From: Chao Fu <[email protected]> Add bool value use-dma. The bool will determine whether DSPI use dma channel transfer data in a platform.
Add dmas and dma-names for describing dma channels of DSPI. Signed-off-by: Chao Fu <[email protected]> --- Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt b/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt index 5376de4..76a1039 100644 --- a/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt +++ b/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt @@ -11,6 +11,11 @@ Required properties: - spi-num-chipselects : the number of the chipselect signals. - bus-num : the slave chip chipselect signal number. - big-endian : if DSPI modudle is big endian, the bool will be set in node. +- use-dma: the bool decide if use dma method in DSPI transfering. +- dmas: List of DMA specifiers with the controller specific format + as described in the generic DMA client binding. A tx and rx + specifier is required for each chip select. +- dma-names: Should be named "tx" and "rx". Example: dspi0@4002c000 { @@ -26,6 +31,10 @@ dspi0@4002c000 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_dspi0_1>; big-endian; + use-dma; + dmas = <&edma0 0 12>, + <&edma0 0 13>; + dma-names = "rx", "tx"; status = "okay"; sflash: at26df081a@0 { -- 1.8.4 -- To unsubscribe from this list: send the line "unsubscribe linux-spi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
