Messages in this thread | | | Date | Thu, 11 Jan 2024 10:15:08 +0530 | From | Manivannan Sadhasivam <> | Subject | Re: [PATCH] arm64: dts: qcom: qrb2210-rb1: disable cluster power domains |
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On Thu, Jan 11, 2024 at 04:01:14AM +0200, Dmitry Baryshkov wrote: > If cluster domain idle state is enabled on the RB1, the board becomes > significantly less responsive. Under certain circumstances (if some of > the devices are disabled in kernel config) the board can even lock up. > > It seems this is caused by the MPM not being pinged during CPU idle (in > the same way the RPMh is pinged when cluster idle is entered). >
What does "ping" mean here? Please be more specific.
- Mani
> Disable cluster domain idle for the RB1 board until MPM driver is fixed > to cooperate with the CPU idle states. > > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> > --- > arch/arm64/boot/dts/qcom/qrb2210-rb1.dts | 18 ++++++++++++++++++ > 1 file changed, 18 insertions(+) > > diff --git a/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts b/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts > index aa53b6af6d9c..9a0308ef8b0f 100644 > --- a/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts > +++ b/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts > @@ -177,6 +177,24 @@ vph_pwr: regulator-vph-pwr { > }; > }; > > +&CPU_PD0 { > + /delete-property/ power-domains; > +}; > + > +&CPU_PD1 { > + /delete-property/ power-domains; > +}; > + > +&CPU_PD2 { > + /delete-property/ power-domains; > +}; > + > +&CPU_PD3 { > + /delete-property/ power-domains; > +}; > + > +/delete-node/ &CLUSTER_PD; > + > &gpi_dma0 { > status = "okay"; > }; > > --- > base-commit: 39676dfe52331dba909c617f213fdb21015c8d10 > change-id: 20240111-qrb2210-rb1-no-cluster-idle-7bf43b3a0452 > > Best regards, > -- > Dmitry Baryshkov <dmitry.baryshkov@linaro.org> > >
-- மணிவண்ணன் சதாசிவம்
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