Messages in this thread | | | Date | Mon, 26 Nov 2012 08:31:18 +0200 | From | Mika Westerberg <> | Subject | Re: [PATCH 0/2] ACPI / platform: Put devices enumerated via ACPI into D0 before probing drivers |
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On Sun, Nov 25, 2012 at 03:54:14PM +0100, Rafael J. Wysocki wrote: > The following two patches are meant to work around a problem where some > devices may be in the ACPI D3cold power state (power off) before their > drivers' .probe() routines are called, but those routines assume devices > to be operational. They also allow ACPI PM to be used going forward with > the devices in question.
We have such machines here. I've tested the series on one of them and it solves the problem - drivers can now access device registers right from the start.
> [1/2] - Allow ACPI PM attach/detach routines to change device power states. > [2/2] - Call the ACPI PM attach/detach routines in the platform probe and > remove/shutdown callbacks (and change power states of devices as > necessary).
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
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