linux-kernel - [PATCH v3 1/3] i2c: iProc: define Broadcom iProc I2C binding

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Message-ID: <1418183832-24793-2-git-send-email-rjui@broadcom.com>
Date:	Tue, 9 Dec 2014 19:57:10 -0800
From:	Ray Jui <rjui@...adcom.com>
To:	Wolfram Sang <wsa@...-dreams.de>, Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	"Ian Campbell" <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Grant Likely <grant.likely@...aro.org>,
	Christian Daudt <bcm@...thebug.org>,
	Matt Porter <mporter@...aro.org>,
	Florian Fainelli <f.fainelli@...il.com>,
	Russell King <linux@....linux.org.uk>
CC:	Scott Branden <sbranden@...adcom.com>, <linux-i2c@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<bcm-kernel-feedback-list@...adcom.com>,
	<devicetree@...r.kernel.org>, "Ray Jui" <rjui@...adcom.com>
Subject: [PATCH v3 1/3] i2c: iProc: define Broadcom iProc I2C binding

Document the I2C device tree binding for Broadcom iProc family of
SoCs

Signed-off-by: Ray Jui <rjui@...adcom.com>
Reviewed-by: Scott Branden <sbranden@...adcom.com>
---
 .../devicetree/bindings/i2c/brcm,iproc-i2c.txt     |   37 ++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/i2c/brcm,iproc-i2c.txt

diff --git a/Documentation/devicetree/bindings/i2c/brcm,iproc-i2c.txt b/Documentation/devicetree/bindings/i2c/brcm,iproc-i2c.txt
new file mode 100644
index 0000000..81f982c
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/brcm,iproc-i2c.txt
@@ -0,0 +1,37 @@
+Broadcom iProc I2C controller
+
+Required properties:
+
+- compatible:
+    Must be "brcm,iproc-i2c"
+
+- reg:
+    Define the base and range of the I/O address space that contain the iProc
+    I2C controller registers
+
+- interrupts:
+    Should contain the I2C interrupt
+
+- clock-frequency:
+    This is the I2C bus clock. Need to be either 100000 or 400000
+
+- #address-cells:
+    Always 1 (for I2C addresses)
+
+- #size-cells:
+    Always 0
+
+Example:
+	i2c0: i2c@...08000 {
+		compatible = "brcm,iproc-i2c";
+		reg = <0x18008000 0x100>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		interrupts = <GIC_SPI 85 IRQ_TYPE_NONE>;
+		clock-frequency = <100000>;
+
+		codec: wm8750@1a {
+			compatible = "wlf,wm8750";
+			reg = <0x1a>;
+		};
+	};
-- 
1.7.9.5

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