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path: root/arch/arm64/boot/dts/amlogic/meson-g12b-a311d.dtsi
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2022-05-09arm64: dts: meson: remove CPU opps below 1GHz for G12B boardsChristian Hewitt
[ Upstream commit 6c4d636bc00dc17c63ffb2a73a0da850240e26e3 ] Amlogic G12B 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: b96d4e92709b ("arm64: dts: meson-g12b: support a311d and s922x cpu operating points") 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/20220210100638.19130-2-christianshewitt@gmail.com Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-08-09arm64: dts: meson-g12b: support a311d and s922x cpu operating pointsChristian Hewitt
Meson g12b ships with a low-speed (S922X) and high-speed (A311D) variant so remove cpu_opp_table nodes in meson-g12b.dtsi and create two new dtsi that can be included in device-specific dts files. Opp points were taken from the vendor BSP kernel. Also make meson-g12b-odroid-n2.dts include the new meson-g12b-s922x.dtsi. Signed-off-by: Christian Hewitt <christianshewitt@gmail.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>