On Fri, Jul 01, 2016 at 11:19:08PM +0300, Octavian Purdila wrote: > This patch adds supports for I2C device enumeration and removal via > ACPI reconfiguration notifications that are send as a result of an > ACPI table load or unload operation. > > The code is very similar with the device tree reconfiguration code > with only small differences in the way we test and set the enumerated > state of the device: > > * the equivalent of device tree's OF_POPULATED flag is the > flags.visited field in the ACPI device and the following > wrappers are used to manipulate it: acpi_device_enumerated(), > acpi_device_set_enumerated() and acpi_device_clear_enumerated() > > * the device tree code checks of status of the OF_POPULATED flag to > avoid trying to create duplicate Linux devices in two places: once > when the controller is probed, and once when the reconfigure event > is received; in the ACPI code the check is performed only once when > the ACPI namespace is searched because this code path is invoked in > both of the two mentioned cases > > The rest of the enumeration handling is similar with device tree: when > the Linux device is unregistered the ACPI device is marked as not > enumerated; also, when a device remove notification is received we > check that the device is in the enumerated state before continuing > with the removal of the Linux device. > > Signed-off-by: Octavian Purdila <octavian.purdila@xxxxxxxxx> > Reviewed-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> It has Mika's ack already, but to make sure: Acked-by: Wolfram Sang <wsa@xxxxxxxxxxxxx>
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