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

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Message-Id: <1448997171-7064-2-git-send-email-martyn.welch@collabora.co.uk>
Date:	Tue,  1 Dec 2015 19:12:49 +0000
From:	Martyn Welch <martyn.welch@...labora.co.uk>
To:	Olof Johansson <olof@...om.net>
Cc:	linux-kernel@...r.kernel.org,
	Martyn Welch <martyn.welch@...labora.co.uk>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>, devicetree@...r.kernel.org
Subject: [PATCH 1/3] Device tree binding documentation for chromeos-firmware

This patch adds documentation for the chromeos-firmware binding.

Cc: Rob Herring <robh+dt@...nel.org>
Cc: Pawel Moll <pawel.moll@....com>
Cc: Mark Rutland <mark.rutland@....com>
Cc: Ian Campbell <ijc+devicetree@...lion.org.uk>
Cc: Kumar Gala <galak@...eaurora.org>
Cc: devicetree@...r.kernel.org
Signed-off-by: Martyn Welch <martyn.welch@...labora.co.uk>
---
 .../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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