[PATCH 4/4] cpufreq: add an Amlogic speed-bin driver

[Viresh Kumar]

On 26-10-26, 09:57, Jerome Brunet wrote:
> On lun. 26 oct. 2026 at 11:00, Viresh Kumar <viresh.kumar at linaro.org> wrote:
> 
> > On 25-10-26, 20:22, christian.koever-draxl at student.uibk.ac.at wrote:
> >> From: Christian Stefan Kövér-Draxl <ckoever at outlook.de>
> >> 
> >> Every S4 speed bin runs the same CPU frequencies but needs its own
> >> voltage curve, and the bin can only be read through the secure monitor.
> >> 
> >> Read the bin from the firmware, select the matching
> >> "opp-microvolt-speed<bin>" property for all CPUs, then register
> >> cpufreq-dt. Bins outside the known range fall back to bin 0, which
> >> has the highest voltages. Like sun50i-cpufreq-nvmem, the driver binds
> >> on the SoC compatible and needs no node of its own, and S4 is added to
> >> the cpufreq-dt-platdev blocklist so cpufreq-dt is only created after
> >> the bin has been applied.
> >> 
> >> Signed-off-by: Christian Stefan Kövér-Draxl <ckoever at outlook.de>
> >> ---
> >>  MAINTAINERS                          |   1 +
> >>  drivers/cpufreq/Kconfig.arm          |  14 ++
> >>  drivers/cpufreq/Makefile             |   1 +
> >>  drivers/cpufreq/amlogic-cpufreq.c    | 184 +++++++++++++++++++++++++++
> >>  drivers/cpufreq/cpufreq-dt-platdev.c |   2 +
> >>  5 files changed, 202 insertions(+)
> >>  create mode 100644 drivers/cpufreq/amlogic-cpufreq.c
> >
> > Is it safe to apply just this one ? I can take this via the PM tree then.
> 
> I would advise to wait a little for Amlogic to chime in.

Sure, I wasn't going to wait for the maintainers to respond anyway.

-- 
viresh