This allows to select exponential brightness mode instead of the default
linear mode.
Signed-off-by: Guido Günther <agx@xxxxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
---
Documentation/devicetree/bindings/leds/leds-lm3692x.txt | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/leds/leds-lm3692x.txt b/Documentation/devicetree/bindings/leds/leds-lm3692x.txt
index 501468aa4d38..b8939fdd19d6 100644
--- a/Documentation/devicetree/bindings/leds/leds-lm3692x.txt
+++ b/Documentation/devicetree/bindings/leds/leds-lm3692x.txt
@@ -18,6 +18,8 @@ Required properties:
Optional properties:
- enable-gpios : gpio pin to enable/disable the device.
- vled-supply : LED supply
+ - ti,brightness-mapping-exponential: Whether to use exponential
+ brightness mapping
- ti,ovp-microvolt: Overvoltage protection in
micro-volt, can be 17000000, 21000000, 25000000 or
29000000. If ti,ovp-microvolt is not specified it
@@ -51,6 +53,7 @@ led-controller@36 {
enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
vled-supply = <&vbatt>;
ti,ovp-microvolt = <29000000>;
+ ti,brightness-mapping-exponential;
led@0 {
reg = <0>;
--
2.23.0
