Re: [PATCH v3 3/6] dt-bindings: bus: Add documentation for the Technologic Systems NBUS

From: Rob Herring
Date: Fri May 12 2017 - 11:17:18 EST


On Fri, May 05, 2017 at 03:32:56PM -0400, Sebastien Bourdelin wrote:
> Add binding documentation for the Technologic Systems NBUS that is used
> to interface with peripherals in the FPGA of the TS-4600 SoM.
>
> Signed-off-by: Sebastien Bourdelin <sebastien.bourdelin@xxxxxxxxxxxxxxxxxxxx>
> ---
> Changes v2 -> v3:
> - rebase on master
> - fix typo (suggested by Rob Herring)
>
> Changes v1 -> v2:
> - rebase on master
> - remove the simple-bus compatibility as the root node will now
> populate child nodes (suggested by Rob Herring)
> - use the ts vendor prefix for gpios (suggested by Rob Herring)
> ---
> Documentation/devicetree/bindings/bus/ts-nbus.txt | 50 +++++++++++++++++++++++
> 1 file changed, 50 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/bus/ts-nbus.txt
>
> diff --git a/Documentation/devicetree/bindings/bus/ts-nbus.txt b/Documentation/devicetree/bindings/bus/ts-nbus.txt
> new file mode 100644
> index 000000000000..905600adfb64
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/bus/ts-nbus.txt
> @@ -0,0 +1,50 @@
> +Technologic Systems NBUS
> +
> +The NBUS is a bus used to interface with peripherals in the Technologic
> +Systems FPGA on the TS-4600 SoM.
> +
> +Required properties :
> + - compatible : "technologic,ts-nbus"
> + - #address-cells : must be 1
> + - #size-cells : must be 0
> + - pwms : The PWM bound to the FPGA
> + - ts-data-gpios : The 8 GPIO pins connected to the data lines on the FPGA
> + - ts-csn-gpios : The GPIO pin connected to the csn line on the FPGA
> + - ts-txrx-gpios : The GPIO pin connected to the txrx line on the FPGA
> + - ts-strobe-gpios : The GPIO pin connected to the stobe line on the FPGA
> + - ts-ale-gpios : The GPIO pin connected to the ale line on the FPGA
> + - ts-rdy-gpios : The GPIO pin connected to the rdy line on the FPGA

Vendor prefixes are in the form <vendor>,<propname>. So ts,rdy-gpios.

Rob