platform/x86: dell-wmi: Ignore new rfkill and fn-lock events

There are two new events generated by dell-wmi, rfkill and fn-lock, from
Dell Systems.

When Fn-lock hotkey gets pressed to switch to function mode:
[85951.591542] dell_wmi: Unknown key with type 0x0010 and code 0xe035
pressed
[85951.591546] dell_wmi: Unknown key with type 0x0010 and code 0x0000
pressed

When Fn-lock hotkey gets pressed to switch to multimedia mode:
[85956.667686] dell_wmi: Unknown key with type 0x0010 and code 0xe035
pressed
[85956.667690] dell_wmi: Unknown key with type 0x0010 and code 0x0001
pressed

When radio hotkey gets pressed:
[85974.430220] dell_wmi: Unknown key with type 0x0010 and code 0xe008
pressed

These events are for notification purpose, so we can ignore them.

This patch is tested on XPS 9370.

Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c
index 7c918e373ac2..16c7f3d9a335 100644
--- a/drivers/platform/x86/dell-wmi.c
+++ b/drivers/platform/x86/dell-wmi.c
@@ -261,6 +261,12 @@ static const u16 bios_to_linux_keycode[256] = {
  * override them.
  */
 static const struct key_entry dell_wmi_keymap_type_0010[] = {
+        /* Fn-lock switched to function keys */
+        { KE_IGNORE, 0x0, { KEY_RESERVED } },
+
+        /* Fn-lock switched to multimedia keys */
+        { KE_IGNORE, 0x1, { KEY_RESERVED } },
+
         /* Mic mute */
         { KE_KEY, 0x150, { KEY_MICMUTE } },
 
@@ -296,6 +302,14 @@ static const struct key_entry dell_wmi_keymap_type_0010[] = {
         { KE_KEY,    0x851, { KEY_PROG2 } },
         { KE_KEY,    0x852, { KEY_PROG3 } },
 
+        /*
+         * Radio disable (notify only -- there is no model for which the
+         * WMI event is supposed to trigger an action).
+         */
+        { KE_IGNORE, 0xe008, { KEY_RFKILL } },
+
+        /* Fn-lock */
+        { KE_IGNORE, 0xe035, { KEY_RESERVED } },
 };
 
 /*