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Sat, 05 Apr 2025 11:33:21 -0700 (PDT) From: Nam Tran To: pavel@kernel.org, lee@kernel.org, krzk+dt@kernel.org, robh@kernel.org, conor+dt@kernel.org, corbet@lwn.net Cc: devicetree@vger.kernel.org, linux-leds@vger.kernel.org, linux-kernel@vger.kernel.org, Nam Tran Subject: [PATCH v4 1/5] dt-bindings: leds: add TI/National Semiconductor LP5812 LED Driver Date: Sun, 6 Apr 2025 01:32:42 +0700 Message-Id: <20250405183246.198568-2-trannamatk@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20250405183246.198568-1-trannamatk@gmail.com> References: <20250405183246.198568-1-trannamatk@gmail.com> Precedence: bulk X-Mailing-List: linux-leds@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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 --- .../devicetree/bindings/leds/ti,lp5812.yaml | 122 ++++++++++++++++++ MAINTAINERS | 6 + 2 files changed, 128 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/ti,lp5812.yaml base-commit: 2df0c02dab829dd89360d98a8a1abaa026ef5798 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 + +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 + + 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 +L: linux-leds@vger.kernel.org +S: Maintained +F: Documentation/devicetree/bindings/leds/ti,lp5812.yaml + TEXAS INSTRUMENTS' LB8864 LED BACKLIGHT DRIVER M: Alexander Sverdlin L: linux-leds@vger.kernel.org