linux-kernel - [PATCH v2 2/3] leds: ktd2692: add device tree bindings for ktd2692

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Message-id: <1426581951-11869-3-git-send-email-ingi2.kim@samsung.com>
Date:	Tue, 17 Mar 2015 17:45:50 +0900
From:	Ingi Kim <ingi2.kim@...sung.com>
To:	cooloney@...il.com, rpurdie@...ys.net, robh+dt@...nel.org,
	pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org
Cc:	sakari.ailus@....fi, j.anaszewski@...sung.com,
	varkabhadram@...il.com, sw0312.kim@...sung.com,
	cw00.choi@...sung.com, jh80.chung@...sung.com,
	ideal.song@...sung.com, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-leds@...r.kernel.org,
	Ingi Kim <ingi2.kim@...sung.com>
Subject: [PATCH v2 2/3] leds: ktd2692: add device tree bindings for ktd2692

This patch adds the device tree bindings for ktd2692 flash LEDs.
Add optional properties 'flash-timeout-us' to control flash timeout
and 'vin-supply' for flash-led regulator

Signed-off-by: Ingi Kim <ingi2.kim@...sung.com>
---
 .../devicetree/bindings/leds/leds-ktd2692.txt      | 37 ++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/leds/leds-ktd2692.txt

diff --git a/Documentation/devicetree/bindings/leds/leds-ktd2692.txt b/Documentation/devicetree/bindings/leds/leds-ktd2692.txt
new file mode 100644
index 0000000..1b44225
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-ktd2692.txt
@@ -0,0 +1,37 @@
+* Kinetic Technologies - KTD2692 Flash LED Driver
+
+KTD2692 is the ideal power solution for high-power flash LEDs.
+It uses ExpressWire single-wire programming for maximum flexibility.
+
+The ExpressWire interface through CTRL pin can control LED on/off and
+enable/disable the IC, Movie/Flash mode current, Flash timeout,
+LVP(low voltage protection).
+
+Required properties:
+	- compatible: "kinetic,ktd2692"
+	- ctrl-gpio : gpio pin in order control ktd2692 flash led.
+		There is an internal 300kOhm pull-down resistor at this pin
+	- supply : "vin" LED supply
+
+Optional property:
+	- flash-timeout-us : Maximum flash timeout in microseconds.
+			flash timeout ranges from 0 to 1835000us and
+			default is 1049000us.
+
+Example:
+
+vbat: fixedregulator@0 {
+	compatible = "regulator-fixed";
+	regulator-name = "vbat-supply";
+	regulator-min-microvolt = <5000000>;
+	regulator-max-microvolt = <5000000>;
+	gpio = <>;
+	regulator-always-on;
+};
+
+flash-led {
+	compatible = "kinetic,ktd2692";
+	ctrl-gpio = <&gpc0 1 0>;
+	flash-timeout-us = <1835000>;
+	vin-supply = <&vbat>;
+};
-- 
2.0.5

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