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-rw-r--r-- | Documentation/devicetree/bindings/serial/maxim,max310x.txt | 48 |
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diff --git a/Documentation/devicetree/bindings/serial/maxim,max310x.txt b/Documentation/devicetree/bindings/serial/maxim,max310x.txt new file mode 100644 index 000000000..79e10a05a --- /dev/null +++ b/Documentation/devicetree/bindings/serial/maxim,max310x.txt @@ -0,0 +1,48 @@ +* Maxim MAX310X advanced Universal Asynchronous Receiver-Transmitter (UART) + +Required properties: +- compatible: Should be one of the following: + - "maxim,max3107" for Maxim MAX3107, + - "maxim,max3108" for Maxim MAX3108, + - "maxim,max3109" for Maxim MAX3109, + - "maxim,max14830" for Maxim MAX14830. +- reg: SPI chip select number. +- 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. +- clock-names: Should be "xtal" if clock is an external crystal or + "osc" if an external clock source is used. + +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: + +/ { + clocks { + spi_uart_clk: osc_max14830 { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <3686400>; + }; + + }; +}; + +&spi0 { + max14830: max14830@0 { + compatible = "maxim,max14830"; + reg = <0>; + clocks = <&spi_uart_clk>; + clock-names = "osc"; + interrupt-parent = <&gpio3>; + interrupts = <7 IRQ_TYPE_LEVEL_LOW>; + gpio-controller; + #gpio-cells = <2>; + }; +}; |