blob: 36f1c2d3f83d9a7a8253390ab2877643cb5d22e5 (
plain)
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diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 3d664d0..2b8ff18 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -357,8 +357,19 @@ static void mt_feature_mapping(struct hid_device *hdev,
break;
}
- td->inputmode = field->report->id;
- td->inputmode_index = usage->usage_index;
+ if (td->inputmode < 0) {
+ td->inputmode = field->report->id;
+ td->inputmode_index = usage->usage_index;
+ } else {
+ /*
+ * Some elan panels wrongly declare 2 input mode
+ * features, and silently ignore when we set the
+ * value in the second field. Skip the second feature
+ * and hope for the best.
+ */
+ dev_info(&hdev->dev,
+ "Ignoring the extra HID_DG_INPUTMODE\n");
+ }
break;
case HID_DG_CONTACTMAX:
--
2.5.0
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