acer-wmi: Add acer wmi hotkey events support

Add acer wmi hotkey event support. Install a wmi notify handler to
transfer wmi event key to key code, then send out keycode through acer
wmi input device to userland.

Signed-off-by: Lee, Chun-Yi <jlee@novell.com>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Acked-by: Thomas Renninger <trenn@suse.de>
Acked-by: Jiri Benc <jbenc@suse.cz>
Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Cc: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Matthew Garrett <mjg@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index fbee997d2c24..a122a0dac981 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -22,8 +22,10 @@ config ACER_WMI
         depends on NEW_LEDS
         depends on BACKLIGHT_CLASS_DEVICE
         depends on SERIO_I8042
+        depends on INPUT
         depends on RFKILL || RFKILL = n
         depends on ACPI_WMI
+        select INPUT_SPARSEKMAP
         ---help---
           This is a driver for newer Acer (and Wistron) laptops. It adds
           wireless radio and bluetooth control, and on some laptops,