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* PM / OPP: Add dev_pm_opp_{un}register_get_pstate_helper()Viresh Kumar2017-10-141-0/+2
| | | | | | | | | | | | | This adds the dev_pm_opp_{un}register_get_pstate_helper() helper routines which will be used to set the get_pstate() callback for a device. This callback will be later called internally by the OPP core to get performance state corresponding to an OPP. This is required temporarily until the time we have proper DT bindings to include the performance state information. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* PM / OPP: Support updating performance state of device's power domainViresh Kumar2017-10-141-0/+4
| | | | | | | | | | | | | | | | | | | The genpd framework now provides an API to request device's power domain to update its performance state. Use that interface from the OPP core for devices whose power domains support performance states. Note that this commit doesn't add any mechanism by which performance states are made available to the OPP core. That would be done by a later commit. Note that the current implementation is restricted to the case where the device doesn't have separate regulators for itself. We shouldn't over engineer the code before we have real use case for them. We can always come back and add more code to support such cases later on. Tested-by: Rajendra Nayak <rnayak@codeaurora.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* PM / OPP: Move the OPP directory out of power/Viresh Kumar2017-10-031-0/+222
The drivers/base/power/ directory is special and contains code related to power management core like system suspend/resume, hibernation, etc. It was fine to keep the OPP code inside it when we had just one file for it, but it is growing now and already has a directory for itself. Lets move it directly under drivers/ directory, just like cpufreq and cpuidle. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>