[PATCH/RFC] drm/radeon: ACPI: veto the keypress on ATIF events

[Alex Deucher]

On Wed, Aug 1, 2012 at 9:49 AM, Luca Tettamanti <kronos.it at gmail.com> wrote:
> AMD ACPI interface may overload the standard event
> ACPI_VIDEO_NOTIFY_PROBE (0x81) to signal AMD-specific events. In such
> cases we don't want to send the keypress (KEY_SWITCHVIDEOMODE) to the
> userspace because the user did not press the mode switch key (the
> spurious keypress confuses the DE which usually changes the
> display configuration and messes up a dual-screen setup).
> This patch gives the radeon driver the chance to examine the event and
> block the keypress if the event is an "AMD event".
>
> Signed-off-by: Luca Tettamanti <kronos.it at gmail.com>

Looks good to me, but I'm certainly not an ACPI expert.

Acked-by: Alex Deucher <alexander.deucher at amd.com>