linux-kernel - [PATCH v4 0/3] leds: pwm: Make automatic labels work

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Date:   Fri, 11 Sep 2020 17:40:01 +0200
From:   Alexander Dahl <post@...pocky.de>
To:     linux-leds@...r.kernel.org, devicetree@...r.kernel.org
Cc:     Jacek Anaszewski <jacek.anaszewski@...il.com>,
        Pavel Machek <pavel@....cz>, Dan Murphy <dmurphy@...com>,
        Rob Herring <robh+dt@...nel.org>, linux-kernel@...r.kernel.org,
        Peter Ujfalusi <peter.ujfalusi@...com>,
        Alexander Dahl <ada@...rsis.com>,
        Alexander Dahl <post@...pocky.de>
Subject: [PATCH v4 0/3] leds: pwm: Make automatic labels work

Hei hei,

for leds-gpio you can use the properties 'function' and 'color' in the
devicetree node and omit 'label', the label is constructed
automatically.  This is a common feature supposed to be working for all
LED drivers.  However it did not yet work for the 'leds-pwm' driver.

This series changes led-core a bit to add a non-ugly fix for the
leds-pwm driver and takes the opportunity to update the leds-pwm
dt-bindings accordingly.

v4 was tested on a at91 sama5d2 based platform with LEDs connected to
GPIO and PWM.

Greets
Alex

v4:
- added led-class patch handling fwnode passing differently (patch 1/3)
- adapted leds-pwm patch to new led-class (patch 2/3)
- contacted original author of leds-pwm dt binding on license issue
  (patch 3/3)

v3:
- series rebased on v5.9-rc4
- changed license of .yaml file to recommended one (patch 2/2)
- added Acked-by to both patches

v2:
- series rebased on v5.9-rc3
- added the dt-bindings update patch (2/2)

v1:
- based on v5.9-rc2
- backport on v5.4.59 tested and working

Alexander Dahl (3):
  leds: Require valid fwnode pointer for composing name
  leds: pwm: Allow automatic labels for DT based devices
  dt-bindings: leds: Convert pwm to yaml

 .../devicetree/bindings/leds/leds-pwm.txt     | 50 -----------
 .../devicetree/bindings/leds/leds-pwm.yaml    | 85 +++++++++++++++++++
 drivers/leds/led-class.c                      |  2 +-
 drivers/leds/leds-pwm.c                       |  3 +-
 4 files changed, 88 insertions(+), 52 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/leds/leds-pwm.txt
 create mode 100644 Documentation/devicetree/bindings/leds/leds-pwm.yaml

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2.20.1