diff options
| author | Joey Pabalinas | 2018-06-30 17:35:15 -1000 |
|---|---|---|
| committer | Joey Pabalinas | 2018-06-30 17:35:15 -1000 |
| commit | 7160ff9fc51814697dca5e99ae31cf60caf6d9c2 (patch) | |
| tree | 78e1f3fb67712f71507458a89585f4dcffbe1216 /0003-HID-multitouch-drop-reports-containing-invalid-value.patch | |
| parent | d14294613fbf2d3346ceaa17ba903bb985de541a (diff) | |
| download | aur-7160ff9fc51814697dca5e99ae31cf60caf6d9c2.tar.gz | |
upgpkg: linux-surfacepro3-git 4.18rc2.r298.g883c9ab9eb595f8542-1
upstream release
Diffstat (limited to '0003-HID-multitouch-drop-reports-containing-invalid-value.patch')
| -rw-r--r-- | 0003-HID-multitouch-drop-reports-containing-invalid-value.patch | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/0003-HID-multitouch-drop-reports-containing-invalid-value.patch b/0003-HID-multitouch-drop-reports-containing-invalid-value.patch new file mode 100644 index 000000000000..9649e0ffc093 --- /dev/null +++ b/0003-HID-multitouch-drop-reports-containing-invalid-value.patch @@ -0,0 +1,48 @@ +From 29ad484c1b357fd7fd670a6f252d097677b808f8 Mon Sep 17 00:00:00 2001 +Message-Id: <29ad484c1b357fd7fd670a6f252d097677b808f8.1530402641.git.joeypabalinas@gmail.com> +In-Reply-To: <cover.1530402641.git.joeypabalinas@gmail.com> +References: <cover.1530402641.git.joeypabalinas@gmail.com> +From: Joey Pabalinas <joeypabalinas@gmail.com> +To: linux-input@vger.kernel.org +CC: linux-kernel@vger.kernel.org +CC: Jiri Kosina <jikos@kernel.org> +CC: Benjamin Tissoires <benjamin.tissoires@redhat.com> +CC: Daniel Martin <consume.noise@gmail.com> +CC: Joey Pabalinas <joeypabalinas@gmail.com> +Date: Sat, 30 Jun 2018 13:29:56 -1000 +Subject: [PATCH 3/4] HID: multitouch: drop reports containing invalid values + +Avoid processing reports containing invalid values to reduce +multitouch input stutter. + +Signed-off-by: Joey Pabalinas <joeypabalinas@gmail.com> + + 1 file changed, 9 insertions(+) + +diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c +index c0654db0b736543ca0..08b50e5908cecdda66 100644 +--- a/drivers/hid/hid-multitouch.c ++++ b/drivers/hid/hid-multitouch.c +@@ -694,10 +694,19 @@ static void mt_complete_slot(struct mt_device *td, struct input_dev *input) + { + if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) && + td->num_received >= td->num_expected) + return; + ++ /* drop invalid values after counting them */ ++ if (td->curdata.x == 0xffff && ++ td->curdata.y == 0xffff && ++ td->curdata.w == 0xffff && ++ td->curdata.h == 0xffff) { ++ td->num_received++; ++ return; ++ } ++ + if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) { + int active; + int slotnum = mt_compute_slot(td, input); + struct mt_slot *s = &td->curdata; + struct input_mt *mt = input->mt; +-- +2.18.0 + |