[PATCHv6] media: i2c/adp1653: Documentation for devicetree support for adp1653

[Pavel Machek]

Documentation for adp1653 binding.

---

> Please split this as Javier suggested. I'd think both could go through
> the media-tree unless someone objects.

Please apply.

> > +  - power-gpios: Reference to the GPIO that controls the power for the chip.
> 
> You're using power-gpios in documentation only.

Which is ok, because generic code adds "-gpios" itself.

> The spec refers to this by "EN". How about "en-gpios" instead? This
> definitely isn't about power, but about resetting the chip. It gets the
> power through another pin.

It controls power of the chip. Noone gets _power_ through gpios,
hopefully. Yes, I can rename it. "en-gpios" is too ugly to
live. Sebastian suggested "enable". Hope that's okay with you.

									Pavel

new file mode 100644
index 0000000..da9934a
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/adp1653.txt
@@ -0,0 +1,37 @@
+* Analog Devices ADP1653 flash LED driver
+
+Required Properties:
+
+  - compatible: Must contain be "adi,adp1653"
+
+  - reg: I2C slave address
+
+  - power-gpios: Reference to the GPIO that controls the power for the chip.
+
+There are two LED outputs available - flash and indicator. One LED is
+represented by one child node, nodes need to be named "flash" and "indicator".
+
+Required properties of the LED child node:
+- max-microamp : see Documentation/devicetree/bindings/leds/common.txt
+
+Required properties of the flash LED child node:
+
+- flash-max-microamp : see Documentation/devicetree/bindings/leds/common.txt
+- flash-timeout-us : see Documentation/devicetree/bindings/leds/common.txt
+
+Example:
+
+	adp1653: led-controller at 30 {
+		compatible = "adi,adp1653";
+		reg = <0x30>;
+		power-gpios = <&gpio3 24 GPIO_ACTIVE_HIGH>; /* 88 */
+
+		flash {
+			flash-timeout-us = <500000>;
+			flash-max-microamp = <320000>;
+			max-microamp = <50000>;
+		};
+		indicator {
+			max-microamp = <17500>;
+		};
+	};

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