Patch "arm64: dts: meson: remove CPU opps below 1GHz for G12A boards" has been added to the 5.4-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    arm64: dts: meson: remove CPU opps below 1GHz for G12A boards

to the 5.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     arm64-dts-meson-remove-cpu-opps-below-1ghz-for-g12a-.patch
and it can be found in the queue-5.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit ad2c4b17a8cbf6015dbba7c8b835332021ded3ef
Author: Christian Hewitt <christianshewitt@xxxxxxxxx>
Date:   Thu Jan 19 05:30:31 2023 +0000

    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@xxxxxxxxx>
    Link: https://lore.kernel.org/r/20230119053031.21400-1-christianshewitt@xxxxxxxxx
    Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi
index eb5d177d7a999..c8c438c0b429c 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi
@@ -54,26 +54,6 @@ cpu_opp_table: opp-table {
 		compatible = "operating-points-v2";
 		opp-shared;
 
-		opp-100000000 {
-			opp-hz = /bits/ 64 <100000000>;
-			opp-microvolt = <731000>;
-		};
-
-		opp-250000000 {
-			opp-hz = /bits/ 64 <250000000>;
-			opp-microvolt = <731000>;
-		};
-
-		opp-500000000 {
-			opp-hz = /bits/ 64 <500000000>;
-			opp-microvolt = <731000>;
-		};
-
-		opp-667000000 {
-			opp-hz = /bits/ 64 <666666666>;
-			opp-microvolt = <731000>;
-		};
-
 		opp-1000000000 {
 			opp-hz = /bits/ 64 <1000000000>;
 			opp-microvolt = <731000>;