On Tue, Jun 27, 2017 at 12:44:58PM +0100, Jon Hunter wrote:
> >> static const struct dev_pm_ops tegra_dma_dev_pm_ops = {
> >> SET_RUNTIME_PM_OPS(tegra_dma_runtime_suspend, tegra_dma_runtime_resume,
> >> NULL)
> >> - SET_SYSTEM_SLEEP_PM_OPS(tegra_dma_pm_suspend, tegra_dma_pm_resume)
> >> + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
> >> + pm_runtime_force_resume)
> >
> > Is that even necessary? I thought runtime PM was going to be triggered
> > for system sleep anyway, but it looks like there are other examples of
> > this usage, so maybe I'm mistaken.
>
> Yes this is necessary. No RPM is not automatically trigger by system
> suspend AFAICT.
Yes I was earlier under the same impression but later did realize that the
behaviour seems to be arch specific and we don't have guarantee on this
--
~Vinod
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