Messages in this thread | | | Subject | Re: [PATCH 1/2] dt-bindings: Add mtk-systimer bindings | From | Daniel Lezcano <> | Date | Mon, 25 Jun 2018 23:53:45 +0200 |
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On 25/06/2018 09:10, Stanley Chu wrote: > Add binding documentation for the System Timer driver of > the Mediatek SoCs. > > Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> > --- > .../bindings/timer/mediatek,mtk-systimer.txt | 18 ++++++++++++++++++ > 1 file changed, 18 insertions(+) > create mode 100644 Documentation/devicetree/bindings/timer/mediatek,mtk-systimer.txt > > diff --git a/Documentation/devicetree/bindings/timer/mediatek,mtk-systimer.txt b/Documentation/devicetree/bindings/timer/mediatek,mtk-systimer.txt > new file mode 100644 > index 0000000..735a6fd > --- /dev/null > +++ b/Documentation/devicetree/bindings/timer/mediatek,mtk-systimer.txt > @@ -0,0 +1,18 @@ > +Mediatek System Timers > +---------------------- > + > +Required properties: > +- compatible: should contain > + "mediatek,sys_timer" for those platforms which support system timer. > +- reg: Mandatory. The location and length for system timer registers. > +- clock-frequency: Optional. If not assigned specifically, default > + value 13000000 (means 13 MHz) would be applied.
The driver tells there is an error if it is not defined, so it can't be optional.
> +Examples: > + > + sys_timer@10017000 { > + compatible = "mediatek,sys_timer"; > + reg = <0 0x10017000 0 0x1000>; > + interrupts = <GIC_SPI 194 IRQ_TYPE_LEVEL_HIGH>; > + clock-frequency = <13000000>;
Replace it by a phandle to a 'fixed-clock'.
eg.
clocks = <&myclk>;
> + };
myclk: myclk { #clock-cells = <0>; compatible = "fixed-clock"; clock-frequency = <13000000>; };
Thanks
-- DAniel
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