From: Pavel Machek <pavel@ucw.cz>
To: Jean-Jacques Hiblot <jjhiblot@ti.com>
Cc: jacek.anaszewski@gmail.com, robh+dt@kernel.org,
mark.rutland@arm.com, lee.jones@linaro.org,
daniel.thompson@linaro.org, jingoohan1@gmail.com, dmurphy@ti.com,
linux-leds@vger.kernel.org, linux-kernel@vger.kernel.org,
dri-devel@lists.freedesktop.org, tomi.valkeinen@ti.com
Subject: Re: [PATCH 0/4] Add a generic driver for LED-based backlight
Date: Fri, 5 Jul 2019 12:14:34 +0200 [thread overview]
Message-ID: <20190705101434.fw5rpctnqt6dwg6e@devuan> (raw)
In-Reply-To: <20190701151423.30768-1-jjhiblot@ti.com>
On Mon 2019-07-01 17:14:19, Jean-Jacques Hiblot wrote:
> 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.
Other option would be to have backlight trigger. What are
advantages/disadvantages relative to that?
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2019-07-05 10:14 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-01 15:14 [PATCH 0/4] Add a generic driver for LED-based backlight Jean-Jacques Hiblot
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 ` Pavel Machek [this message]
2019-07-05 10:14 ` [PATCH 0/4] Add a generic driver for LED-based backlight 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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