platform/x86: intel-hid: Enable 5-button array on ThinkPad X1 Fold 16 Gen 1

The Lenovo ThinkPad X1 Fold 16 Gen 1 has physical volume up/down
buttons that are handled through the intel-hid 5-button array
interface. The firmware does not advertise 5-button array support via
HEBC, so the driver relies on a DMI allowlist to enable it.

Add the ThinkPad X1 Fold 16 Gen 1 to the button_array_table so the
volume buttons work out of the box.

Signed-off-by: Leif Skunberg <diamondback@cohunt.app>
Reviewed-by: Hans de Goede <johannes.goede@oss.qualcomm.com>
Link: https://patch.msgid.link/20260210085625.34380-1-diamondback@cohunt.app
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

diff --git a/drivers/platform/x86/intel/hid.c b/drivers/platform/x86/intel/hid.c
index a8ae2dba7ffdabfbc761a96f66d775faed7bd935..95c405c8bac02aaa6b24945e666316f8d6b5485f 100644 (file)
--- a/drivers/platform/x86/intel/hid.c
+++ b/drivers/platform/x86/intel/hid.c
@@ -135,6 +135,13 @@ static const struct dmi_system_id button_array_table[] = {
                        DMI_MATCH(DMI_PRODUCT_FAMILY, "ThinkPad X1 Tablet Gen 2"),
                },
        },
+       {
+               .ident = "Lenovo ThinkPad X1 Fold 16 Gen 1",
+               .matches = {
+                       DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+                       DMI_MATCH(DMI_PRODUCT_FAMILY, "ThinkPad X1 Fold 16 Gen 1"),
+               },
+       },
        {
                .ident = "Microsoft Surface Go 3",
                .matches = {