From: Rafael J. Wysocki Date: Sun, 20 May 2012 11:58:00 +0000 (+0200) Subject: ACPI / PM: Make __acpi_bus_get_power() cover D3cold correctly X-Git-Tag: v3.5-rc2~42^2~1 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=38c92fff988d518fe80dc23d0d44d66bd7e47ddd;p=pandora-kernel.git ACPI / PM: Make __acpi_bus_get_power() cover D3cold correctly After recent changes of the ACPI device power states definitions, if power resources are not used for the device's power management, the state returned by __acpi_bus_get_power() cannot exceed D3hot, because the return values of _PSC are 0 through 3. However, if the _PR3 method is not present for the device and _PS3 returns 3, we have to assume that the device is in D3cold, so the value returned by __acpi_bus_get_power() in that case should be 4. Similarly, acpi_power_get_inferred_state() should take the power resources for the D3hot state into account in general, so that it can return 3 if those resources are "on" or 4 (D3cold) otherwise. Fix the the above two issues and make sure that if both _PSC and _PR3 are present for the device, the power resources listed by _PR3 will be used to determine if the number 3 returned by _PSC is meant to represent D3cold or D3hot. Signed-off-by: Rafael J. Wysocki --- Reading git-diff-tree failed