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From: Oleh Kravchenko <oleg@kaa.org.ua>
To: devicetree@vger.kernel.org, linux-leds@vger.kernel.org,
	jacek.anaszewski@gmail.com, pavel@ucw.cz
Cc: Oleh Kravchenko <oleg@kaa.org.ua>
Subject: [PATCH v8 1/2] dt-bindings: Add docs for EL15203000
Date: Fri, 13 Sep 2019 01:11:14 +0300
Message-ID: <20190912221115.23595-2-oleg@kaa.org.ua> (raw)
In-Reply-To: <20190912221115.23595-1-oleg@kaa.org.ua>

Add documentation and example for dt-bindings EL15203000.
LED board (aka RED LED board) from Crane Merchandising Systems.

Signed-off-by: Oleh Kravchenko <oleg@kaa.org.ua>
---
 .../bindings/leds/leds-el15203000.txt         | 53 +++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/leds/leds-el15203000.txt

diff --git a/Documentation/devicetree/bindings/leds/leds-el15203000.txt b/Documentation/devicetree/bindings/leds/leds-el15203000.txt
new file mode 100644
index 000000000000..d74b492d28b2
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-el15203000.txt
@@ -0,0 +1,53 @@
+Crane Merchandising System - el15203000 LED driver
+--------------------------------------------------
+
+This LED Board (aka RED LEDs board) is widely used in
+coffee vending machines produced by Crane Merchandising Systems.
+
+Required properties:
+- compatible : "crane,el15203000"
+
+Property rules described in
+Documentation/devicetree/bindings/spi/spi-controller.yaml is apply.
+In particular, "reg" and "spi-max-frequency" properties must be given.
+50KHz is very well tested value for spi-max-frequency.
+
+Optional LED sub-node properties:
+- function:
+	see Documentation/devicetree/bindings/leds/common.txt
+- color:
+	see Documentation/devicetree/bindings/leds/common.txt
+
+Example
+-------
+
+#include <dt-bindings/leds/common.h>
+
+led-controller@0 {
+	compatible = "crane,el15203000";
+	reg = <0>;
+	spi-max-frequency = <50000>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	/* water pipe */
+	led@50 {
+		reg = <0x50>;
+		function = "pipe";
+		color = <LED_COLOR_ID_RED>;
+	};
+
+	/* screen frame */
+	led@53 {
+		reg = <0x53>;
+		function = "screen";
+		color = <LED_COLOR_ID_RED>;
+	};
+
+	/* vending area */
+	led@56 {
+		reg = <0x56>;
+		function = "vend";
+		color = <LED_COLOR_ID_RED>;
+	};
+};
-- 
2.21.0


  reply index

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-12 22:11 v7 EL15203000 Oleh Kravchenko
2019-09-12 22:11 ` Oleh Kravchenko [this message]
2019-09-13 13:40   ` [PATCH v8 1/2] dt-bindings: Add docs for EL15203000 Dan Murphy
2019-09-12 22:11 ` [PATCH v8 2/2] leds: add LED driver for EL15203000 board Oleh Kravchenko
2019-09-13 13:42   ` Dan Murphy
2019-09-13 13:36 ` v7 EL15203000 Dan Murphy

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