On 26/02/2018 15:36, Tomer Maimon wrote:
> Added device tree binding documentation for Nuvoton NPCM7xx timer.
>
> Signed-off-by: Tomer Maimon <tmaimon77@xxxxxxxxx>
> Acked-by: Rob Herring <robh@xxxxxxxxxx>
> Reviewed-by: Brendan Higgins <brendanhiggins@xxxxxxxxxx>
> ---
> .../bindings/timer/nuvoton,npcm7xx-timer.txt | 25 ++++++++++++++++++++++
> 1 file changed, 25 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/timer/nuvoton,npcm7xx-timer.txt
>
> diff --git a/Documentation/devicetree/bindings/timer/nuvoton,npcm7xx-timer.txt b/Documentation/devicetree/bindings/timer/nuvoton,npcm7xx-timer.txt
> new file mode 100644
> index 000000000000..c5150522e618
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/timer/nuvoton,npcm7xx-timer.txt
> @@ -0,0 +1,25 @@
> +Nuvoton NPCM7xx timer
> +
> +Nuvoton NPCM7xx have three timer modules, each timer module provides five 24-bit
> +timer counters.
> +
> +Required properties:
> +- compatible : "nuvoton,npcm750-timer" for Poleg NPCM750.
> +- reg : Offset and length of the register set for the device.
> +- interrupts : Contain the timer interrupt with flags for
> + falling edge.
> +
> +Required clocking property, have to be one of:
> +- clocks : phandle of timer reference clock.
> +- clock-frequency : The frequency in Hz of the clock that drives the NPCM7xx
> + timer (usually 25000000).
Why one of these and not the phandle only ? That will make the driver
cleaner.
> +
> +Example:
> +
> +timer@f0008000 {
> + compatible = "nuvoton,npcm750-timer";
> + interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
> + reg = <0xf0008000 0x1000>;
> + clocks = <&clk NPCM7XX_CLK_TIMER>;
> +};
> +
>
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