diff options
| author | Christian Hewitt <christianshewitt@gmail.com> | 2022-02-10 10:06:38 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-05-09 09:03:23 +0200 |
| commit | 0405bd7f18885d157fefb4e98011d17be849acea (patch) | |
| tree | bd408ae7412b227b31b03d96c2440350def24fcf /arch/arm64/boot/dts | |
| parent | 5f80b5c5f4069ba7860dc44978dae16bb888d70b (diff) | |
arm64: dts: meson: remove CPU opps below 1GHz for SM1 boards
[ 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>
Diffstat (limited to 'arch/arm64/boot/dts')
| -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 8ba3555ca369..dd62a608c805 100644 --- a/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi @@ -55,26 +55,6 @@ 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>; |