[PATCH 4/5] ARM: dts: imx27-phytec-phycore-rdk: Add spidev node

Sascha Hauer s.hauer at pengutronix.de
Sat Jun 8 13:08:40 EDT 2013


On Sat, Jun 08, 2013 at 06:39:39PM +0400, Alexander Shiyan wrote:
> This patch adds spidev device for spi0.1 which is used on ZigBee
> PCM970 connector.  This change will help to use this connector in
> userspace.
> 
> Signed-off-by: Alexander Shiyan <shc_work at mail.ru>
> ---
>  arch/arm/boot/dts/imx27-phytec-phycore-rdk.dts | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/imx27-phytec-phycore-rdk.dts b/arch/arm/boot/dts/imx27-phytec-phycore-rdk.dts
> index e7ed978..b2dbcdd 100644
> --- a/arch/arm/boot/dts/imx27-phytec-phycore-rdk.dts
> +++ b/arch/arm/boot/dts/imx27-phytec-phycore-rdk.dts
> @@ -17,6 +17,12 @@
>  &cspi1 {
>  	fsl,spi-num-chipselects = <2>;
>  	cs-gpios = <&gpio4 28 0>, <&gpio4 27 0>;
> +
> +	zigbee: spidev at 1 {
> +		compatible = "rohm,dh2228fv";
> +		reg = <1>;
> +		spi-max-frequency = <0>;

Why specify a speed of 0 here? Also, is there really a dh2228fv
connected or is this just a hack to let the Linux spidev driver match?


Sascha

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