Thread (9 messages) 9 messages, 2 authors, 2015-02-09

[PATCH v8 1/3] i2c: iProc: define Broadcom iProc I2C binding

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From: rjui@broadcom.com (Ray Jui)
Date: 2015-02-07 01:27:18
Also in: linux-devicetree, linux-i2c, lkml
Subsystem: i2c subsystem host drivers, open firmware and flattened device tree bindings, the rest · Maintainers: Andi Shyti, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds

Revision v8 of 9 in this series; 2 review trailers.

Revisions (9)
  1. v1 [diff vs current]
  2. v2 [diff vs current]
  3. v3 [diff vs current]
  4. v4 [diff vs current]
  5. v5 [diff vs current]
  6. v6 [diff vs current]
  7. v7 [diff vs current]
  8. v8 current
  9. v9 [diff vs current]
Document the I2C device tree binding for Broadcom iProc family of
SoCs

Signed-off-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
Reviewed-by: Kevin Cernekee <cernekee@chromium.org>
---
 .../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 at 18008000 {
+		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 at 1a {
+			compatible = "wlf,wm8750";
+			reg = <0x1a>;
+		};
+	};
-- 
1.7.9.5
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