On Sun 26 Apr 2020 at 18:21, Tim Lewis <elatllat@xxxxxxxxx> wrote: > Add extra cpu pop points to allow mild overclock on S922X. The opp > points are found in Hardkernel N2 sources [1] and testing shows no > obvious issues on other S922X devices. Thermal throttling should > keep things in-check if needed. The Odroid-N2 has a massive heatsink mounted. Do we have any idea if this applies (is safe) on any other S922x device ? It would be nice to get some input (review) from Amlogic is this to included for any devices using the SoC. In the meantime, I think this should be applied to odroid-n2 dt only. > > [1] https://github.com/hardkernel/linux/commit/f86cd9487c7483b2a05f448b9ebacf6bd5a2ad2f > Tested-by: Christian Hewitt <christianshewitt@xxxxxxxxx> > Reviewed-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx> > Signed-off-by: Tim Lewis <elatllat@xxxxxxxxx> > > --- > arch/arm64/boot/dts/amlogic/meson-g12b-s922x.dtsi | 15 +++++++++++++++ > 1 files changed, 15 insertions(+) > > diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-s922x.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12b-s922x.dtsi > index 046cc332d..1e5d0ee5d 100644 > --- a/arch/arm64/boot/dts/amlogic/meson-g12b-s922x.dtsi > +++ b/arch/arm64/boot/dts/amlogic/meson-g12b-s922x.dtsi > @@ -65,6 +65,11 @@ > opp-hz = /bits/ 64 <1896000000>; > opp-microvolt = <981000>; > }; > + > + opp-1992000000 { > + opp-hz = /bits/ 64 <1992000000>; > + opp-microvolt = <1001000>; > + }; > }; > > cpub_opp_table_1: opp-table-1 { > @@ -120,5 +125,15 @@ > opp-hz = /bits/ 64 <1704000000>; > opp-microvolt = <891000>; > }; > + > + opp-1800000000 { > + opp-hz = /bits/ 64 <1800000000>; > + opp-microvolt = <981000>; > + }; > + > + opp-1908000000 { > + opp-hz = /bits/ 64 <1908000000>; > + opp-microvolt = <1022000>; > + }; > }; > };
