diff options
Diffstat (limited to 'Documentation/powerpc/dts-bindings/fsl/spi.txt')
| -rw-r--r-- | Documentation/powerpc/dts-bindings/fsl/spi.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/powerpc/dts-bindings/fsl/spi.txt b/Documentation/powerpc/dts-bindings/fsl/spi.txt index e7d9a34..80510c0 100644 --- a/Documentation/powerpc/dts-bindings/fsl/spi.txt +++ b/Documentation/powerpc/dts-bindings/fsl/spi.txt @@ -13,6 +13,11 @@ Required properties: - interrupt-parent : the phandle for the interrupt controller that services interrupts for this device. +Optional properties: +- gpios : specifies the gpio pins to be used for chipselects. + The gpios will be referred to as reg = <index> in the SPI child nodes. + If unspecified, a single SPI device without a chip select can be used. + Example: spi@4c0 { cell-index = <0>; @@ -21,4 +26,6 @@ Example: interrupts = <82 0>; interrupt-parent = <700>; mode = "cpu"; + gpios = <&gpio 18 1 // device reg=<0> + &gpio 19 1>; // device reg=<1> }; |