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authorY Paritcher <y.linux@paritcher.com>2020-06-10 20:56:58 +0300
committerAndy Shevchenko <andriy.shevchenko@linux.intel.com>2020-07-09 22:47:27 +0300
commit54491304fc2b9532a4031e1b516812ab20545eee (patch)
tree38144251221a8e8faec258522d9d79a8994f5b58 /drivers/platform
parent0c026c361be1734ac84da968d52876c068ab4d75 (diff)
downloadlinux-54491304fc2b9532a4031e1b516812ab20545eee.tar.xz
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: Y Paritcher <y.linux@paritcher.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Pali Rohár <pali@kernel.org> Reviewed-by: Mario Limonciello <mario.limonciello@dell.com>
Diffstat (limited to 'drivers/platform')
-rw-r--r--drivers/platform/x86/dell-wmi.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c
index e3bc2601e631..bbdb3e860892 100644
--- a/drivers/platform/x86/dell-wmi.c
+++ b/drivers/platform/x86/dell-wmi.c
@@ -506,7 +506,7 @@ static void handle_dmi_entry(const struct dmi_header *dm, void *opaque)
u16 keycode = (bios_entry->keycode <
ARRAY_SIZE(bios_to_linux_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