From 05202872ca98f8ea61943a9b530417c5503b816f Mon Sep 17 00:00:00 2001
From: Alexander Shiyan <shc_work@mail.ru>
Date: Mon, 10 Feb 2014 22:17:47 +0400
Subject: [PATCH] serial: max310x: Add bindings documentation for the MAX310X
UARTs
This patch adds the devicetree documentation for the Maxim MAX310X UARTs.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
.../bindings/serial/maxim,max310x.txt | 36 +++++++++++++++++++
1 file changed, 36 insertions(+)
create mode 100644 Documentation/devicetree/bindings/serial/maxim,max310x.txt
diff --git a/Documentation/devicetree/bindings/serial/maxim,max310x.txt b/Documentation/devicetree/bindings/serial/maxim,max310x.txt
new file mode 100644
index 0000000000000..0daf780882f67
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/maxim,max310x.txt
@@ -0,0 +1,36 @@
+* Maxim MAX310X advanced Universal Asynchronous Receiver-Transmitter (UART)
+
+Required properties:
+- compatible: Should be one of the following:
+ - "maxim,max3107" for Maxim MAX3107,
+ - "maxim,max3108" for Maxim MAX3108,
+ - "maxim,max3109" for Maxim MAX3109,
+ - "maxim,max14830" for Maxim MAX14830.
+- reg: SPI chip select number.
+- interrupt-parent: The phandle for the interrupt controller that
+ services interrupts for this IC.
+- interrupts: Specifies the interrupt source of the parent interrupt
+ controller. The format of the interrupt specifier depends on the
+ parent interrupt controller.
+- clocks: phandle to the IC source clock.
+- clock-names: Should be "osc" if clock is an external crystal or
+ "xtal" if an external clock source is used.
+
+Optional properties:
+- gpio-controller: Marks the device node as a GPIO controller.
+- #gpio-cells: Should be two. The first cell is the GPIO number and
+ the second cell is used to specify the GPIO polarity:
+ 0 = active high,
+ 1 = active low.
+
+Example:
+ max14830: max14830@0 {
+ compatible = "maxim,max14830";
+ reg = <0>;
+ clocks = <&clk20m>;
+ clock-names = "osc";
+ interrupt-parent = <&gpio3>;
+ interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
--
2.30.2