linux-kernel - [PATCH 0/4] Add a multicolor LED driver for groups of monochromatic LEDs

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Date:   Wed, 15 Jun 2022 17:49:14 +0200
From:   Jean-Jacques Hiblot <jjhiblot@...phandler.com>
To:     <pavel@....cz>, <robh+dt@...nel.org>,
        <sven.schwermer@...ruptive-technologies.com>,
        <krzysztof.kozlowski+dt@...aro.org>
CC:     <johan+linaro@...nel.org>, <marijn.suijten@...ainline.org>,
        <bjorn.andersson@...aro.org>, <andy.shevchenko@...il.com>,
        <linux-leds@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Jean-Jacques Hiblot <jjhiblot@...phandler.com>
Subject: [PATCH 0/4] Add a multicolor LED driver for groups of monochromatic LEDs

Some HW design implement multicolor LEDs with several monochromatic LEDs.
Grouping the monochromatic LEDs allows to configure them in sync and use
the triggers.
The PWM multicolor LED driver implements such grouping but only for
PWM-based LEDs. As this feature is also desirable for the other types of
LEDs, this series implements it for any kind of LED device.

Jean-Jacques Hiblot (4):
  leds: class: simplify the implementation of devm_of_led_get()
  led: class: Add devm_fwnode_led_get() to get a LED from a firmware
    node
  dt-bindings: leds: Add binding for a multicolor group of LEDs
  leds: Add a multicolor LED driver to group monochromatic LEDs

 .../bindings/leds/leds-group-multicolor.yaml  |  94 ++++++++++
 drivers/leds/led-class.c                      |  56 ++++--
 drivers/leds/rgb/Kconfig                      |   7 +
 drivers/leds/rgb/Makefile                     |   1 +
 drivers/leds/rgb/leds-group-multicolor.c      | 177 ++++++++++++++++++
 include/linux/leds.h                          |   4 +
 6 files changed, 325 insertions(+), 14 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/leds/leds-group-multicolor.yaml
 create mode 100644 drivers/leds/rgb/leds-group-multicolor.c

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2.25.1