Messages in this thread Patch in this message |  | | From | Cyrille Pitchen <> | Subject | [PATCH v2 2/3] spi: atmel: update DT bindings documentation | Date | Mon, 8 Jun 2015 18:07:43 +0200 |
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- add new property "atmel,fifo-size" - change "cs-gpios" to optional for SPI controller version >= 2.
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> --- Documentation/devicetree/bindings/spi/spi_atmel.txt | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/spi/spi_atmel.txt b/Documentation/devicetree/bindings/spi/spi_atmel.txt index 4f8184d..7ef7f6bc 100644 --- a/Documentation/devicetree/bindings/spi/spi_atmel.txt +++ b/Documentation/devicetree/bindings/spi/spi_atmel.txt @@ -4,11 +4,16 @@ Required properties: - compatible : should be "atmel,at91rm9200-spi". - reg: Address and length of the register set for the device - interrupts: Should contain spi interrupt -- cs-gpios: chipselects +- cs-gpios: chipselects (optional for SPI controller version >= 2 with the + Alternative Command Mode). - clock-names: tuple listing input clock names. Required elements: "spi_clk" - clocks: phandles to input clocks. +Optional properties: +- atmel,fifo-size: maximum number of data the RX and TX FIFOs can store for FIFO + capable SPI controllers. + Example: spi1: spi@fffcc000 { @@ -20,6 +25,7 @@ spi1: spi@fffcc000 { clocks = <&spi1_clk>; clock-names = "spi_clk"; cs-gpios = <&pioB 3 0>; + atmel,fifo-size = <32>; status = "okay"; mmc-slot@0 { -- 1.8.2.2
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