diff options
Diffstat (limited to 'Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt b/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt index cbbe16ed3874..fa77f874e321 100644 --- a/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt +++ b/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt @@ -1,7 +1,7 @@ ARM Freescale DSPI controller Required properties: -- compatible : "fsl,vf610-dspi" +- compatible : "fsl,vf610-dspi", "fsl,ls1021a-v1.0-dspi", "fsl,ls2085a-dspi" - reg : Offset and length of the register set for the device - interrupts : Should contain SPI controller interrupt - clocks: from common clock binding: handle to dspi clock. @@ -16,6 +16,12 @@ Optional property: in big endian mode, otherwise in native mode(same with CPU), for more detail please see: Documentation/devicetree/bindings/regmap/regmap.txt. +Optional SPI slave node properties: +- fsl,spi-cs-sck-delay: a delay in nanoseconds between activating chip + select and the start of clock signal, at the start of a transfer. +- fsl,spi-sck-cs-delay: a delay in nanoseconds between stopping the clock + signal and deactivating chip select, at the end of a transfer. + Example: dspi0@4002c000 { @@ -43,6 +49,8 @@ dspi0@4002c000 { reg = <0>; linux,modalias = "m25p80"; modal = "at26df081a"; + fsl,spi-cs-sck-delay = <100>; + fsl,spi-sck-cs-delay = <50>; }; }; |
