[PATCH/RFC v4 20/21] DT: Add documentation for the Skyworks AAT1290

[Jacek Anaszewski]

This patch adds device tree binding documentation for
1.5A Step-Up Current Regulator for Flash LEDs.

Signed-off-by: Jacek Anaszewski <j.anaszewski@xxxxxxxxxxx>
Acked-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Pawel Moll <pawel.moll@xxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Ian Campbell <ijc+devicetree@xxxxxxxxxxxxxx>
Cc: Kumar Gala <galak@xxxxxxxxxxxxxx>
---
 .../devicetree/bindings/leds/leds-aat1290.txt      |   17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/leds/leds-aat1290.txt

diff --git a/Documentation/devicetree/bindings/leds/leds-aat1290.txt b/Documentation/devicetree/bindings/leds/leds-aat1290.txt
new file mode 100644
index 0000000..9a9ad15
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-aat1290.txt
@@ -0,0 +1,17 @@
+* Skyworks Solutions, Inc. AAT1290 Current Regulator for Flash LEDs
+
+Required properties:
+
+- compatible : should be "skyworks,aat1290"
+- gpios : two gpio pins in order FLEN, EN/SET
+- skyworks,flash-timeout : maximum flash timeout in microseconds -
+			   it can be calculated using following formula:
+			   T = 8.82 * 10^9 * Ct
+
+Example:
+
+flash_led: flash-led {
+	compatible = "skyworks,aat1290";
+	gpios = <&gpj1 1 0>, <&gpj1 2 0>;
+	flash-timeout = <1940000>;
+}
-- 
1.7.9.5

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