same issue, linux-serial, does not route me
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> From: indrakanti_ram@xxxxxxxxxxx
> To: ramakirankumar.i@xxxxxxx; jslaby@xxxxxxx; gregkh@xxxxxxxxxxxxxxxxxxx; moorray3@xxxxx
> CC: linux-serial@xxxxxxxxxxxxxxx; indrakanti_ram@xxxxxxxxxxx
> Subject: [PATCH v3 2/2] sc16is7xx: spi interface documentation
> Date: Fri, 15 May 2015 13:27:53 +0530
>
> Updated the documentation for spi interface.
>
> Signed-off-by: ram.i hcltech <indrakanti_ram@xxxxxxxxxxx>
> ---
> .../devicetree/bindings/serial/nxp,sc16is7xx.txt | 37 ++++++++++++++++++++++
> 1 file changed, 37 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt b/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt
> index 246c795..fbfe536 100644
> --- a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt
> +++ b/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt
> @@ -1,4 +1,5 @@
> * NXP SC16IS7xx advanced Universal Asynchronous Receiver-Transmitter (UART)
> +* i2c as bus
>
> Required properties:
> - compatible: Should be one of the following:
> @@ -31,3 +32,39 @@ Example:
> gpio-controller;
> #gpio-cells = <2>;
> };
> +
> +* spi as bus
> +
> +Required properties:
> +- compatible: Should be one of the following:
> + - "nxp,sc16is740" for NXP SC16IS740,
> + - "nxp,sc16is741" for NXP SC16IS741,
> + - "nxp,sc16is750" for NXP SC16IS750,
> + - "nxp,sc16is752" for NXP SC16IS752,
> + - "nxp,sc16is760" for NXP SC16IS760,
> + - "nxp,sc16is762" for NXP SC16IS762.
> +- reg: SPI chip select number.
> +- interrupt-parent: The phandle for the interrupt controller that
> + services interrupts for this IC.
> +- interrupts: Specifies the interrupt source of the parent interrupt
> + controller. The format of the interrupt specifier depends on the
> + parent interrupt controller.
> +- clocks: phandle to the IC source clock.
> +
> +Optional properties:
> +- gpio-controller: Marks the device node as a GPIO controller.
> +- #gpio-cells: Should be two. The first cell is the GPIO number and
> + the second cell is used to specify the GPIO polarity:
> + 0 = active high,
> + 1 = active low.
> +
> +Example:
> + sc16is750: sc16is750@0 {
> + compatible = "nxp,sc16is750";
> + reg = <0>;
> + clocks = <&clk20m>;
> + interrupt-parent = <&gpio3>;
> + interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + };
> --
> 1.9.1
>
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