On Wed, Feb 24, 2016 at 11:04:20PM +0100, Joachim Eastwood wrote:
> Add DT binding documentation for lpc1850-creg-clk driver.
>
> Signed-off-by: Joachim Eastwood <manabian@xxxxxxxxx>
> ---
> .../devicetree/bindings/clock/lpc1850-creg-clk.txt | 52 ++++++++++++++++++++++
> 1 file changed, 52 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/clock/lpc1850-creg-clk.txt
One typo, otherwise:
Acked-by: Rob Herring <robh@xxxxxxxxxx>
>
> diff --git a/Documentation/devicetree/bindings/clock/lpc1850-creg-clk.txt b/Documentation/devicetree/bindings/clock/lpc1850-creg-clk.txt
> new file mode 100644
> index 000000000000..4e13586d083c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/lpc1850-creg-clk.txt
> @@ -0,0 +1,52 @@
> +* NXP LPC1850 CREG clocks
> +
> +The NXP LPC18xx/43xx CREG (Configuration Registers) block contains
> +control registers for two low speed clocks. One of the clocks is a
> +32 kHz oscillator driver with power up/down and clock gating. Next
> +is a fixed divider that creates a 1 kHz clock from the 32 kHz osc.
> +
> +These clocks are used by the RTC and the Event Router peripherials.
> +The 32 kHz can also be routed to other peripherials to enable low
> +power modes.
> +
> +This binding uses the common clock binding:
> + Documentation/devicetree/bindings/clock/clock-bindings.txt
> +
> +Required properties:
> +- compatible:
> + Should be "nxp,lpc1850-creg-clk"
> +- #clock-cells:
> + Shall have value <1>.
> +- clocks:
> + Shall contain a phandle to the fixed 32 kHz crystall.
s/crystall/crystal/
> +
> +The creg-clk node must be a child of the creg syscon node.
> +
> +The following clocks are available from the clock node.
> +
> +Clock ID Name
> + 0 1 kHz clock
> + 1 32 kHz Oscillator
> +
> +Example:
> +soc {
> + creg: syscon@40043000 {
> + compatible = "nxp,lpc1850-creg", "syscon", "simple-mfd";
> + reg = <0x40043000 0x1000>;
> +
> + creg_clk: clock-controller {
> + compatible = "nxp,lpc1850-creg-clk";
> + clocks = <&xtal32>;
> + #clock-cells = <1>;
> + };
> +
> + ...
> + };
> +
> + rtc: rtc@40046000 {
> + ...
> + clocks = <&creg_clk 0>, <&ccu1 CLK_CPU_BUS>;
> + clock-names = "rtc", "reg";
> + ...
> + };
> +};
> --
> 1.8.0
>
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