Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: [PATCH 1/5] PM / Runtime: Support for generic I/O power domains (v4) | Date | Mon, 6 Jun 2011 20:48:31 +0200 |
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On Thursday, June 02, 2011, Guennadi Liakhovetski wrote: > On Sat, 28 May 2011, Rafael J. Wysocki wrote: > > > From: Rafael J. Wysocki <rjw@sisk.pl> > > > > Introduce common headers, helper functions and callbacks allowing > > platforms to use simple generic power domains for runtime power > > management. > > > > Introduce struct generic_power_domain to be used for representing > > power domains that each contain a number of devices and may be > > master domains or subdomains with respect to other power domains. > > Among other things, this structure includes callbacks to be > > provided by platforms for performing specific tasks related to > > power management (i.e. ->stop_device() may disable a device's > > clocks, while ->start_device() may enable them, ->power_off() is > > supposed to remove power from the entire power domain > > and ->power_on() is supposed to restore it). > > I've got a generic question to this: do we have any examples of > power-domain specific ->start_device() and ->stop_device() callbacks? A > common case is, when these callbacks start and stop clocks, associated > with the device, but this is not power-domain specific, right? Do we have > any examples of different power domains in a system, having different > these calbacks, but all devices in one power-domain, having the same ones?
No, we don't have any at the moment.
Thanks, Rafael
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