linux-kernel - [PATCH v8 1/5] dt-bindings: auxdisplay: add TI LP5812 4×3 Matrix RGB LED Driver

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250427082447.138359-2-trannamatk@gmail.com>
Date: Sun, 27 Apr 2025 15:24:43 +0700
From: Nam Tran <trannamatk@...il.com>
To: andy@...nel.org
Cc: geert@...ux-m68k.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	christophe.jaillet@...adoo.fr,
	corbet@....net,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-doc@...r.kernel.org,
	florian.fainelli@...adcom.com,
	bcm-kernel-feedback-list@...adcom.com,
	linux-rpi-kernel@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org,
	Nam Tran <trannamatk@...il.com>,
	Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v8 1/5] dt-bindings: auxdisplay: add TI LP5812 4×3 Matrix RGB 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.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Signed-off-by: Nam Tran <trannamatk@...il.com>
---
 .../bindings/auxdisplay/ti,lp5812.yaml        | 46 +++++++++++++++++++
 MAINTAINERS                                   |  6 +++
 2 files changed, 52 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/auxdisplay/ti,lp5812.yaml

diff --git a/Documentation/devicetree/bindings/auxdisplay/ti,lp5812.yaml b/Documentation/devicetree/bindings/auxdisplay/ti,lp5812.yaml
new file mode 100644
index 000000000000..fb94a6336e16
--- /dev/null
+++ b/Documentation/devicetree/bindings/auxdisplay/ti,lp5812.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/auxdisplay/ti,lp5812.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI LP5812 4×3 Matrix RGB LED Driver with Autonomous Control
+
+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
+
+  vcc-supply:
+    description: Regulator providing power to the 'VCC' pin.
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        led-controller@1b {
+            compatible = "ti,lp5812";
+            reg = <0x1b>;
+            vcc-supply = <&vdd_3v3_reg>;
+        };
+    };
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 7940ddd91196..241c5441e239 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -24016,6 +24016,12 @@ S:	Supported
 F:	Documentation/devicetree/bindings/iio/dac/ti,dac7612.yaml
 F:	drivers/iio/dac/ti-dac7612.c
 
+TEXAS INSTRUMENTS' LP5812 4X3 MATRIX LED DRIVER
+M:	Nam Tran <trannamatk@...il.com>
+L:	linux-kernel@...r.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/auxdisplay/ti,lp5812.yaml
+
 TEXAS INSTRUMENTS' LB8864 LED BACKLIGHT DRIVER
 M:	Alexander Sverdlin <alexander.sverdlin@...mens.com>
 L:	linux-leds@...r.kernel.org
-- 
2.25.1