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SubjectRe: [PATCH 04/16] arm64: dts: qcom: sm8350: Specify clock-frequency for arch timer
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Quoting Konrad Dybcio (2021-11-30 11:59:03)
>
> On 30/11/2021 03:05, Stephen Boyd wrote:
> > Quoting Konrad Dybcio (2021-11-13 17:27:43)
> >> Arch timer runs at 19.2 MHz. Specify the rate in the timer node.
> >>
> >> Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
> >> ---
> >> arch/arm64/boot/dts/qcom/sm8350.dtsi | 1 +
> >> 1 file changed, 1 insertion(+)
> >>
> >> diff --git a/arch/arm64/boot/dts/qcom/sm8350.dtsi b/arch/arm64/boot/dts/qcom/sm8350.dtsi
> >> index a30ba3193d84..60866a20a55c 100644
> >> --- a/arch/arm64/boot/dts/qcom/sm8350.dtsi
> >> +++ b/arch/arm64/boot/dts/qcom/sm8350.dtsi
> >> @@ -2484,5 +2484,6 @@ timer {
> >> <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>,
> >> <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>,
> >> <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>;
> >> + clock-frequency = <19200000>;
> > Does the firmware not set the frequency properly?
>
> It does on my device on the current firmware version (it wouldn't really
> boot if it didn't, no?),
>
> but who knows if it always will, or if it always has been..
>
>
> It's present in downstream too, so I reckon it does not hurt to have it
> here too, even
>
> for completeness-of-describing-the-machine-properly sake.
>

No. We don't want dts files to have this. The property is only there to
workaround bad firmware that doesn't set the frequency. Please drop this
patch.

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