| Message ID | 6f071506877a9986d1f30902339993f922387a74.1433779081.git.cyrille.pitchen@atmel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Le 08/06/2015 18:07, Cyrille Pitchen a écrit : > - 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> Acked-by: Nicolas Ferre <nicolas.ferre@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 { >
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 {
- 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(-)