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PNP: Allow console to override ACPI device sleep

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If the serial console is an ACPI PNP device, the PNP bus always powers
down the device at system suspend, even though the no_console_suspend
command line parameter is specified (eg., when debugging suspend/resume).

Add PNP_CONSOLE capability, which when set, prevents calling both the
->disable() and ->suspend() PNP protocol methods if console suspend
is disabled.

Signed-off-by: Peter Hurley <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Peter Hurley 2015-01-22 11:50:24 -05:00 • committed by Greg Kroah-Hartman
commit 01395d7984
2 changed files with 11 additions and 3 deletions
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2
drivers/pnp/driver.c
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@ -182,7 +182,7 @@ static int __pnp_bus_suspend(struct device *dev, pm_message_t state)
return error;
}
if (pnp_dev->protocol->suspend)
if (pnp_can_suspend(pnp_dev))
pnp_dev->protocol->suspend(pnp_dev, state);
return 0;
}