Re: [PATCH v2 1/5] dt-bindings: clock: add description of LPC32xx clock controller

Rob Herring
2015-12-07T14:39:15Z

On Sun, Dec 06, 2015 at 12:45:53PM +0200, Vladimir Zapolskiy wrote:
> NXP LPC32xx SoC has a clocking and power control unit (CPC) as a part
> of system control block (SCB). CPC is supplied by two external
> oscillators and it manages core and most of peripheral
> clocks, the change adds description of DT bindings for clock
> controller found on LPC32xx SoC series.
>
> Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>

Acked-by: Rob Herring <robh@kernel.org>

> ---
> Changes from v1 to v2:
> - none
>
> .../devicetree/bindings/clock/nxp,lpc3220-clk.txt | 30 ++++++++++++++++++++++
> 1 file changed, 30 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/clock/nxp,lpc3220-clk.txt
>
> diff --git a/Documentation/devicetree/bindings/clock/nxp,lpc3220-clk.txt b/Documentation/devicetree/bindings/clock/nxp,lpc3220-clk.txt
> new file mode 100644
> index 0000000..20cbca3
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/nxp,lpc3220-clk.txt
> @@ -0,0 +1,30 @@
> +NXP LPC32xx Clock Controller
> +
> +Required properties:
> +- compatible: should be "nxp,lpc3220-clk"
> +- reg: should contain clock controller registers location and length
> +- #clock-cells: must be 1, the cell holds id of a clock provided by the
> + clock controller
> +- clocks: phandles of external oscillators, the list must contain one
> + 32768 Hz oscillator and may have one optional high frequency oscillator
> +- clock-names: list of external oscillator clock names, must contain
> + "xtal_32k" and may have optional "xtal"
> +
> +Examples:
> +
> + /* System Control Block */
> + scb {
> + compatible = "simple-bus";
> + ranges = <0x0 0x040004000 0x00001000>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + clk: clock-controller@0 {
> + compatible = "nxp,lpc3220-clk";
> + reg = <0x00 0x114>;
> + #clock-cells = <1>;
> +
> + clocks = <&xtal_32k>, <&xtal>;
> + clock-names = "xtal_32k", "xtal";
> + };
> + };
> --
> 2.1.4
>