linux-kernel - [PATCH 2/2] backlight: arcxcnn: devicetree bindings for ArticSand devices

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1478197768-3694-1-git-send-email-olimpiu@arcticsand.com>
Date:   Thu,  3 Nov 2016 14:29:28 -0400
From:   Olimpiu Dejeu <olimpiu@...ticsand.com>
To:     robh@...nel.org
Cc:     lee.jones@...aro.org, linux-kernel@...r.kernel.org,
        linux-fbdev@...r.kernel.org, devicetree@...r.kernel.org,
        jg1.han@...sung.com, Olimpiu Dejeu <olimpiu@...ticsand.com>
Subject: [PATCH 2/2] backlight: arcxcnn: devicetree bindings for ArticSand devices

Resubmition of arcxcnn backliught driver addressing the naming convention
 concerns raised by Rob H. Note that all the device tree properties are
 determined by the board design or IC EPROM settings and are not intended
 to be user adjustable.

Signed-off-by: Olimpiu Dejeu <olimpiu@...ticsand.com>

---
 .../bindings/leds/backlight/arcxcnn_bl.txt         | 31 ++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/leds/backlight/arcxcnn_bl.txt

diff --git a/Documentation/devicetree/bindings/leds/backlight/arcxcnn_bl.txt b/Documentation/devicetree/bindings/leds/backlight/arcxcnn_bl.txt
new file mode 100644
index 0000000..a7b6ff2
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/backlight/arcxcnn_bl.txt
@@ -0,0 +1,33 @@
+Binding for ArcticSand arc2c0608 LED driver
+
+Required properties:
+- compatible: should be "arc,arc2c0608"
+- reg: slave address
+
+Optional properties:
+- default-brightness: brightness value on boot, value from: 0-4095
+- label: The name of the backlight device
+			See Documentation/devicetree/bindings/leds/common.txt
+- led-sources: List of enabled channels from 0 to 5.
+			See Documentation/devicetree/bindings/leds/common.txt
+
+- arc,led-config-0: setting for register ILED_CONFIG_0
+- arc,led-config-1: setting for register ILED_CONFIG_1
+- arc,dim-freq: PWM mode frequence setting (bits [3:0] used)
+- arc,comp-config: setting for register CONFIG_COMP
+- arc,filter-config: setting for register FILTER_CONFIG
+- arc,trim-config: setting for register IMAXTUNE
+
+Note: Optional properties not specified will default to values in IC EPROM
+
+Example:
+
+arc2c0608@30 {
+	compatible = "arc,arc2c0608";
+	reg = <0x30>;
+	default-brightness = <500>;
+	label = "lcd-backlight";
+	linux,default-trigger = "backlight";
+	led-sources = <0 1 2 5>;
+};
+
-- 
2.7.4