Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / i2c / brcm,iproc-i2c.txt

diff --git a/kernel/Documentation/devicetree/bindings/i2c/brcm,iproc-i2c.txt b/kernel/Documentation/devicetree/bindings/i2c/brcm,iproc-i2c.txt
new file mode 100644 (file)
index 0000000..81f982c
--- /dev/null
+++ b/kernel/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@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@1a {
+                       compatible = "wlf,wm8750";
+                       reg = <0x1a>;
+               };
+       };