Introduce the device tree bindings for the lm3697
led driver for backlighting and display.
Signed-off-by: Dan Murphy <dmurphy@xxxxxx>
---
.../devicetree/bindings/leds/leds-lm3697.txt | 64 +++++++++++++++++++
1 file changed, 64 insertions(+)
create mode 100644 Documentation/devicetree/bindings/leds/leds-lm3697.txt
diff --git a/Documentation/devicetree/bindings/leds/leds-lm3697.txt b/Documentation/devicetree/bindings/leds/leds-lm3697.txt
new file mode 100644
index 000000000000..7b8e490f1ea1
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+++ b/Documentation/devicetree/bindings/leds/leds-lm3697.txt
@@ -0,0 +1,64 @@
+* Texas Instruments - LM3697 Highly Efficient White LED Driver
+
+The LM3697 11-bit LED driver provides high-
+performance backlight dimming for 1, 2, or 3 series
+LED strings while delivering up to 90% efficiency.
+
+This device is suitable for Display and Keypad Lighting
+
+Required properties:
+ - compatible:
+ "ti,lm3967"
+ - reg : I2C slave address
+ - #address-cells : 1
+ - #size-cells : 0
+ - control-bank-cfg - : Indicates which sink is connected to which control bank
+ 0 - All HVLED outputs are controlled by bank A
+ 1 - HVLED1 is controlled bank B, HVLED2/3 are controlled by bank A
+ 2 - HVLED2 is controlled bank B, HVLED1/3 are controlled by bank A
+ 3 - HVLED1/2 are controlled by bank B, HVLED3 is controlled by bank A
+ 4 - HVLED3 is controlled by bank B, HVLED1/2 are controlled by bank A
+ 5 - HVLED1/3 is controlled by bank B, HVLED2 is controlled by bank A
+ 6 - (default) HVLED1 is controlled by bank A, HVLED2/3 are controlled by bank B
+ 7 - All HVLED outputs are controlled by bank B
+
+Optional properties:
+ - enable-gpios : gpio pin to enable/disable the device.
+ - vled-supply : LED supply
+
+Required child properties:
+ - reg : 0 - LED is Controlled by bank A
+ 1 - LED is Controlled by bank B
+
+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,lm3967";
+ reg = <0x36>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
+ vled-supply = <&vbatt>;
+ control-bank-cfg = <0>;
+
+ led@0 {
+ reg = <0>;
+ label = "white:first_backlight_cluster";
+ linux,default-trigger = "backlight";
+ };
+
+ led@1 {
+ reg = <1>;
+ label = "white:second_backlight_cluster";
+ linux,default-trigger = "frontlight";
+ };
+}
+
+For more product information please see the link below:
+http://www.ti.com/lit/ds/symlink/lm3697.pdf
--
2.17.0.582.gccdcbd54c
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