-----Original Message-----
From: linux-arm-kernel <linux-arm-kernel-bounces@xxxxxxxxxxxxxxxxxxx> On Behalf Of Andre Przywara
Sent: Monday, March 18, 2024 6:42 AM
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Subject: [EXTERNAL] [PATCH v2 8/8] arm64: dts: allwinner: h616: enable DVFS for all boards
With the DT bindings now describing the format of the CPU OPP tables, we can include the OPP table in each board's .dts file, and specify the CPU power supply.
This allows to enable DVFS, and get up to 50% of performance benefit in the highest OPP, or up to 60% power savings in the lowest OPP, compared to the fixed 1GHz @ 1.0V OPP we are running in by default
at the moment.
[Amit] Could you please elaborate, what test were run to see 50 % performance benefits?
Currently all H616 boards running mainline firmware and kernels run at a
fixed 1GHz CPU clock frequency. If you happen to have a good SoC (bin 1 or
3), this patchset will allow you to run at 1.5 GHz, which is 50% faster.
So anything that scales with CPU frequency should run much quicker.
Okay, it would be interesting to see results of some benchmark here.
Thanks
-Amit
