linux-kernel - Re: [PATCH] dt-bindings: misc: bk4: Add device tree binding for Liebherr's BK4 SPI bus

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Date:   Mon, 8 Oct 2018 14:30:43 +0200
From:   Lukasz Majewski <lukma@...x.de>
To:     Shawn Guo <shawnguo@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: misc: bk4: Add device tree binding for
 Liebherr's BK4 SPI bus

Dear All,

> Add Device Tree binding document for Liebherr's BK4 external SPI bus.
> 

Gentle ping...

> Signed-off-by: Lukasz Majewski <lukma@...x.de>
> ---
>  Documentation/devicetree/bindings/misc/lwn-bk4.txt | 26
> ++++++++++++++++++++++ 1 file changed, 26 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/misc/lwn-bk4.txt
> 
> diff --git a/Documentation/devicetree/bindings/misc/lwn-bk4.txt
> b/Documentation/devicetree/bindings/misc/lwn-bk4.txt new file mode
> 100644 index 000000000000..d6a8c188c087
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/misc/lwn-bk4.txt
> @@ -0,0 +1,26 @@
> +* Liebherr's BK4 controller external SPI
> +
> +A device which handles data acquisition from compatible industrial
> +peripherals.
> +The SPI is used for data and management purposes in both master and
> +slave modes.
> +
> +Required properties:
> +
> +- compatible : Should be "lwn,bk4"
> +
> +Required SPI properties:
> +
> +- reg : Should be address of the device chip select within
> +  the controller.
> +
> +- spi-max-frequency : Maximum SPI clocking speed of device in Hz,
> should be
> +  30MHz at most for the Liebherr's BK4 external bus.
> +
> +Example:
> +
> +spidev0: spi@0 {
> +	compatible = "lwn,bk4";
> +	spi-max-frequency = <30000000>;
> +	reg = <0>;
> +};




Best regards,

Lukasz Majewski

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