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| author | Christian Hewitt <christianshewitt@gmail.com> | 2022-02-10 13:06:38 +0300 |
|---|---|---|
| committer | Neil Armstrong <narmstrong@baylibre.com> | 2022-04-04 10:52:03 +0300 |
| commit | fd86d85401c2049f652293877c0f7e6e5afc3bbc (patch) | |
| tree | 70811863148bb1028b449dca01e8a65f6e5713d6 /arch/arm64/boot/dts/amlogic | |
| parent | 6c4d636bc00dc17c63ffb2a73a0da850240e26e3 (diff) | |
| download | linux-fd86d85401c2049f652293877c0f7e6e5afc3bbc.tar.xz | |
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/arm64/boot/dts/amlogic')
| -rw-r--r-- | arch/arm64/boot/dts/amlogic/meson-sm1.dtsi | 20 |
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>; |