linux-kernel - [PATCH anybus v1 2/4] dt-bindings: anybus-bridge: document devicetree binding.

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Message-ID: <20181024142456.10084-3-svendev@arcx.com>
Date:   Wed, 24 Oct 2018 10:24:54 -0400
From:   Sven Van Asbroeck <svendev@...x.com>
To:     <svendev@...x.com>, <lee.jones@...aro.org>, <robh+dt@...nel.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>,
        <andriy.shevchenko@...ux.intel.com>, <geert+renesas@...der.be>,
        <robin.murphy@....com>, <paul.gortmaker@...driver.com>,
        <sebastien.bourdelin@...oirfairelinux.com>, <icenowy@...c.io>,
        <yuanzhichang@...ilicon.com>, <stuyoder@...il.com>,
        <linus.walleij@...aro.org>, <maxime.ripard@...tlin.com>,
        <bogdan.purcareata@....com>
CC:     <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>
Subject: [PATCH anybus v1 2/4] dt-bindings: anybus-bridge: document devicetree binding.

This patch adds devicetree binding documentation for the
Arcx anybus bridge.

Signed-off-by: Sven Van Asbroeck <svendev@...x.com>
---
 .../bindings/mfd/arcx,anybus-bridge.txt       | 37 +++++++++++++++++++
 .../devicetree/bindings/vendor-prefixes.txt   |  1 +
 2 files changed, 38 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/arcx,anybus-bridge.txt

diff --git a/Documentation/devicetree/bindings/mfd/arcx,anybus-bridge.txt b/Documentation/devicetree/bindings/mfd/arcx,anybus-bridge.txt
new file mode 100644
index 000000000000..3c0399c4ed45
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/arcx,anybus-bridge.txt
@@ -0,0 +1,37 @@
+* Arcx anybus bridge
+
+This chip communicates with the SoC over the WEIM bus. It is
+expected that its Device Tree node is specified as the child of a node
+corresponding to the WEIM bus used for communication.
+
+Required properties:
+
+  - compatible : The following chip-specific string:
+        "arcx,anybus-bridge"
+
+  - reg :
+	weim memory area where the cpld registers are located,	followed by:
+	weim memory area of the first  anybus-s slot,		followed by:
+	weim memory area of the second anybus-s slot.
+
+  - enable-gpios : the gpio connected to the bridge's 'enable gpio'.
+
+  - pwms : the pwm connected to the bridge's 'pwm input'.
+
+  - irq-gpios : the gpios connected to the bridge's interrupt lines.
+	note that there is no need to provide the 'interrupts' property here.
+
+Example of usage:
+
+&weim {
+	bridge@0,0 {
+		compatible = "arcx,anybus-bridge";
+		reg = <0 0 0x100>, <0 0x400000 0x800>, <1 0x400000 0x800>;
+		fsl,weim-cs-timing = <0x024400b1 0x00001010 0x20081100
+				0x00000000 0xa0000240 0x00000000>;
+		enable-gpios = <&gpio5 2 GPIO_ACTIVE_HIGH>;
+		pwms = <&pwm3 0 571>;
+		irq-gpios = <&gpio1 1 GPIO_ACTIVE_HIGH>,
+					<&gpio1 5 GPIO_ACTIVE_HIGH>;
+	};
+};
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 2c3fc512e746..1bf07b20a8af 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -35,6 +35,7 @@ aptina	Aptina Imaging
 arasan	Arasan Chip Systems
 archermind ArcherMind Technology (Nanjing) Co., Ltd.
 arctic	Arctic Sand
+arcx	Arcx/Archronix Inc.
 aries	Aries Embedded GmbH
 arm	ARM Ltd.
 armadeus	ARMadeus Systems SARL
-- 
2.17.1