platform/x86: acer-wmi: Acer Aspire One AOD270/Packard Bell Dot keymap fixes

2 keymap fixes for the Acer Aspire One AOD270 and the same hardware
rebranded as Packard Bell Dot SC:

1. The F2 key is marked with a big '?' symbol on the Packard Bell Dot SC,
this sends WMID_HOTKEY_EVENTs with a scancode of 0x27 add a mapping
for this.

2. Scancode 0x61 is KEY_SWITCHVIDEOMODE. Usually this is a duplicate
input event with the "Video Bus" input device events. But on these devices
the "Video Bus" does not send events for this key. Map 0x61 to KEY_UNKNOWN
instead of using KE_IGNORE so that udev/hwdb can override it on these devs.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220829163544.5288-1-hdegoede@redhat.com

diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index e0230ea0cb7ee9c9e1c578198689362a8c5414db..f1259d81d86daf02ce862dd5444e0545d9a8ec95 100644 (file)
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -99,6 +99,7 @@ static const struct key_entry acer_wmi_keymap[] __initconst = {
        {KE_KEY, 0x22, {KEY_PROG2} },    /* Arcade */
        {KE_KEY, 0x23, {KEY_PROG3} },    /* P_Key */
        {KE_KEY, 0x24, {KEY_PROG4} },    /* Social networking_Key */
+       {KE_KEY, 0x27, {KEY_HELP} },
        {KE_KEY, 0x29, {KEY_PROG3} },    /* P_Key for TM8372 */
        {KE_IGNORE, 0x41, {KEY_MUTE} },
        {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} },
@@ -112,7 +113,13 @@ static const struct key_entry acer_wmi_keymap[] __initconst = {
        {KE_IGNORE, 0x48, {KEY_VOLUMEUP} },
        {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} },
        {KE_IGNORE, 0x4a, {KEY_VOLUMEDOWN} },
-       {KE_IGNORE, 0x61, {KEY_SWITCHVIDEOMODE} },
+       /*
+        * 0x61 is KEY_SWITCHVIDEOMODE. Usually this is a duplicate input event
+        * with the "Video Bus" input device events. But sometimes it is not
+        * a dup. Map it to KEY_UNKNOWN instead of using KE_IGNORE so that
+        * udev/hwdb can override it on systems where it is not a dup.
+        */
+       {KE_KEY, 0x61, {KEY_UNKNOWN} },
        {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} },
        {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} },
        {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */