[PATCH v2 3/3] spi: xilinx: Update devicetree bindings for spi-xilinx

[PATCH v2 3/3] spi: xilinx: Update devicetree bindings for spi-xilinx

[Naga Sureshkumar Relli]

Update bindings for spi-xilinx.
as per spi-bus.txt rename num-ss-bits to num-cs.
and add fifo-size and bits-per-word properties.

Signed-off-by: Naga Sureshkumar Relli <nagasure-gjFFaj9aHVfQT0dZR+AlfA@public.gmane.org>
---
changes for v2
 - none
---
 Documentation/devicetree/bindings/spi/spi-xilinx.txt | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/spi/spi-xilinx.txt b/Documentation/devicetree/bindings/spi/spi-xilinx.txt
index c7b7856..539bbe9 100644
--- a/Documentation/devicetree/bindings/spi/spi-xilinx.txt
+++ b/Documentation/devicetree/bindings/spi/spi-xilinx.txt
@@ -7,9 +7,11 @@ Required properties:
 - interrupts		: Property with a value describing the interrupt
 			  number.
 - interrupt-parent	: Must be core interrupt controller
+- fifo-size		: Depth of TX/RX Fifos
 
 Optional properties:
-- xlnx,num-ss-bits	: Number of chip selects used.
+- num-cs		: Number of chip selects used.
+- bits-per-word		: Number of bits per word.
 
 Example:
 	axi_quad_spi@41e00000 {
@@ -17,6 +19,8 @@ Example:
 			interrupt-parent = <&intc>;
 			interrupts = <0 31 1>;
 			reg = <0x41e00000 0x10000>;
-			xlnx,num-ss-bits = <0x1>;
+			num-cs = <0x1>;
+			fifo-size = <256>;
+			bits-per-word = <8>;
 	};
 
-- 
2.1.1

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Re: [PATCH v2 3/3] spi: xilinx: Update devicetree bindings for spi-xilinx

[Mark Brown]

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On Mon, May 30, 2016 at 03:17:07PM +0530, Naga Sureshkumar Relli wrote:

> Update bindings for spi-xilinx.
> as per spi-bus.txt rename num-ss-bits to num-cs.
> and add fifo-size and bits-per-word properties.

This makes the new bindings backwards incompatible breaking existing
machine descriptions.  It's fine to add new options but the driver
should accept the old options.

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