Commit 54491304 authored by Y Paritcher's avatar Y Paritcher Committed by Andy Shevchenko

platform/x86: dell-wmi: add new dmi mapping for keycode 0xffff

This keycode is used by Dell as a no-op for keys that should have
no function.

This keycode is never triggered by a keypress in practice, rather
it is included from the 0xB2 DMI table at startup.

This prevents the following messages from being logged at startup on a
Dell Inspiron 5593:

    dell_wmi: firmware scancode 0x48 maps to unrecognized keycode 0xffff
    dell_wmi: firmware scancode 0x50 maps to unrecognized keycode 0xffff

as per this code comment:

   Log if we find an entry in the DMI table that we don't
   understand.  If this happens, we should figure out what
   the entry means and add it to bios_to_linux_keycode.
Signed-off-by: default avatarY Paritcher <y.linux@paritcher.com>
Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: default avatarPali Rohár <pali@kernel.org>
Reviewed-by: default avatarMario Limonciello <mario.limonciello@dell.com>
parent 0c026c36
...@@ -506,7 +506,7 @@ static void handle_dmi_entry(const struct dmi_header *dm, void *opaque) ...@@ -506,7 +506,7 @@ static void handle_dmi_entry(const struct dmi_header *dm, void *opaque)
u16 keycode = (bios_entry->keycode < u16 keycode = (bios_entry->keycode <
ARRAY_SIZE(bios_to_linux_keycode)) ? ARRAY_SIZE(bios_to_linux_keycode)) ?
bios_to_linux_keycode[bios_entry->keycode] : bios_to_linux_keycode[bios_entry->keycode] :
KEY_RESERVED; (bios_entry->keycode == 0xffff ? KEY_UNKNOWN : KEY_RESERVED);
/* /*
* Log if we find an entry in the DMI table that we don't * Log if we find an entry in the DMI table that we don't
......
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