On 23-06-27 12:46:28, Greg Kroah-Hartman wrote: > On Tue, Jun 27, 2023 at 01:40:32PM +0300, Abel Vesa wrote: > > From: Ulf Hansson <ulf.hansson@xxxxxxxxxx> > > > > Some power-domains may be capable of relying on the HW to control the power > > for a device that's hooked up to it. Typically, for these kinds of > > configurations the device doesn't really need to be attached to a PM domain > > (genpd), from Linux point of view. However, in some cases the behaviour of > > the power-domain and its device can be changed in runtime. > > > > To allow a consumer driver to change the behaviour of the PM domain for its > > device, let's provide a new function, dev_pm_genpd_set_hwmode(). Moreover, > > let's add a corresponding optional genpd callback, ->set_hwmode_dev(), > > which the genpd provider should implement if it can support switching > > between HW controlled mode and SW controlled mode. > > > > Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx> > > You can't forward on a patch from someone else without also adding your > signed-off-by on it, right? Oups, forgot to add it. Will do in the next version. > > Also, why is this a RFC series? What is left to do with it to get it > into a state which you feel comfortable having us review it "for real"? There is a bit of back story here. This HW control support is something that Qualcomm platforms support for some of the PDs. Sent this as RFC as I thought it might open up a discussion of such a generic need at first. But now that I think of it, it might've been a non-RFC patch as well. > > thanks, > > greg k-h
