spacemit: add CPU scaling for OrangePi R2S#3
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Signed-off-by: jhl <jonatanh@hotmail.com>
21hertz
marked this pull request as ready for review
July 15, 2026 15:46
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@dhewg : here's a patch for the R2S. It's my first pull request, let me know if I didn't follow guidelines or best practices correctly. |
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Adds CPU frequency scaling for the OrangePi R2S, mirroring the existing RV2 support: includes k1-opp.dtsi and wires the eight CPU cores to the P1 PMIC's buck1 rail (buck1_0v9).
Tested on real R2S hardware — the OPP steps appear and frequencies scale under load:
Note: Upstream carries the R2S board and its PMIC, but the shared k1-opp.dtsi / cpufreq enablement isn't in mainline yet.