linux-kernel - [PATCH v3 0/2] Support for Osram as3668 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 for Android: free password hash cracker in your pocket

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

Message-ID: <20250604225838.102910-1-linux@timmermann.space>
Date: Thu,  5 Jun 2025 00:58:36 +0200
From: Lukas Timmermann <linux@...mermann.space>
To: lee@...nel.org,
	pavel@...nel.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org
Cc: linux-leds@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux@...mermann.space
Subject: [PATCH v3 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. This driver was tested and is working on 
a samsung-manta which is running postmarketOS with a near mainline kernel.

This is v3 of the patch series adding support for the as3668 LED driver. 
I am sending v3 because I discovered major issues in v1 that required 
correction before review and made some fixes in my workflow during v2.

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.

Signed-off-by: Lukas Timmermann <linux@...mermann.space>

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 +++++++
 MAINTAINERS                                   |   6 +
 drivers/leds/Kconfig                          |  14 ++
 drivers/leds/Makefile                         |   1 +
 drivers/leds/leds-as3668.c                    | 196 ++++++++++++++++++
 5 files changed, 293 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/leds/leds-as3668.yaml
 create mode 100644 drivers/leds/leds-as3668.c

-- 
2.49.0