On Fri, Mar 31, 2017 at 06:54:35PM +0200, Helmut Klein wrote:
> Add the documentation for the device tree binding of meson_uart
>
> Signed-off-by: Helmut Klein <hgkr.klein@xxxxxxxxx>
> ---
> .../bindings/serial/amlogic,meson_uart.txt | 30 ++++++++++++++++++++++
> 1 file changed, 30 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/serial/amlogic,meson_uart.txt
>
> diff --git a/Documentation/devicetree/bindings/serial/amlogic,meson_uart.txt b/Documentation/devicetree/bindings/serial/amlogic,meson_uart.txt
> new file mode 100644
> index 000000000000..8250a191c2fc
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/serial/amlogic,meson_uart.txt
> @@ -0,0 +1,30 @@
> +* Amlogic Meson UART, used in multiple SoCs (e.g. S905, s905X, ...)
> +
> +Required properties:
> +- compatible : "amlogic,meson-uart"
Should have SoC specific compatible strings in addition.
> +- reg : offset and length of the register set for the device.
> +- interrupts : device interrupt
> +- clocks : a list of phandle + clock-specifier pairs, one for each
> + entry in clock names.
> +- clocks-names : contains:
> + * "xtal" for the baud rate clock
> + * "core" for the core clock of none AO UARTs (optional)
> +
> +e.g.
> +uart_A: serial@84c0 {
> + compatible = "amlogic,meson-uart";
> + reg = <0x0 0x84c0 0x0 0x14>;
> + pinctrl-0 = <&uart_a_pins &uart_a_cts_rts_pins>;
> + interrupts = <GIC_SPI 26 IRQ_TYPE_EDGE_RISING>;
> + clocks = <&xtal>, <&clkc CLKID_UART0>;
> + clock-names = "xtal", "core";
> + status = "ok";
Drop status from examples.
> +};
> +
> +Note: Each port should have an alias correctly numbered in "aliases" node.
True for pretty much any uart, so you can drop this.
> +
> +e.g.
> +aliases {
> + serial0 = &uart_AO;
> + serial1 = &uart_A;
> +};
> --
> 2.11.0
>
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