devicetree: macb: Document clock properties

The macb driver uses the clock bindings. Document the required
properties, especially the driver specific clock-names.

Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Rob Herring <robh@kernel.org>

diff --git a/Documentation/devicetree/bindings/net/macb.txt b/Documentation/devicetree/bindings/net/macb.txt
index 4ff6504..70af2ec 100644 (file)
--- a/Documentation/devicetree/bindings/net/macb.txt
+++ b/Documentation/devicetree/bindings/net/macb.txt
@@ -10,6 +10,10 @@ Required properties:
 - interrupts: Should contain macb interrupt
 - phy-mode: String, operation mode of the PHY interface.
   Supported values are: "mii", "rmii", "gmii", "rgmii".
+- clock-names: Tuple listing input clock names.
+       Required elements: 'pclk', 'hclk'
+       Optional elements: 'tx_clk'
+- clocks: Phandles to input clocks.
 
 Optional properties:
 - local-mac-address: 6 bytes, mac address
@@ -22,4 +26,6 @@ Examples:
                interrupts = <21>;
                phy-mode = "rmii";
                local-mac-address = [3a 0e 03 04 05 06];
+               clock-names = "pclk", "hclk", "tx_clk";
+               clocks = <&clkc 30>, <&clkc 30>, <&clkc 13>;
        };