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Date:   Fri, 12 May 2017 10:17:11 -0500
From:   Rob Herring <robh@...nel.org>
To:     Sebastien Bourdelin <sebastien.bourdelin@...oirfairelinux.com>
Cc:     linux-kernel@...r.kernel.org, linux-watchdog@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        kernel@...oirfairelinux.com, linux@...ck-us.net,
        linus.walleij@...aro.org, shawnguo@...nel.org,
        fabio.estevam@....com, mark@...eddedarm.com, kris@...eddedarm.com
Subject: Re: [PATCH v3 3/6] dt-bindings: bus: Add documentation for the
 Technologic Systems NBUS

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@...oirfairelinux.com>
> ---
> 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

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