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path: root/drivers/platform/x86/intel-hid.c
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Diffstat (limited to 'drivers/platform/x86/intel-hid.c')
-rw-r--r--drivers/platform/x86/intel-hid.c23
1 files changed, 16 insertions, 7 deletions
diff --git a/drivers/platform/x86/intel-hid.c b/drivers/platform/x86/intel-hid.c
index 2f5b8d09143e..078648a9201b 100644
--- a/drivers/platform/x86/intel-hid.c
+++ b/drivers/platform/x86/intel-hid.c
@@ -90,6 +90,13 @@ static const struct dmi_system_id button_array_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "HP Spectre x2 Detachable"),
},
},
+ {
+ .ident = "Lenovo ThinkPad X1 Tablet Gen 2",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_FAMILY, "ThinkPad X1 Tablet Gen 2"),
+ },
+ },
{ }
};
@@ -476,11 +483,16 @@ static void notify_handler(acpi_handle handle, u32 event, void *context)
goto wakeup;
/*
- * Switch events will wake the device and report the new switch
- * position to the input subsystem.
+ * Some devices send (duplicate) tablet-mode events when moved
+ * around even though the mode has not changed; and they do this
+ * even when suspended.
+ * Update the switch state in case it changed and then return
+ * without waking up to avoid spurious wakeups.
*/
- if (priv->switches && (event == 0xcc || event == 0xcd))
- goto wakeup;
+ if (event == 0xcc || event == 0xcd) {
+ report_tablet_mode_event(priv->switches, event);
+ return;
+ }
/* Wake up on 5-button array events only. */
if (event == 0xc0 || !priv->array)
@@ -494,9 +506,6 @@ static void notify_handler(acpi_handle handle, u32 event, void *context)
wakeup:
pm_wakeup_hard_event(&device->dev);
- if (report_tablet_mode_event(priv->switches, event))
- return;
-
return;
}