From: Alexander Shiyan <shc_work@mail.ru>
Date: Mon, 10 Feb 2014 18:17:47 +0000 (+0400)
Subject: serial: max310x: Add bindings documentation for the MAX310X UARTs
X-Git-Tag: firefly_0821_release~176^2~4192^2~54
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=05202872ca98f8ea61943a9b530417c5503b816f;p=firefly-linux-kernel-4.4.55.git

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>
---

diff --git a/Documentation/devicetree/bindings/serial/maxim,max310x.txt b/Documentation/devicetree/bindings/serial/maxim,max310x.txt
new file mode 100644
index 000000000000..0daf780882f6
--- /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>;
+	};