[PATCH 1/3] Device tree binding documentation for chromeos-firmware

[Martyn Welch]

This patch adds documentation for the chromeos-firmware binding.

Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Pawel Moll <pawel.moll@xxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Ian Campbell <ijc+devicetree@xxxxxxxxxxxxxx>
Cc: Kumar Gala <galak@xxxxxxxxxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
Signed-off-by: Martyn Welch <martyn.welch@xxxxxxxxxxxxxxx>
---
 .../devicetree/bindings/misc/chromeos-firmware.txt | 27 ++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/misc/chromeos-firmware.txt

diff --git a/Documentation/devicetree/bindings/misc/chromeos-firmware.txt b/Documentation/devicetree/bindings/misc/chromeos-firmware.txt
new file mode 100644
index 0000000..8240611
--- /dev/null
+++ b/Documentation/devicetree/bindings/misc/chromeos-firmware.txt
@@ -0,0 +1,27 @@
+Device-Tree bindings for chromeos-firmware.c.
+
+Required properties:
+	- compatible = "google,gpio-firmware";
+
+Each signal is represented as a sub-node of "chromeos_firmware":
+Subnode properties:
+
+	- gpios: OF device-tree gpio specification.
+
+Example nodes:
+
+	chromeos_firmware {
+		compatible = "google,gpio-firmware";
+
+		write-protect {
+			gpios = <&gpx3 0 GPIO_ACTIVE_LOW>;
+		};
+
+		developer-switch {
+			gpios = <&gpx1 3 GPIO_ACTIVE_HIGH>;
+		};
+
+		recovery-switch {
+			gpios = <&gpx0 7 GPIO_ACTIVE_LOW>;
+		};
+	};
-- 
2.1.4

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