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authorChristian Hewitt <christianshewitt@gmail.com>2022-02-10 11:06:38 +0100
committerNeil Armstrong <narmstrong@baylibre.com>2022-04-04 09:52:03 +0200
commitfd86d85401c2049f652293877c0f7e6e5afc3bbc (patch)
tree70811863148bb1028b449dca01e8a65f6e5713d6 /arch
parentarm64: dts: meson: remove CPU opps below 1GHz for G12B boards (diff)
downloadlinux-fd86d85401c2049f652293877c0f7e6e5afc3bbc.tar.xz
linux-fd86d85401c2049f652293877c0f7e6e5afc3bbc.zip
arm64: dts: meson: remove CPU opps below 1GHz for SM1 boards
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> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Link: https://lore.kernel.org/r/20220210100638.19130-3-christianshewitt@gmail.com
Diffstat (limited to 'arch')
-rw-r--r--arch/arm64/boot/dts/amlogic/meson-sm1.dtsi20
1 files changed, 0 insertions, 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>;