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 [thread overview]
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
next prev parent reply other threads:[~2019-09-12 22:11 UTC|newest]
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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