- Andy On Thu, 24 Oct 2019 at 18:41, Sudeep Holla <sudeep.holla@xxxxxxx> wrote: > > On Thu, Oct 10, 2019 at 01:39:37PM +0200, Ulf Hansson wrote: > > To enable the OS to better support PSCI OS initiated CPU suspend mode, > > let's convert from the flattened layout to the hierarchical layout. > > > > In the hierarchical layout, let's create a power domain provider per CPU > > and describe the idle states for each CPU inside the power domain provider > > node. To group the CPUs into a cluster, let's add another power domain > > provider and make it act as the master domain. Note that, the CPU's idle > > states remains compatible with "arm,idle-state", while the cluster's idle > > state becomes compatible with "domain-idle-state". > > > > Cc: Andy Gross <andy.gross@xxxxxxxxxx> > > Co-developed-by: Lina Iyer <lina.iyer@xxxxxxxxxx> > > Signed-off-by: Lina Iyer <lina.iyer@xxxxxxxxxx> > > Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx> > > --- > > arch/arm64/boot/dts/qcom/msm8916.dtsi | 57 +++++++++++++++++++++++++-- > > 1 file changed, 53 insertions(+), 4 deletions(-) > > > > diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi > > index 5ea9fb8f2f87..1ece0c763592 100644 > > --- a/arch/arm64/boot/dts/qcom/msm8916.dtsi > > +++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi > > @@ -102,10 +102,11 @@ > > reg = <0x0>; > > next-level-cache = <&L2_0>; > > enable-method = "psci"; > > - cpu-idle-states = <&CPU_SLEEP_0>; > > clocks = <&apcs>; > > operating-points-v2 = <&cpu_opp_table>; > > #cooling-cells = <2>; > > + power-domains = <&CPU_PD0>; > > + power-domain-names = "psci"; > > As mentioned in the patch: Do we really need to make power-domain-names > compulsory ? Yes, I think that is a good idea. However, let's discuss in the other thread instead. Again, thanks a lot for reviewing! Kind regards Uffe
