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From: Akinobu Mita <akinobu.mita@gmail.com>
To: linux-leds@vger.kernel.org, devicetree@vger.kernel.org
Cc: Akinobu Mita <akinobu.mita@gmail.com>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Bjorn Andersson <bjorn@kryo.se>,
	Tomi Valkeinen <tomi.valkeinen@ti.com>,
	Jean-Jacques Hiblot <jjhiblot@ti.com>,
	Jacek Anaszewski <jacek.anaszewski@gmail.com>,
	Pavel Machek <pavel@ucw.cz>, Dan Murphy <dmurphy@ti.com>
Subject: [PATCH 0/2] leds: add generic LED level meter driver
Date: Wed, 23 Oct 2019 00:06:50 +0900
Message-ID: <1571756812-19005-1-git-send-email-akinobu.mita@gmail.com> (raw)

This introduces a new LED driver that enables us to create a virtual LED
level meter device that consists of multiple LED devices by different
drivers.

Previously I developed the level meter feature for leds-gpio ("leds: gpio:
support multi-level brightness") [1].  Then I got a feedback from
Bjorn Andersson and made more generic new driver.  This driver is also
inspired by led-backlight driver patchset [2] and actually requires
devm_of_led_get() function provided by the patchset.

[1] https://lore.kernel.org/linux-leds/1570203299-4270-1-git-send-email-akinobu.mita@gmail.com/
[2] https://lore.kernel.org/linux-leds/20191009085127.22843-1-jjhiblot@ti.com/

Akinobu Mita (2):
  leds: add LED level meter driver
  leds: meter: add leds-meter binding

 .../devicetree/bindings/leds/leds-meter.yaml       |  42 +++++++
 drivers/leds/Kconfig                               |  10 ++
 drivers/leds/Makefile                              |   1 +
 drivers/leds/leds-meter.c                          | 134 +++++++++++++++++++++
 4 files changed, 187 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/leds/leds-meter.yaml
 create mode 100644 drivers/leds/leds-meter.c

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Bjorn Andersson <bjorn@kryo.se>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Jean-Jacques Hiblot <jjhiblot@ti.com>
Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Dan Murphy <dmurphy@ti.com>
-- 
2.7.4


             reply index

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-22 15:06 Akinobu Mita [this message]
2019-10-22 15:06 ` [PATCH 1/2] leds: add " Akinobu Mita
2019-10-22 15:06 ` [PATCH 2/2] leds: meter: add leds-meter binding Akinobu Mita
2019-10-23 12:34   ` Dan Murphy
2019-10-23 14:45     ` Akinobu Mita
2019-10-23 14:56   ` Rob Herring
2019-12-04 12:38     ` Pavel Machek

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