linux-kernel - [PATCH 2/2] dt-bindings: mfd: Add bindings for ZII RAVE devices

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Date:   Mon, 10 Jul 2017 10:04:49 -0700
From:   Andrey Smirnov <andrew.smirnov@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Andrey Smirnov <andrew.smirnov@...il.com>, cphealy@...il.com,
        Lucas Stach <l.stach@...gutronix.de>,
        Nikita Yushchenko <nikita.yoush@...entembedded.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>, devicetree@...r.kernel.org
Subject: [PATCH 2/2] dt-bindings: mfd: Add bindings for ZII RAVE devices

Cc: cphealy@...il.com
Cc: Lucas Stach <l.stach@...gutronix.de>
Cc: Nikita Yushchenko <nikita.yoush@...entembedded.com>
Cc: Rob Herring <robh+dt@...nel.org>
Cc: Mark Rutland <mark.rutland@....com>
Cc: devicetree@...r.kernel.org
Signed-off-by: Andrey Smirnov <andrew.smirnov@...il.com>
---
 .../devicetree/bindings/mfd/zii,rave-sp.txt        | 40 ++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/zii,rave-sp.txt

diff --git a/Documentation/devicetree/bindings/mfd/zii,rave-sp.txt b/Documentation/devicetree/bindings/mfd/zii,rave-sp.txt
new file mode 100644
index 0000000..53192f9
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/zii,rave-sp.txt
@@ -0,0 +1,40 @@
+Zodiac Inflight Innovations RAVE Supervisory Processor
+
+RAVE Supervisory Processor communicates with SoC over UART and is
+presented to the kernel as a "serdev". It is expected that its
+device-tree node is specified as a child of a node corresponding to
+UART controller used for communication.
+
+Required parent device properties:
+
+ - compatible: Should be one of:
+	- "zii,rave-sp-niu"
+	- "zii,rave-sp-mezz"
+	- "zii,rave-sp-esb"
+	- "zii,rave-sp-rdu1"
+	- "zii,rave-sp-rdu2"
+
+ - current-speed: Should be set to baud rate SP device is using
+
+RAVE SP consists of the following sub-devices:
+
+Device				 Description
+------				 -----------
+rave-sp-wdt			: Watchdog
+rave-sp-nvmem			: Interface to onborad EEPROM
+rave-sp-backlight		: Display backlight
+rave-sp-hwmon			: Interface to onboard hardware sensors
+rave-sp-leds			: Interface to onboard LEDs
+rave-sp-input			: Interface to onboard power button
+
+Example of usage:
+
+	rdu {
+		compatible = "zii,rave-sp-rdu2";
+		current-speed = <1000000>;
+
+		watchdog {
+			compatible = "zii,rave-sp-watchdog";
+		};
+	};
+
-- 
2.9.4