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Message-ID: <20190411193848.23140-7-dmurphy@ti.com>
Date: Thu, 11 Apr 2019 14:38:47 -0500
From: Dan Murphy <dmurphy@...com>
To: <robh+dt@...nel.org>, <jacek.anaszewski@...il.com>, <pavel@....cz>,
<marek.behun@....cz>, <rdunlap@...radead.org>
CC: <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-leds@...r.kernel.org>, Dan Murphy <dmurphy@...com>
Subject: [PATCH v2 6/7] dt: bindings: lp50xx: Introduce the lp50xx family of RGB drivers
Introduce the bindings for the Texas Instruments LP5036, LP5030, LP5024 and the LP5018
RGB LED device driver. The LP5036/3024/18 can control RGB LEDs individually
or as part of a control bank group. These devices have the ability
to adjust the mixing control for the RGB LEDs to obtain different colors
independent of the overall brightness of the LED grouping.
Datasheet:
http://www.ti.com/lit/ds/symlink/lp5024.pdf
http://www.ti.com/lit/ds/symlink/lp5036.pdf
Signed-off-by: Dan Murphy <dmurphy@...com>
---
.../devicetree/bindings/leds/leds-lp50xx.txt | 142 ++++++++++++++++++
1 file changed, 142 insertions(+)
create mode 100644 Documentation/devicetree/bindings/leds/leds-lp50xx.txt
diff --git a/Documentation/devicetree/bindings/leds/leds-lp50xx.txt b/Documentation/devicetree/bindings/leds/leds-lp50xx.txt
new file mode 100644
index 000000000000..48ea7f164ce6
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-lp50xx.txt
@@ -0,0 +1,142 @@
+* Texas Instruments - LP5018/24/30/36 RGB LED driver
+
+The LP50XX is multi-channel, I2C RGB LED Drivers that can group RGB LEDs into
+a LED group or control them individually.
+
+The difference in these RGB LED drivers is the number of supported RGB modules.
+
+Required parent properties:
+ - compatible:
+ "ti,lp5018"
+ "ti,lp5024"
+ "ti,lp5030"
+ "ti,lp5036"
+ - reg : I2C slave address
+ lp5018/24 - 0x28
+ lp5030/36 - 0x30
+ - #address-cells : 1
+ - #size-cells : 0
+
+Optional parent properties:
+ - enable-gpios : gpio pin to enable/disable the device.
+ - vled-supply : LED supply
+
+Required child properties:
+ - #address-cells : 1
+ - #size-cells : 0
+ - reg : This is the LED module number.
+ - color : see Documentation/devicetree/bindings/leds/common.txt
+ - function : see Documentation/devicetree/bindings/leds/common.txt
+
+Required child properties only is LED modules will be banked:
+ - ti,led-bank : This property denotes the LED module numbers that will
+ be controlled as a single RGB cluster. Each LED module
+ number will be controlled by a single LED class instance.
+ There can only be one instance of the ti,led-bank
+ property for each device node.
+
+Required grandchildren properties:
+ - reg : A single entry denoting the LED module that controls
+ the RGB cluster.
+ - color : see Documentation/devicetree/bindings/leds/leds-multicolor.txt
+ - led-sources : see Documentation/devicetree/bindings/leds/common.txt
+
+The LED outputs associated with the LED modules are defined in Table 1 of the
+corresponding data sheets.
+
+LP5018 - 6 Total RGB cluster LED outputs 0-5
+LP5024 - 8 Total RGB cluster LED outputs 0-7
+LP5030 - 10 Total RGB cluster LED outputs 0-9
+LP5036 - 12 Total RGB cluster LED outputs 0-11
+
+Optional child properties:
+ - label : see Documentation/devicetree/bindings/leds/common.txt
+ - linux,default-trigger :
+ see Documentation/devicetree/bindings/leds/common.txt
+
+Examples:
+led-controller@29 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "ti,lp5024";
+ reg = <0x29>;
+ enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
+ vled-supply = <&vmmcsd_fixed>;
+
+ multi-led@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ color = <LED_COLOR_ID_MULTI>;
+ function = LED_FUNCTION_STANDBY;
+ ti,led-bank = <2 3 5>;
+
+ 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>;
+ };
+ };
+
+ multi-led@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ color = <LED_COLOR_ID_MULTI>;
+ function = LED_FUNCTION_STATUS;
+
+ 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@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+ color = <LED_COLOR_ID_MULTI>;
+ function = LED_FUNCTION_ACTIVITY;
+
+ 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>;
+ };
+ };
+};
+
+For more product information please see the link below:
+http://www.ti.com/lit/ds/symlink/lp5024.pdf
+http://www.ti.com/lit/ds/symlink/lp5036.pdf
--
2.21.0.5.gaeb582a983
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