On Wed, Oct 09, 2013 at 05:04:21PM +0300, Mika Westerberg wrote: > If the SPI device is enumerated from ACPI namespace (it has an ACPI handle) > it might have ACPI methods that needs to be called in order to transition > the device to different power states (such as _PSx). Acked-by: Mark Brown <broonie@xxxxxxxxxx> > + if (ACPI_HANDLE(&spi->dev)) > + acpi_dev_pm_attach(&spi->dev, true); Though I do wonder if it wouldn't be sensible to push the if () here inside acpi_dev_pm_attach() and similarly for _detach(). Terribly trivial either way.
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