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| author | Alex Shi <alex.shi@linaro.org> | 2016-05-05 13:36:03 +0800 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2016-05-05 13:36:03 +0800 |
| commit | e91b1cc90283c1b9b75670b027a18afbd20fe070 (patch) | |
| tree | 81c395406a3774775a183d544aee9c5ced1c31d6 /drivers/hid/hid-multitouch.c | |
| parent | d83731cf53fd3af7173cab5e3f573d06ebc852be (diff) | |
| parent | 0b3df30dcadcddc56aed56c3c2d2de2ca963e81d (diff) | |
Merge branch 'linux-linaro-lsk-v4.1' into linux-linaro-lsk-v4.1-rtlsk-v4.1-16.06-rtlsk-v4.1-16.05-rt
Diffstat (limited to 'drivers/hid/hid-multitouch.c')
| -rw-r--r-- | drivers/hid/hid-multitouch.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index 6a9b05b328a9..1180664d1206 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -322,8 +322,19 @@ 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: |