[RFC,6/9] dt-bindings: leds: Add support for the LM3633

Commit Message

Dan Murphy Sept. 26, 2018, 1:09 p.m. UTC

Add support for the TI LM3633 LED driver.
This device has 9 control banks 3 high voltage
LED channels and 6 low voltage LED channels.

Data sheet:
http://www.ti.com/lit/ds/symlink/lm3633.pdf

Signed-off-by: Dan Murphy <[e-mail]>
---
 .../devicetree/bindings/leds/leds-lm3633.txt  | 69 +++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/leds/leds-lm3633.txt

Patch

diff --git a/Documentation/devicetree/bindings/leds/leds-lm3633.txt b/Documentation/devicetree/bindings/leds/leds-lm3633.txt
new file mode 100644
index 000000000000..19571ad251ea
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-lm3633.txt
@@ -0,0 +1,69 @@ 
+* Texas Instruments - LM3633 Lighting Power Solution for Smartphone Handsets
+
+The LM3633 is a complete power source for
+backlight, keypad, and indicator LEDs in smartphone
+handsets.
+
+This device is suitable for display and keypad Lighting
+
+Required properties:
+	- compatible:
+		"ti,lm3633"
+	- reg :  I2C slave address
+	- #address-cells : 1
+	- #size-cells : 0
+
+Optional properties:
+	- enable-gpios : GPIO pin to enable/disable the device
+	- vled-supply : LED supply
+
+Required child properties:
+	- reg : 0 - HVLED is Controlled by bank A
+		1 - HVLED is Controlled by bank B
+		2,3,4 - LVLED1, 2 and 3 are Controlled by bank C, D and E
+		5,6,7 - LVLED4, 5 and 6 are Controlled by bank F, G and H
+	- led-sources : Indicates which LED string is associated to which
+			control bank.
+			0 - LED is not active in this control bank
+			1 - LED string is controlled by this control bank
+
+Optional child properties:
+	- label : see Documentation/devicetree/bindings/leds/common.txt
+	- linux,default-trigger :
+	   see Documentation/devicetree/bindings/leds/common.txt
+
+Example:
+
+led-controller@36 {
+	compatible = "ti,lm3633";
+	reg = <0x36>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
+	vled-supply = <&vbatt>;
+
+	led@0 {
+		reg = <0>;
+		led-sources = <1 0 1>;
+		label = "white:first_backlight_cluster";
+		linux,default-trigger = "backlight";
+	};
+
+	led@1 {
+		reg = <1>;
+		led-sources = <0 1 0>;
+		label = "white:second_backlight_cluster";
+		linux,default-trigger = "backlight";
+	};
+
+	led@2 {
+		reg = <2>;
+		led-sources = <0 1 0>;
+		label = "white:indicator1";
+	};
+
+}
+
+For more product information please see the link below:
+http://www.ti.com/lit/ds/symlink/lm3633.pdf