Messages in this thread | | | Date | Mon, 4 Apr 2022 09:50:37 +0200 | Subject | Re: [PATCH v2 2/2] arm64: dts: meson: remove CPU opps below 1GHz for SM1 boards | From | Neil Armstrong <> |
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On 10/02/2022 11:06, Christian Hewitt wrote: > Amlogic SM1 devices experience CPU stalls and random board wedges when > the system idles and CPU cores clock down to lower opp points. Recent > vendor kernels include a change to remove 100-250MHz and other distro > sources also remove the 500/667MHz points. Unless all 100-667Mhz opps > are removed or the CPU governor forced to performance stalls are still > observed, so let's remove them to improve stability and uptime. > > Fixes: 3d9e76483049 ("arm64: dts: meson-sm1-sei610: enable DVFS") > Signed-off-by: Christian Hewitt <christianshewitt@gmail.com> > --- > arch/arm64/boot/dts/amlogic/meson-sm1.dtsi | 20 -------------------- > 1 file changed, 20 deletions(-) > > diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi b/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi > index 3c07a89bfd27..80737731af3f 100644 > --- a/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi > +++ b/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi > @@ -95,26 +95,6 @@ > compatible = "operating-points-v2"; > opp-shared; > > - opp-100000000 { > - opp-hz = /bits/ 64 <100000000>; > - opp-microvolt = <730000>; > - }; > - > - opp-250000000 { > - opp-hz = /bits/ 64 <250000000>; > - opp-microvolt = <730000>; > - }; > - > - opp-500000000 { > - opp-hz = /bits/ 64 <500000000>; > - opp-microvolt = <730000>; > - }; > - > - opp-667000000 { > - opp-hz = /bits/ 64 <666666666>; > - opp-microvolt = <750000>; > - }; > - > opp-1000000000 { > opp-hz = /bits/ 64 <1000000000>; > opp-microvolt = <770000>;
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
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