Re: [PATCH V8 1/6] PM / Domains: Add support to select performance-state of domains

[Viresh Kumar]

On 29-07-17, 10:24, Ulf Hansson wrote:
> Let's invent a new genpd flag, GENPD_FLAG_PERF_STATE!
> 
> The creator of the genpd then needs to set this before calling
> pm_genpd_init(). Similar as we are dealing with GENPD_FLAG_PM_CLK.
> 
> The requirement for GENPD_FLAG_PERF_STATES, is to have the
> ->get_performance_state() assigned. This shall be verified during
> pm_genpd_init().
> 
> The pm_genpd_has_performance_state() then only need to return true, in
> cases the device's genpd has GENPD_FLAG_PERF_STATE set - else false.
> 
> Regarding ->set_performance_state(), let's just make it optional - and
> when trying to set a new performance state, just walk the genpd
> hierarchy, from bottom to up, then invoke the callback when it's
> assigned.

Sounds good.

-- 
viresh