bindings: i2c: use consistent naming for i2c binding descriptions

Filenames of devictree binding documentation seems to be arbitrary and
for me it is unneeded hazzle to find the corresponding documentation for
a specific driver.

Naming the description the same as the driver is a lot easier and makes
sense to me since the driver defines the binding it understands.

Also, remove a reference in one source to the binding documentation, since path
information easily gets stale.

Signed-off-by: Wolfram Sang <wolfram@the-dreams.de>
Cc: Rob Herring <robherring2@gmail.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

1 files changed, 33 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/i2c/i2c-pxa.txt b/Documentation/devicetree/bindings/i2c/i2c-pxa.txt
new file mode 100644
index 000000000000..12b78ac507e9
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-pxa.txt
@@ -0,0 +1,33 @@
+* Marvell MMP I2C controller
+
+Required properties :
+
+ - reg : Offset and length of the register set for the device
+ - compatible : should be "mrvl,mmp-twsi" where mmp is the name of a
+   compatible processor, e.g. pxa168, pxa910, mmp2, mmp3.
+   For the pxa2xx/pxa3xx, an additional node "mrvl,pxa-i2c" is required
+   as shown in the example below.
+
+Recommended properties :
+
+ - interrupts : the interrupt number
+ - interrupt-parent : the phandle for the interrupt controller that
+   services interrupts for this device. If the parent is the default
+   interrupt controller in device tree, it could be ignored.
+ - mrvl,i2c-polling : Disable interrupt of i2c controller. Polling
+   status register of i2c controller instead.
+ - mrvl,i2c-fast-mode : Enable fast mode of i2c controller.
+
+Examples:
+	twsi1: i2c@d4011000 {
+		compatible = "mrvl,mmp-twsi";
+		reg = <0xd4011000 0x1000>;
+		interrupts = <7>;
+		mrvl,i2c-fast-mode;
+	};
+	
+	twsi2: i2c@d4025000 {
+		compatible = "mrvl,mmp-twsi";
+		reg = <0xd4025000 0x1000>;
+		interrupts = <58>;
+	};