From: Jean-Jacques Hiblot <jjhiblot@ti.com>
To: jacek.anaszewski@gmail.com, pavel@ucw.cz, robh+dt@kernel.org,
mark.rutland@arm.com, lee.jones@linaro.org,
daniel.thompson@linaro.org, jingoohan1@gmail.com
Cc: dmurphy@ti.com, linux-leds@vger.kernel.org,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
tomi.valkeinen@ti.com, Jean-Jacques Hiblot <jjhiblot@ti.com>
Subject: [PATCH 0/4] Add a generic driver for LED-based backlight
Date: Mon, 1 Jul 2019 17:14:19 +0200 [thread overview]
Message-ID: <20190701151423.30768-1-jjhiblot@ti.com> (raw)
This series aims to add a led-backlight driver, similar to pwm-backlight,
but using a LED class device underneath.
A few years ago (2015), Tomi Valkeinen posted a series implementing a
backlight driver on top of a LED device:
https://patchwork.kernel.org/patch/7293991/
https://patchwork.kernel.org/patch/7294001/
https://patchwork.kernel.org/patch/7293981/
The discussion stopped because Tomi lacked the time to work on it.
This series takes it from there and implements the binding that was
discussed in https://patchwork.kernel.org/patch/7293991/. In this new
binding the backlight device is a child of the LED controller instead of
being another platform device that uses a phandle to reference a LED.
Jean-Jacques Hiblot (2):
leds: of: create a child device if the LED node contains a
"compatible" string
devicetree: Update led binding
Tomi Valkeinen (2):
backlight: add led-backlight driver
devicetree: Add led-backlight binding
.../devicetree/bindings/leds/common.txt | 3 +
.../video/backlight/led-backlight.txt | 39 ++++
drivers/leds/led-class.c | 16 ++
drivers/video/backlight/Kconfig | 7 +
drivers/video/backlight/Makefile | 1 +
drivers/video/backlight/led_bl.c | 217 ++++++++++++++++++
include/linux/leds.h | 11 +
7 files changed, 294 insertions(+)
create mode 100644 Documentation/devicetree/bindings/video/backlight/led-backlight.txt
create mode 100644 drivers/video/backlight/led_bl.c
--
2.17.1
next reply other threads:[~2019-07-01 15:14 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-01 15:14 Jean-Jacques Hiblot [this message]
2019-07-01 15:14 ` [PATCH 1/4] leds: of: create a child device if the LED node contains a "compatible" string Jean-Jacques Hiblot
2019-07-01 15:14 ` [PATCH 2/4] devicetree: Update led binding Jean-Jacques Hiblot
2019-07-01 15:20 ` Dan Murphy
2019-07-01 15:14 ` [PATCH 3/4] backlight: add led-backlight driver Jean-Jacques Hiblot
2019-07-02 9:54 ` Daniel Thompson
2019-07-02 10:59 ` Jean-Jacques Hiblot
2019-07-02 13:04 ` Daniel Thompson
2019-07-02 15:17 ` Jean-Jacques Hiblot
2019-07-03 9:44 ` Daniel Thompson
2019-07-03 10:02 ` Jean-Jacques Hiblot
2019-07-05 10:08 ` Pavel Machek
2019-07-05 10:08 ` Pavel Machek
2019-07-05 10:33 ` Jean-Jacques Hiblot
2019-07-05 10:33 ` Jean-Jacques Hiblot
2019-07-01 15:14 ` [PATCH 4/4] devicetree: Add led-backlight binding Jean-Jacques Hiblot
2019-07-02 9:58 ` Daniel Thompson
2019-07-02 11:11 ` Jean-Jacques Hiblot
2019-07-05 10:11 ` Pavel Machek
2019-07-05 10:11 ` Pavel Machek
2019-07-05 10:14 ` [PATCH 0/4] Add a generic driver for LED-based backlight Pavel Machek
2019-07-05 10:14 ` Pavel Machek
2019-07-05 10:29 ` Daniel Thompson
2019-07-05 10:29 ` Daniel Thompson
2019-07-05 11:34 ` Jean-Jacques Hiblot
2019-07-05 11:34 ` Jean-Jacques Hiblot
2019-07-05 23:23 ` Sebastian Reichel
2019-07-05 23:23 ` Sebastian Reichel
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