linux-kernel - [PATCH 0/2] Support for Osram as3668 LED driver

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Message-ID: <20250530184219.78085-3-linux@timmermann.space>
Date: Fri, 30 May 2025 20:42:19 +0200
From: Lukas Timmermann <linux@...mermann.space>
To: lee@...nel.org,
	pavel@...nel.org
Cc: linux-leds@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Lukas Timmermann <linux@...mermann.space>
Subject: [PATCH 0/2] Support for Osram as3668 LED driver

This patch adds basic support for the as3668 driver IC via I2C interface. The IC is capable of driving four individual LEDs up to 25.5mA per channel. Hardware blinking would be theoretically possible, but this chip only supports a few set on/off-delays which makes using that feature unfeasable, therefore my driver doesn't offer that capability. It's intended applications is in mobile devices such as phones, tablets and cameras.

Please note: This is my first suggested patch to the kernel. checkpatch.pl runs without warnings or errors. I've read the docs in regards to the led subsystem, coding style and submission of patches, but I'm still a bit unsure about the general workflow. I will try my best.

Lukas Timmermann (2):
  leds: as3668: Driver for the ams Osram 4-channel i2c LED driver
  dt-bindings: leds: Add new as3668 support

 .../devicetree/bindings/leds/leds-as3668.yaml |  76 ++++++++
 drivers/leds/Kconfig                          |  10 +
 drivers/leds/Makefile                         |   1 +
 drivers/leds/leds-as3668.c                    | 178 ++++++++++++++++++
 4 files changed, 265 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/leds/leds-as3668.yaml
 create mode 100644 drivers/leds/leds-as3668.c

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2.49.0