On Fri, Jan 11, 2019 at 03:14:00PM +0000, Jan Kotas wrote:
> This patch adds a DT binding documentation for
> Cadence RTC controller.
>
> Signed-off-by: Jan Kotas <j...@cadence.com>
> ---
> Documentation/devicetree/bindings/rtc/cdns,rtc.txt | 25
> ++++++++++++++++++++++
> 1 file changed, 25 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/rtc/cdns,rtc.txt
>
> diff --git a/Documentation/devicetree/bindings/rtc/cdns,rtc.txt
> b/Documentation/devicetree/bindings/rtc/cdns,rtc.txt
> new file mode 100644
> index 000000000..40713bbbe
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/rtc/cdns,rtc.txt
> @@ -0,0 +1,25 @@
> +Cadence Real Time Clock
> +
> +The Cadence RTC controller with date, time and alarm capabilities.
> +The alarm may wake the system from low-power state.
> +
> +Required properties:
> +- compatible: Should be "cdns,rtc-r109v3"
> +- reg: Specifies base physical address and size of the register area.
> +- interrupts: A single interrupt specifier.
> +- clocks: Must contain two entries:
> + - pclk: APB registers clock
> + - ref_clk: reference 1Hz of 100Hz clock, depending on IP configuration
1Hz OR 100Hz?
> + See ../clocks/clock-bindings.txt for details.
> +
> +Example:
> + rtc0: rtc@fd080000 {
> + compatible = "cdns,rtc-r109v3";
> + reg = <0xfd080000 0x1000>;
> +
> + clock-names = "pclk", "ref_clk";
> + clocks = <&sysclock>, <&refclock>;
> +
> + interrupt-parent = <&gic>;
> + interrupts = <0 6 IRQ_TYPE_LEVEL_HIGH>;
> + };
> --
> 2.15.0
>
