Hi Ulf,
Sorry for the late reply, please see my comments inline.
On 2020/11/6 22:37, Ulf Hansson via Linaro-open-discussions wrote:
On Fri, 6 Nov 2020 at 09:53, Mike Holmes via Linaro-open-discussions linaro-open-discussions@op-lists.linaro.org wrote:
All
Thanks for a good discussion yesterday, Hanjun's Unconre DVFS slides are now attached to the notes at https://collaborate.linaro.org/display/LOD/2020-11-04+Meeting+Meeting+notes
Just to make sure people know about it...
For DT based platforms we have recently enabled a generic solution in the Linux kernel to support DVFS. From a top level point of view, it consists of letting a power-domain provider act as the backend driver for changing the performance state (voltage/frequency). The mapping of what state to select, is done through OPP tables.
I am not an expert of ACPI specifications, but perhaps the DT bindings can be used as inspiration for what is missing!?
Could you point me to the patches or documentation?
Thanks Hanjun