linux-kernel - [PATCH anybus v3 5/6] dt-bindings: anybuss-host: document devicetree binding

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Date:   Sun,  4 Nov 2018 10:55:00 -0500
From:   thesven73@...il.com
To:     svendev@...x.com, robh+dt@...nel.org, linus.walleij@...aro.org
Cc:     lee.jones@...aro.org, mark.rutland@....com, afaerber@...e.de,
        treding@...dia.com, david@...hnology.com, noralf@...nnes.org,
        johan@...nel.org, monstr@...str.eu, michal.vokac@...ft.com,
        arnd@...db.de, gregkh@...uxfoundation.org, john.garry@...wei.com,
        geert+renesas@...der.be, robin.murphy@....com,
        paul.gortmaker@...driver.com,
        sebastien.bourdelin@...oirfairelinux.com, icenowy@...c.io,
        stuyoder@...il.com, maxime.ripard@...tlin.com,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: [PATCH anybus v3 5/6] dt-bindings: anybuss-host: document devicetree binding

From: Sven Van Asbroeck <svendev@...x.com>

This patch adds devicetree binding documentation for the
Arcx Anybus-S host.

Signed-off-by: Sven Van Asbroeck <svendev@...x.com>
---
 .../bindings/bus/arcx,anybuss-host.txt        | 36 +++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/bus/arcx,anybuss-host.txt

diff --git a/Documentation/devicetree/bindings/bus/arcx,anybuss-host.txt b/Documentation/devicetree/bindings/bus/arcx,anybuss-host.txt
new file mode 100644
index 000000000000..5c28e4e09bb2
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/arcx,anybuss-host.txt
@@ -0,0 +1,36 @@
+* Arcx Anybus-S host
+
+This host communicates with the SoC over a parallel bus. It is
+expected that its Device Tree node is specified as the child of a node
+corresponding to the parallel bus used for communication.
+
+Required properties:
+
+  - compatible : The following string:
+        "arcx,anybuss-host"
+
+  - reg : bus memory area where the Anybus-S host dpram is located.
+
+  - interrupts : interrupt connected to the Anybus-S host interrupt line.
+	Generic interrupt client node bindings are described in
+		interrupt-controller/interrupts.txt
+
+  - resets : the reset line associated with the Anybus-S host.
+
+Example of usage:
+
+This example places the Anybus-S host on top of the i.MX WEIM parallel bus, see:
+Documentation/devicetree/bindings/bus/imx-weim.txt
+
+&weim {
+	anybus-host@0 {
+		compatible = "arcx,anybuss-host";
+		reg = <0 0x400000 0x800>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <1 IRQ_TYPE_LEVEL_LOW>;
+		resets = <&anybus_bridge 0>;
+		/* fsl,weim-cs-timing is a i.MX WEIM bus specific property */
+		fsl,weim-cs-timing = <0x024400b1 0x00001010 0x20081100
+				0x00000000 0xa0000240 0x00000000>;
+	};
+};
-- 
2.17.1