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-rw-r--r--kernel/Documentation/devicetree/bindings/iio/light/apds9960.txt22
-rw-r--r--kernel/Documentation/devicetree/bindings/iio/light/us5182d.txt34
2 files changed, 56 insertions, 0 deletions
diff --git a/kernel/Documentation/devicetree/bindings/iio/light/apds9960.txt b/kernel/Documentation/devicetree/bindings/iio/light/apds9960.txt
new file mode 100644
index 000000000..174b709f1
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/iio/light/apds9960.txt
@@ -0,0 +1,22 @@
+* Avago APDS9960 gesture/RGB/ALS/proximity sensor
+
+http://www.avagotech.com/docs/AV02-4191EN
+
+Required properties:
+
+ - compatible: must be "avago,apds9960"
+ - reg: the I2c address of the sensor
+ - interrupt-parent: should be the phandle for the interrupt controller
+ - interrupts : the sole interrupt generated by the device
+
+ Refer to interrupt-controller/interrupts.txt for generic interrupt client
+ node bindings.
+
+Example:
+
+apds9960@39 {
+ compatible = "avago,apds9960";
+ reg = <0x39>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <16 1>;
+};
diff --git a/kernel/Documentation/devicetree/bindings/iio/light/us5182d.txt b/kernel/Documentation/devicetree/bindings/iio/light/us5182d.txt
new file mode 100644
index 000000000..6f0a53014
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/iio/light/us5182d.txt
@@ -0,0 +1,34 @@
+* UPISEMI us5182d I2C ALS and Proximity sensor
+
+Required properties:
+- compatible: must be "upisemi,usd5182"
+- reg: the I2C address of the device
+
+Optional properties:
+- upisemi,glass-coef: glass attenuation factor - compensation factor of
+ resolution 1000 for material transmittance.
+- upisemi,dark-ths: array of 8 elements containing 16-bit thresholds (adc
+ counts) corresponding to every scale.
+- upisemi,upper-dark-gain: 8-bit dark gain compensation factor(4 int and 4
+ fractional bits - Q4.4) applied when light > threshold
+- upisemi,lower-dark-gain: 8-bit dark gain compensation factor(4 int and 4
+ fractional bits - Q4.4) applied when light < threshold
+
+If the optional properties are not specified these factors will default to the
+values in the below example.
+The glass-coef defaults to no compensation for the covering material.
+The threshold array defaults to experimental values that work with US5182D
+sensor on evaluation board - roughly between 12-32 lux.
+There will be no dark-gain compensation by default when ALS > thresh
+(0 * dark-gain), and a 1.35 compensation factor when ALS < thresh.
+
+Example:
+
+ usd5182@39 {
+ compatible = "upisemi,usd5182";
+ reg = <0x39>;
+ upisemi,glass-coef = < 1000 >;
+ upisemi,dark-ths = /bits/ 16 <170 200 512 512 800 2000 4000 8000>;
+ upisemi,upper-dark-gain = /bits/ 8 <0x00>;
+ upisemi,lower-dark-gain = /bits/ 8 <0x16>;
+ };