Added bindings specification for bitbanged gpio driver for Dallas
one wire protocol
Signed-off-by: Eugen Hristev <eugen.hris...@microchip.com>
---
doc/device-tree-bindings/w1/w1-gpio.txt | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
create mode 040000 doc/device-tree-bindings/w1
create mode 100644 doc/device-tree-bindings/w1/w1-gpio.txt
diff --git a/doc/device-tree-bindings/w1/w1-gpio.txt
b/doc/device-tree-bindings/w1/w1-gpio.txt
new file mode 100644
index 0000000..b976d8c
--- /dev/null
+++ b/doc/device-tree-bindings/w1/w1-gpio.txt
@@ -0,0 +1,26 @@
+W1 gpio device binding - one wire protocol over bitbanged gpio
+=======================
+
+
+No child nodes are required in device tree. The driver will autodetect
+the devices and instantiate the driver for the child according to the detected
+family. This is done according to the discovery protocol in 1wire standard.
+
+Driver:
+- drivers/w1/w1-gpio.c
+
+Software w1 device-tree node properties:
+Required:
+* compatible = "w1-gpio";
+* gpios = <...>;
+ This is the gpio used for one wire protocol, using bitbanging
+
+Optional:
+* none
+
+Example:
+
+onewire_tm: onewire {
+ compatible = "w1-gpio";
+ gpios = <&pioA 32 0>;
+};
--
2.7.4
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