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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 v3 3/4] dt-bindings: backlight: Add led-backlight binding
Date: Wed, 10 Jul 2019 21:13:14 +0200	[thread overview]
Message-ID: <20190710191314.GC22995@amd> (raw)
In-Reply-To: <20190710123932.28244-4-jjhiblot@ti.com>

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On Wed 2019-07-10 14:39:31, Jean-Jacques Hiblot wrote:
> Add DT binding for led-backlight.
> 
> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
> ---
>  .../bindings/leds/backlight/led-backlight.txt | 28 +++++++++++++++++++
>  1 file changed, 28 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/leds/backlight/led-backlight.txt
> 
> diff --git a/Documentation/devicetree/bindings/leds/backlight/led-backlight.txt b/Documentation/devicetree/bindings/leds/backlight/led-backlight.txt
> new file mode 100644
> index 000000000000..0444eec8efe1
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/leds/backlight/led-backlight.txt
> @@ -0,0 +1,28 @@
> +led-backlight bindings
> +
> +This binding is used to describe a basic backlight device made of
> LEDs.

Ok.

> +It can also be used to describe a backlight device controlled by the output of
> +a LED driver.

? The LED driver should better be driving some LEDs...

> +Required properties:
> +  - compatible: "led-backlight"
> +  - leds: a list of LEDs
> +
> +Optional properties:
> +  - brightness-levels: Array of distinct brightness levels. The levels must be
> +                       in the range accepted by the underlying LED devices.
> +                       This is used to translate a backlight brightness level
> +                       into a LED brightness level. if not provided, the
> +                       identity mapping is used.

"If it is not"
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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  reply	other threads:[~2019-07-10 19:13 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-10 12:39 [PATCH v3 0/4] Add a generic driver for LED-based backlight Jean-Jacques Hiblot
2019-07-10 12:39 ` [PATCH v3 1/4] leds: Add of_led_get() and led_put() Jean-Jacques Hiblot
2019-07-10 19:09   ` Pavel Machek
2019-07-12 13:52     ` Jean-Jacques Hiblot
2019-07-10 12:39 ` [PATCH v3 2/4] leds: Add managed API to get a LED from a device driver Jean-Jacques Hiblot
2019-07-10 19:11   ` Pavel Machek
2019-07-10 12:39 ` [PATCH v3 3/4] dt-bindings: backlight: Add led-backlight binding Jean-Jacques Hiblot
2019-07-10 19:13   ` Pavel Machek [this message]
2019-07-12 13:57     ` Jean-Jacques Hiblot
2019-07-10 12:39 ` [PATCH v3 4/4] backlight: add led-backlight driver Jean-Jacques Hiblot
2019-07-10 19:16   ` Pavel Machek

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