Messages in this thread | | | Subject | Re: [PATCH v3 4/5] PM / Domains: Add support for multi PM domains per device to genpd | From | Jon Hunter <> | Date | Thu, 31 May 2018 13:47:48 +0100 |
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On 31/05/18 12:40, Lucas Stach wrote: > Hi Ulf, > > Am Donnerstag, den 31.05.2018, 12:59 +0200 schrieb Ulf Hansson: >> To support devices being partitioned across multiple PM domains, let's >> begin with extending genpd to cope with these kind of configurations. >> >> Therefore, add a new exported function genpd_dev_pm_attach_by_id(), which >> is similar to the existing genpd_dev_pm_attach(), but with the difference >> that it allows its callers to provide an index to the PM domain that it >> wants to attach. >> >> Note that, genpd_dev_pm_attach_by_id() shall only be called by the driver >> core / PM core, similar to how the existing dev_pm_domain_attach() makes >> use of genpd_dev_pm_attach(). However, this is implemented by following >> changes on top. > > by_id() APIs are not really intuitive to use for driver writers. Other > subsystems have solved this by providing a "-names" property to give > the phandles a bit more meaning and then providing a by_name API. I > would really appreciate if PM domains could move in the same direction.
As discussed here [0], there are plans to add that.
Cheers Jon
[0] https://patchwork.ozlabs.org/patch/921938/
-- nvpublic
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