From: Matthias Kaehlcke <mka@chromium.org>
To: Lee Jones <lee.jones@linaro.org>,
Daniel Thompson <daniel.thompson@linaro.org>,
Jingoo Han <jingoohan1@gmail.com>,
Jacek Anaszewski <jacek.anaszewski@gmail.com>,
Pavel Machek <pavel@ucw.cz>, Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Thierry Reding <thierry.reding@gmail.com>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
Enric Balletbo i Serra <enric.balletbo@collabora.com>
Cc: dri-devel@lists.freedesktop.org, linux-leds@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-pwm@vger.kernel.org, linux-fbdev@vger.kernel.org,
Douglas Anderson <dianders@chromium.org>,
Brian Norris <briannorris@chromium.org>,
Matthias Kaehlcke <mka@chromium.org>
Subject: [PATCH 1/2] dt-bindings: pwm-backlight: Add 'max-brightness' property
Date: Mon, 10 Jun 2019 16:37:38 -0700 [thread overview]
Message-ID: <20190610233739.29477-1-mka@chromium.org> (raw)
Add an optional 'max-brightness' property, which is used to specify
the number of brightness levels (max-brightness + 1) when the node
has no 'brightness-levels' table.
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
---
.../devicetree/bindings/leds/backlight/pwm-backlight.txt | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/leds/backlight/pwm-backlight.txt b/Documentation/devicetree/bindings/leds/backlight/pwm-backlight.txt
index 64fa2fbd98c9..98f4ba626054 100644
--- a/Documentation/devicetree/bindings/leds/backlight/pwm-backlight.txt
+++ b/Documentation/devicetree/bindings/leds/backlight/pwm-backlight.txt
@@ -27,6 +27,9 @@ Optional properties:
resolution pwm duty cycle can be used without
having to list out every possible value in the
brightness-level array.
+ - max-brightness: Maximum brightness value. Used to specify the number of
+ brightness levels (max-brightness + 1) when the node
+ has no 'brightness-levels' table.
[0]: Documentation/devicetree/bindings/pwm/pwm.txt
[1]: Documentation/devicetree/bindings/gpio/gpio.txt
--
2.22.0.rc2.383.gf4fbbf30c2-goog
next reply other threads:[~2019-06-10 23:37 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-10 23:37 Matthias Kaehlcke [this message]
2019-06-10 23:37 ` [PATCH 2/2] backlight: pwm_bl: Get number of brightness levels for CIE 1931 from the device tree Matthias Kaehlcke
2019-06-11 10:18 ` Pavel Machek
2019-06-11 21:58 ` Matthias Kaehlcke
2019-06-11 15:33 ` Daniel Thompson
2019-06-11 17:01 ` Matthias Kaehlcke
2019-06-11 10:14 ` [PATCH 1/2] dt-bindings: pwm-backlight: Add 'max-brightness' property Pavel Machek
2019-06-11 10:28 ` Thierry Reding
2019-06-11 21:38 ` Matthias Kaehlcke
2019-06-11 20:02 ` Jacek Anaszewski
2019-06-11 22:11 ` Matthias Kaehlcke
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190610233739.29477-1-mka@chromium.org \
--to=mka@chromium.org \
--cc=b.zolnierkie@samsung.com \
--cc=briannorris@chromium.org \
--cc=daniel.thompson@linaro.org \
--cc=devicetree@vger.kernel.org \
--cc=dianders@chromium.org \
--cc=dri-devel@lists.freedesktop.org \
--cc=enric.balletbo@collabora.com \
--cc=jacek.anaszewski@gmail.com \
--cc=jingoohan1@gmail.com \
--cc=lee.jones@linaro.org \
--cc=linux-fbdev@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-leds@vger.kernel.org \
--cc=linux-pwm@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=pavel@ucw.cz \
--cc=robh+dt@kernel.org \
--cc=thierry.reding@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).