Messages in this thread | | | Date | Tue, 09 Jun 2020 19:24:34 +0530 | From | Sai Prakash Ranjan <> | Subject | Re: [PATCH 2/2] arm64: dts: qcom: sc7180: Add support to skip powering up of ETM |
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Hi Bjorn,
On 2020-05-15 16:21, Sai Prakash Ranjan wrote: > Add "qcom,skip-power-up" property to skip powering up ETM > on SC7180 SoC to workaround a hardware errata where CPU > watchdog counter is stopped when ETM power up bit is set > (i.e., when TRCPDCR.PU = 1). > > Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org> > --- > > Depends on ETM driver change here - > https://lore.kernel.org/patchwork/cover/1242100/ > > --- > arch/arm64/boot/dts/qcom/sc7180.dtsi | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi > b/arch/arm64/boot/dts/qcom/sc7180.dtsi > index 8b3707347547..de4bae4ec224 100644 > --- a/arch/arm64/boot/dts/qcom/sc7180.dtsi > +++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi > @@ -1657,6 +1657,7 @@ > clocks = <&aoss_qmp>; > clock-names = "apb_pclk"; > arm,coresight-loses-context-with-cpu; > + qcom,skip-power-up; > > out-ports { > port { > @@ -1676,6 +1677,7 @@ > clocks = <&aoss_qmp>; > clock-names = "apb_pclk"; > arm,coresight-loses-context-with-cpu; > + qcom,skip-power-up; > > out-ports { > port { > @@ -1695,6 +1697,7 @@ > clocks = <&aoss_qmp>; > clock-names = "apb_pclk"; > arm,coresight-loses-context-with-cpu; > + qcom,skip-power-up; > > out-ports { > port { > @@ -1714,6 +1717,7 @@ > clocks = <&aoss_qmp>; > clock-names = "apb_pclk"; > arm,coresight-loses-context-with-cpu; > + qcom,skip-power-up; > > out-ports { > port { > @@ -1733,6 +1737,7 @@ > clocks = <&aoss_qmp>; > clock-names = "apb_pclk"; > arm,coresight-loses-context-with-cpu; > + qcom,skip-power-up; > > out-ports { > port { > @@ -1752,6 +1757,7 @@ > clocks = <&aoss_qmp>; > clock-names = "apb_pclk"; > arm,coresight-loses-context-with-cpu; > + qcom,skip-power-up; > > out-ports { > port { > @@ -1771,6 +1777,7 @@ > clocks = <&aoss_qmp>; > clock-names = "apb_pclk"; > arm,coresight-loses-context-with-cpu; > + qcom,skip-power-up; > > out-ports { > port { > @@ -1790,6 +1797,7 @@ > clocks = <&aoss_qmp>; > clock-names = "apb_pclk"; > arm,coresight-loses-context-with-cpu; > + qcom,skip-power-up; > > out-ports { > port {
I have sent this patch as a part of other coresight changes to keep all coresight DT changes together[1], we can drop this patch now.
[1] - https://lore.kernel.org/patchwork/cover/1253969/
Thanks, Sai
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