Hi, This series enables CPUFreq for AM625. This version is a fixup and rebase of the patch series by Dave Gerlach on v6.1-rc3 [1]. It updates the ti-cpufreq driver to support parsing of the speed grade value out of the JTAG_USER_ID register and adds necessary support code to use cpufreq-dt. The operating-points table that gets added support 200,400,600,800 for all variants and then 1GHz for the S Speed grade only and 1.25 for the T Speed grade only. 1.4GHz has been added in board specific dts file as it requires VDD_CORE to be at 0.85V. The latency between pre and post frequency transition was measured in CPUFreq driver for all combinations of OPP changes. The average value was selected as overall clock-latency. Tested on am62-sk board using manual frequency changes and then reading back frequency with k3conf, and this shows matching frequency to what was set. This should not impact existing K3 platforms that do not have operating points table defined. Regards, Vibhore [1] https://github.com/dgerlach/linux-pm/tree/v5.18/am62x-cpufreq Dave Gerlach (4): cpufreq: ti-cpufreq: Add support for AM625 cpufreq: dt-platdev: Blacklist ti,am625 SoC arm64: dts: ti: k3-am625: Introduce operating-points table cpufreq: ti: Enable ti-cpufreq for ARCH_K3 Vibhore Vardhan (1): arm64: dts: ti: k3-am625-sk: Add 1.4GHz OPP arch/arm64/boot/dts/ti/k3-am625-sk.dts | 9 +++++ arch/arm64/boot/dts/ti/k3-am625.dtsi | 51 ++++++++++++++++++++++++++ drivers/cpufreq/Kconfig.arm | 4 +- drivers/cpufreq/cpufreq-dt-platdev.c | 1 + drivers/cpufreq/ti-cpufreq.c | 36 ++++++++++++++++++ 5 files changed, 99 insertions(+), 2 deletions(-) -- 2.34.1
