From: Christian Hewitt christianshewitt@gmail.com
stable inclusion from stable-v5.10.114 commit 70d2df257eed77aba55b124751ab98b3510216dd category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I5IY1V
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit fd86d85401c2049f652293877c0f7e6e5afc3bbc ]
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 Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com Acked-by: Xie XiuQi xiexiuqi@huawei.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 c309517abae3..defe0b8d4d27 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>;