linux-kernel - [PATCH v3 5/6] Documentation: bindings: add documentation for ir-spi device driver

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Date:   Wed, 02 Nov 2016 19:40:09 +0900
From:   Andi Shyti <andi.shyti@...sung.com>
To:     Mauro Carvalho Chehab <mchehab@....samsung.com>,
        Sean Young <sean@...s.org>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Richard Purdie <rpurdie@...ys.net>,
        Jacek Anaszewski <j.anaszewski@...sung.com>
Cc:     linux-media@...r.kernel.org, devicetree@...r.kernel.org,
        linux-leds@...r.kernel.org, linux-kernel@...r.kernel.org,
        Andi Shyti <andi.shyti@...sung.com>,
        Andi Shyti <andi@...zian.org>
Subject: [PATCH v3 5/6] Documentation: bindings: add documentation for ir-spi
 device driver

Document the ir-spi driver's binding which is a IR led driven
through the SPI line.

Signed-off-by: Andi Shyti <andi.shyti@...sung.com>
---
 .../devicetree/bindings/leds/spi-ir-led.txt        | 29 ++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/leds/spi-ir-led.txt

diff --git a/Documentation/devicetree/bindings/leds/spi-ir-led.txt b/Documentation/devicetree/bindings/leds/spi-ir-led.txt
new file mode 100644
index 0000000..896b699
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/spi-ir-led.txt
@@ -0,0 +1,29 @@
+Device tree bindings for IR LED connected through SPI bus which is used as
+remote controller.
+
+The IR LED switch is connected to the MOSI line of the SPI device and the data
+are delivered thourgh that.
+
+Required properties:
+	- compatible: should be "ir-spi-led".
+
+Optional properties:
+	- duty-cycle: 8 bit balue that represents the percentage of one period
+	  in which the signal is active.  It can be 50, 60, 70, 75, 80 or 90.
+	- led-active-low: boolean value that specifies whether the output is
+	  negated with a NOT gate.
+	- power-supply: specifies the power source. It can either be a regulator
+	  or a gpio which enables a regulator, i.e. a regulator-fixed as
+	  described in
+	  Documentation/devicetree/bindings/regulator/fixed-regulator.txt
+
+Example:
+
+	irled@0 {
+		compatible = "ir-spi-led";
+		reg = <0x0>;
+		spi-max-frequency = <5000000>;
+		power-supply = <&vdd_led>;
+		led-active-low;
+		duty-cycle = /bits/ 8 <60>;
+	};
-- 
2.10.1