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drm/radeon: block the keypress on ATIF events

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The AMD ACPI interface may use ACPI_VIDEO_NOTIFY_PROBE to signal SBIOS
requests; block the keypress in this case since the user did not
actually press the mode switch key.

Signed-off-by: Luca Tettamanti <kronos.it@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Luca Tettamanti 2012-08-02 11:39:38 -04:00 committed by Alex Deucher
parent 8a37c65df9
commit 92fdf89aa9
1 changed files with 6 additions and 1 deletions
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7
drivers/gpu/drm/radeon/radeon_acpi.c
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@ -301,7 +301,12 @@ int radeon_atif_handler(struct radeon_device *rdev,
}
/* TODO: check other events */
return NOTIFY_OK;
/* We've handled the event, stop the notifier chain. The ACPI interface
* overloads ACPI_VIDEO_NOTIFY_PROBE, we don't want to send that to
* userspace if the event was generated only to signal a SBIOS
* request.
*/
return NOTIFY_BAD;
}
static int radeon_acpi_event(struct notifier_block *nb,