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Message-ID: <20190401173400.14238-3-dmurphy@ti.com>
Date: Mon, 1 Apr 2019 12:33:57 -0500
From: Dan Murphy <dmurphy@...com>
To: <robh+dt@...nel.org>, <jacek.anaszewski@...il.com>, <pavel@....cz>
CC: <marek.behun@....cz>, <linux-kernel@...r.kernel.org>,
<linux-leds@...r.kernel.org>, Dan Murphy <dmurphy@...com>
Subject: [RFC PATCH 2/5] dt: bindings: Add multicolor class dt bindings documention
Add DT bindings for the LEDs multicolor class framework.
Signed-off-by: Dan Murphy <dmurphy@...com>
---
.../bindings/leds/leds-class-multicolor.txt | 140 ++++++++++++++++++
1 file changed, 140 insertions(+)
create mode 100644 Documentation/devicetree/bindings/leds/leds-class-multicolor.txt
diff --git a/Documentation/devicetree/bindings/leds/leds-class-multicolor.txt b/Documentation/devicetree/bindings/leds/leds-class-multicolor.txt
new file mode 100644
index 000000000000..4b1a26104c79
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-class-multicolor.txt
@@ -0,0 +1,140 @@
+* Multicolor LED properties
+
+Multicolor LEDs can consist of a RGB, RGBW or a RGBA LED clusters. These devices
+can be grouped together and also provide a modeling mechanism so that the
+cluster LEDs can vary in hue and intensity to produce a wide range of colors.
+
+The nodes and properties defined in this document are unique to the multicolor
+LED class. Common LED nodes and properties are inherited from the common.txt
+within this documentation directory.
+
+Required LED Child properties:
+ - color : This is the color ID of the LED. Definitions can be found
+ in include/linux/leds/common.txt
+
+Optional LED Child properties:
+ - available-brightness-models : This is the phandle to the brightness-model
+ node(s) that this LED cluster can support.
+
+Required Brightness model properties
+ - led-brightness-model : This flag alerts the device driver and class
+ code that this node is a brightness model node
+ and to process the properties differently.
+
+Required Brightness model child properties
+ - model_name : This is the name of the model presented to the user. This
+ should be a color that the LED cluster can produce for
+ the device it is attached to.
+ - layout : This is the LED layout for the levels. This layout will
+ determine the color order of the levels. The layout and
+ level-x properties array should be the same size.
+ - level-x : These are the values for the LEDs to produce the color that
+ is defined. These values are placed in the array according
+ to the layout property.
+
+led-controller@30 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "ti,lp5024";
+ reg = <0x29>;
+
+ lp5024_model_yellow: brightness-models {
+ led-brightness-model;
+ model@0 {
+ model_name = "yellow";
+ layout = <LED_COLOR_ID_RED
+ LED_COLOR_ID_GREEN
+ LED_COLOR_ID_BLUE>;
+ level-1 = <255 227 40>;
+ level-2 = <255 240 136>;
+ level-3 = <255 247 196>;
+ };
+ };
+
+ lp5024_model_orange: brightness-models {
+ led-brightness-model;
+ model@1 {
+ model_name = "orange";
+ layout = <LED_COLOR_ID_RED
+ LED_COLOR_ID_GREEN
+ LED_COLOR_ID_BLUE>;
+ level-1 = <236 140 16>;
+ level-2 = <236 157 55>;
+ level-3 = <236 183 115>;
+ };
+ };
+
+ multi-led@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ label = "rgb:led_mod4";
+ available-brightness-models = <&lp5024_model_yellow>;
+
+ led@12 {
+ reg = <12>;
+ color = <LED_COLOR_ID_RED>;
+ };
+
+ led@13 {
+ reg = <13>;
+ color = <LED_COLOR_ID_GREEN>;
+ };
+
+ led@14 {
+ reg = <14>;
+ color = <LED_COLOR_ID_BLUE>;
+ };
+ };
+
+ /* Only support RGB no model defined */
+ multi-led@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ label = "rgb:led_mod1";
+
+ led@3 {
+ reg = <3>;
+ color = <LED_COLOR_ID_RED>;
+ };
+
+ led@4 {
+ reg = <4>;
+ color = <LED_COLOR_ID_GREEN>;
+ };
+
+ led@5 {
+ reg = <5>;
+ color = <LED_COLOR_ID_BLUE>;
+ };
+ };
+
+ multi-led@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ label = "rgb:banks";
+ reg = <2>;
+ ti,led-bank = <2 3 5>;
+ available-brightness-models = <&lp5024_model_orange>;
+
+ led@6 {
+ reg = <0x6>;
+ color = <LED_COLOR_ID_RED>;
+ led-sources = <6 9 15>;
+ };
+
+ led@7 {
+ reg = <0x7>;
+ color = <LED_COLOR_ID_GREEN>;
+ led-sources = <7 10 16>;
+ };
+
+ led@8 {
+ reg = <0x8>;
+ color = <LED_COLOR_ID_BLUE>;
+ led-sources = <8 11 17>;
+ };
+ };
+
+};
--
2.19.0
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