On Tue, Feb 16, 2010 at 11:39 AM, Ernst Schwab <[email protected]> wrote:
> From: Ernst Schwab <[email protected]>
>
> Added devicetree binding documentation for gpios used as chipselect. The
> code to evaluate these is already present in spi_mpc8xxx.c.
>
> Signed-off-by: Ernst Schwab <[email protected]>
Merged, thanks.
> ---
> diff -upr a/Documentation/powerpc/dts-bindings/fsl/spi.txt
> b/Documentation/powerpc/dts-bindings/fsl/spi.txt
> --- 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:
> ...@4c0 {
> cell-index = <0>;
> @@ -21,4 +26,6 @@ Example:
> interrupts = <82 0>;
> interrupt-parent = <700>;
> mode = "cpu";
> + gpios = <&gpio 18 1 // device reg=<0>, low-active
> + &gpio 19 1>; // device reg=<1>, low-active
> };
>
>
>
--
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.
------------------------------------------------------------------------------
SOLARIS 10 is the OS for Data Centers - provides features such as DTrace,
Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW
http://p.sf.net/sfu/solaris-dev2dev
_______________________________________________
spi-devel-general mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/spi-devel-general
