linux-kernel - [PATCH v1 0/2] leds: add new LED driver for TI LP5812

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Message-Id: <20250225170601.21334-1-trannamatk@gmail.com>
Date: Wed, 26 Feb 2025 00:05:59 +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
Cc: devicetree@...r.kernel.org,
	linux-leds@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Nam Tran <trannamatk@...il.com>
Subject: [PATCH v1 0/2] leds: add new LED driver for TI LP5812

From: Nam Tran <trannamatk@...il.com>
To: Pavel Machek <pavel@...nel.org>, Lee Jones <lee@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Rob Herring <robh@...nel.org>, Conor Dooley <conor+dt@...nel.org>
Cc: linux-leds@...r.kernel.org, linux-kernel@...r.kernel.org, devicetree@...r.kernel.org

This patch series adds support for the Texas Instruments LP5812 LED driver.
Patch 1 adds the Device Tree (DT) bindings documentation.
Patch 2 introduces the core driver implementation.

The LP5812 is an I2C-controlled LED driver capable of driving up to 4 LEDs with independent brightness control and pattern programming.
This driver provides support through the Linux LED framework and includes device tree bindings for proper integration.

This driver has been tested on Raspberry Pi 4 B using kernel version 6.14.0.

I kindly request feedback from the community to ensure that this driver adheres to the Linux LED subsystem standards.

Thank you for your consideration.

Best regards,
Nam

---

Changes in v2:
- Renamed DT bindings file from `leds-lp5812.yaml` to `ti,lp5812.yaml`.
- Added LP5812 device tree node to `bcm2711-rpi-4b.dts` for Raspberry Pi 4B.
- Updated core driver implementation to fix build errors in kernel version 6.14.0-rc4. (The v1 patch was only compatible with kernel version 6.1.93)

Signed-off-by: Nam Tran <trannamatk@...il.com>