arm64: dts: meson: remove CPU opps below 1GHz for G12A boards
authorChristian Hewitt <christianshewitt@gmail.com>
Thu, 19 Jan 2023 05:30:31 +0000 (05:30 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 10 Mar 2023 08:39:00 +0000 (09:39 +0100)
commit89895442387d27b3b347c2df97f9375b87ff485b
tree6714da4faa964a3e2ba1cd9cc02cbb7a3ee0f44a
parent69c7a270357a7d50ffd3471b14c60250041200e3
arm64: dts: meson: remove CPU opps below 1GHz for G12A boards

[ Upstream commit 3cbd431c2b34d84605d358c8c57654193fd661fb ]

Amlogic G12A 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: b190056fa9ee ("arm64: dts: meson-g12a: add cpus OPP table")
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Link: https://lore.kernel.org/r/20230119053031.21400-1-christianshewitt@gmail.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
arch/arm64/boot/dts/amlogic/meson-g12a.dtsi