[PATCHv4 2/2] bindings: spi: Add clock entries for spi-xilinx

[Shubhrajyoti Datta <shubhrajyoti.datta-gjFFaj9aHVfQT0dZR+AlfA@public.gmane.org>]

Add clock description for spi-xilinx

Signed-off-by: Shubhrajyoti Datta <shubhraj-gjFFaj9aHVfQT0dZR+AlfA@public.gmane.org>
---
v3
Add a clock name
v4
Correct the name 
 .../devicetree/bindings/spi/spi-xilinx.txt         |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/Documentation/devicetree/bindings/spi/spi-xilinx.txt b/Documentation/devicetree/bindings/spi/spi-xilinx.txt
index c7b7856..07ec09a 100644
--- a/Documentation/devicetree/bindings/spi/spi-xilinx.txt
+++ b/Documentation/devicetree/bindings/spi/spi-xilinx.txt
@@ -7,6 +7,9 @@ Required properties:
 - interrupts		: Property with a value describing the interrupt
 			  number.
 - interrupt-parent	: Must be core interrupt controller
+- clocks: Input clock specifier. Refer to common clock bindings.
+- clock-names: tuple listing input clock names.
+	Required elements: "s_axi_aclk"
 
 Optional properties:
 - xlnx,num-ss-bits	: Number of chip selects used.
@@ -14,6 +17,8 @@ Optional properties:
 Example:
 	axi_quad_spi@41e00000 {
 			compatible = "xlnx,xps-spi-2.00.a";
+			clocks = <&clkc 15>;
+			clock-names = "spi_fclk";
 			interrupt-parent = <&intc>;
 			interrupts = <0 31 1>;
 			reg = <0x41e00000 0x10000>;
-- 
1.7.1

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