[PATCH v1 2/2] dt: bindings: pca9532: add description of pwm and psc settings

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These properties allow users to configure the PCA9532 blink rates.

Signed-off-by: Markus Moll <mmoll@xxxxxxxxxxxxxxxxxxxx>
---
 .../devicetree/bindings/leds/leds-pca9532.txt          | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/devicetree/bindings/leds/leds-pca9532.txt b/Documentation/devicetree/bindings/leds/leds-pca9532.txt
index f769c52e364..3aa05eca9df 100644
--- a/Documentation/devicetree/bindings/leds/leds-pca9532.txt
+++ b/Documentation/devicetree/bindings/leds/leds-pca9532.txt
@@ -11,6 +11,14 @@ Required properties:
 		"nxp,pca9533"
 	- reg -  I2C slave address
 
+Optional properties:
+	- nxp,pwm: array of two 8-bit values specifying the blink duty cycle
+	  fractions of each pwm (default <0 0>)
+	  The duty cycle is pwm/256.
+	- nxp,psc: array of two 8-bit values specifying the blink period of
+	  each pwm (default <0 0>)
+	  The period is (psc+1)/152 seconds.
+
 Each led is represented as a sub-node of the nxp,pca9530.
 
 Optional sub-node properties:
@@ -26,6 +34,8 @@ Example:
   leds: pca9530@60 {
     compatible = "nxp,pca9530";
     reg = <0x60>;
+    nxp,pwm = /bits/ 8 <128 128>; // 50% duty cycle
+    nxp,psc = /bits/ 8 <151 37>; // 1Hz and 4Hz, respectively
 
     red-power {
       label = "pca:red:power";
-- 
2.25.1



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