David Dai
6acfcba3de
Adding bindings to represent a virtual cpufreq device. Virtual machines may expose MMIO regions for a virtual cpufreq device for guests to read performance information or to request performance selection. The virtual cpufreq device has an individual controller for each performance domain. Performance points for a given domain can be normalized across all domains for ease of allowing for virtual machines to migrate between hosts. Bug: 284367589 Test: Boot up with compatible VMM backend emulation Link: https://lore.kernel.org/all/20240919000837.1004642-2-davidai@google.com/ (cherry picked from commit 984638e4430b75bd38dba723e42aad4c748fed70 git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git cpufreq/arm/linux-next) Change-Id: Ic67335c69a4b584e9f5008e02f87b4179002375e Co-developed-by: Saravana Kannan <saravanak@google.com> Signed-off-by: Saravana Kannan <saravanak@google.com> Signed-off-by: David Dai <davidai@google.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>