channel name
+
+    required:
+      - reg
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/leds/common.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        led-controller@1b {
+            compatible = "ti,lp5812";
+            reg = <0x1b>;
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            led@0 {
+                    reg = <0x0>;
+                    chan-name = "a0";
+            };
+            led@1 {
+                    reg = <0x1>;
+                    chan-name = "a1";
+            };
+            led@2 {
+                    reg = <0x2>;
+                    chan-name = "a2";
+            };
+            led@3 {
+                    reg = <0x3>;
+                    chan-name = "b0";
+            };
+            led@4 {
+                    reg = <0x4>;
+                    chan-name = "b1";
+            };
+            led@5 {
+                    reg = <0x5>;
+                    chan-name = "b2";
+            };
+            led@6 {
+                    reg = <0x6>;
+                    chan-name = "c0";
+            };
+            led@7 {
+                    reg = <0x7>;
+                    chan-name = "c1";
+            };
+            led@8 {
+                    reg = <0x8>;
+                    chan-name = "c2";
+            };
+            led@9 {
+                    reg = <0x9>;
+                    chan-name = "d0";
+            };
+            led@a {
+                    reg = <0xa>;
+                    chan-name = "d1";
+            };
+            led@b {
+                    reg = <0xb>;
+                    chan-name = "d2";
+            };
+        };
+    };
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 3b5fa8436987..afbc481d0311 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -23531,6 +23531,12 @@ S:	Supported
 F:	Documentation/devicetree/bindings/iio/dac/ti,dac7612.yaml
 F:	drivers/iio/dac/ti-dac7612.c
 
+TEXAS INSTRUMENTS' LP5812 LED DRIVER
+M:	Nam Tran <trannamatk@...il.com>
+L:	linux-leds@...r.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/leds/ti,lp5812.yaml
+
 TEXAS INSTRUMENTS' LB8864 LED BACKLIGHT DRIVER
 M:	Alexander Sverdlin <alexander.sverdlin@...mens.com>
 L:	linux-leds@...r.kernel.org

base-commit: 2df0c02dab829dd89360d98a8a1abaa026ef5798
-- 
2.25.1


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