diff options
| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2024-10-08 11:14:20 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-10 14:44:03 +0200 |
| commit | 3b639fe66528e1606254fac85ec2208b046bd200 (patch) | |
| tree | edf74b720fee5320138545bc5d83cd946ac458f6 /arch | |
| parent | c44f8d32abdf76d5eb02e75faaa77f52149807c8 (diff) | |
| download | linux-3b639fe66528e1606254fac85ec2208b046bd200.tar.gz linux-3b639fe66528e1606254fac85ec2208b046bd200.tar.bz2 linux-3b639fe66528e1606254fac85ec2208b046bd200.zip | |
arm64: dts: renesas: r8a774c0: Re-add voltages to OPP table
[ Upstream commit ea34dd0f029f4a30c055ddb6daaf7a6f3bee21ed ]
When CONFIG_ENERGY_MODEL=y:
cpu cpu0: EM: invalid perf. state: -22
When removing the (incorrect) voltages from the Operating Points
Parameters tables, it was assumed they were optional, and unused, when
none of the CPU nodes is tied to a regulator using the "cpu-supply"
property. This assumption turned out to be incorrect, causing the
reported error message.
Fix this by re-adding the (correct) voltages. Note that because all
voltages are identical, all operating points are considered to have the
same efficiency, and the energy model always picks the one with the
highest clock rate.
Reported-by: Renesas Test Team via Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Fixes: 554edc3e9239bb81 ("arm64: dts: renesas: r8a774c0: Remove bogus voltages from OPP table")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/2046da75f3db95b62f86c0482063c4d04c2b47d5.1728377971.git.geert+renesas@glider.be
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/boot/dts/renesas/r8a774c0.dtsi | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/renesas/r8a774c0.dtsi b/arch/arm64/boot/dts/renesas/r8a774c0.dtsi index 7655d5e3a034..522e20924e94 100644 --- a/arch/arm64/boot/dts/renesas/r8a774c0.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a774c0.dtsi @@ -47,16 +47,20 @@ cluster1_opp: opp-table-1 { compatible = "operating-points-v2"; opp-shared; + opp-800000000 { opp-hz = /bits/ 64 <800000000>; + opp-microvolt = <1030000>; clock-latency-ns = <300000>; }; opp-1000000000 { opp-hz = /bits/ 64 <1000000000>; + opp-microvolt = <1030000>; clock-latency-ns = <300000>; }; opp-1200000000 { opp-hz = /bits/ 64 <1200000000>; + opp-microvolt = <1030000>; clock-latency-ns = <300000>; opp-suspend; }; |