From 2cc9e7ec219819db10474160d65837c6c260522a Mon Sep 17 00:00:00 2001 From: Michael Turquette Date: Thu, 9 Jun 2016 16:20:47 -0700 Subject: clk: gxbb: Document bindings for the GXBB clock controller Add documentations for the clock controller. Tested-by: Kevin Hilman Signed-off-by: Michael Turquette --- .../bindings/clock/amlogic,gxbb-clkc.txt | 36 ++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/amlogic,gxbb-clkc.txt (limited to 'Documentation/devicetree/bindings/clock') diff --git a/Documentation/devicetree/bindings/clock/amlogic,gxbb-clkc.txt b/Documentation/devicetree/bindings/clock/amlogic,gxbb-clkc.txt new file mode 100644 index 000000000000..ce06435d28ed --- /dev/null +++ b/Documentation/devicetree/bindings/clock/amlogic,gxbb-clkc.txt @@ -0,0 +1,36 @@ +* Amlogic GXBB Clock and Reset Unit + +The Amlogic GXBB clock controller generates and supplies clock to various +controllers within the SoC. + +Required Properties: + +- compatible: should be "amlogic,gxbb-clkc" +- reg: physical base address of the clock controller and length of memory + mapped region. + +- #clock-cells: should be 1. + +Each clock is assigned an identifier and client nodes can use this identifier +to specify the clock which they consume. All available clocks are defined as +preprocessor macros in the dt-bindings/clock/gxbb-clkc.h header and can be +used in device tree sources. + +Example: Clock controller node: + + clkc: clock-controller@c883c000 { + #clock-cells = <1>; + compatible = "amlogic,gxbb-clkc"; + reg = <0x0 0xc883c000 0x0 0x3db>; + }; + +Example: UART controller node that consumes the clock generated by the clock + controller: + + uart_AO: serial@c81004c0 { + compatible = "amlogic,meson-uart"; + reg = <0xc81004c0 0x14>; + interrupts = <0 90 1>; + clocks = <&clkc CLKID_CLK81>; + status = "disabled"; + }; -- cgit v1.2.3