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From: Joey Pabalinas <joeypabalinas@gmail.com>
To: linux-input@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, Jiri Kosina <jikos@kernel.org>,
	Benjamin Tissoires <benjamin.tissoires@redhat.com>,
	Daniel Martin <consume.noise@gmail.com>
Subject: [PATCH RESEND 2/4] HID: multitouch: don't check HID_GROUP_MULTITOUCH_WIN_8 for serial protocol
Date: Thu,  9 Aug 2018 13:39:17 -1000
Message-ID: <0aaacf083be5b68a830f9e174f9abee3b00c5a51.1530402641.git.joeypabalinas@gmail.com> (raw)
Message-ID: <20180809233917.v1O-swi2wOcHMe3RYECQMK13WORSZsdn8-mRktg8aos@z> (raw)
In-Reply-To: <cover.1530402641.git.joeypabalinas@gmail.com>

The HID_GROUP_MULTITOUCH_WIN_8 group never needs to check for the serial
protocol, so avoid setting `td->serial_maybe = true;` in order to avoid
an unnecessary mt_post_parse_default_settings() call

Signed-off-by: Joey Pabalinas <joeypabalinas@gmail.com>

 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index a793076139d7d0db9b..c0654db0b736543ca0 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -1460,11 +1460,13 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	if (!td->fields) {
 		dev_err(&hdev->dev, "cannot allocate multitouch fields data\n");
 		return -ENOMEM;
 	}
 
-	if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
+	if (id->vendor == HID_ANY_ID
+			&& id->product == HID_ANY_ID
+			&& id->group != HID_GROUP_MULTITOUCH_WIN_8)
 		td->serial_maybe = true;
 
 	/* This allows the driver to correctly support devices
 	 * that emit events over several HID messages.
 	 */
-- 
2.18.0


  parent reply index

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-01  0:19 [PATCH 0/4] reduce Surface Pro 3 multitouch jitter Joey Pabalinas
2018-07-01  0:19 ` [PATCH 1/4] HID: multitouch: add MT_QUIRK_NOT_SEEN_MEANS_UP to MT_CLS_WIN_8 quirks Joey Pabalinas
2018-07-03  7:53   ` Benjamin Tissoires
2018-08-09 23:57     ` Joey Pabalinas
2018-08-09 23:39   ` [PATCH RESEND " Joey Pabalinas
2018-08-10  3:54   ` Joey Pabalinas
2018-07-01  0:19 ` Joey Pabalinas [this message]
2018-07-03  8:16   ` [PATCH 2/4] HID: multitouch: don't check HID_GROUP_MULTITOUCH_WIN_8 for serial protocol Benjamin Tissoires
2018-08-10  3:50     ` Joey Pabalinas
2018-08-09 23:39   ` [PATCH RESEND " Joey Pabalinas
2018-07-01  0:19 ` [PATCH 3/4] HID: multitouch: drop reports containing invalid values Joey Pabalinas
2018-07-03  8:13   ` Benjamin Tissoires
2018-08-10  3:27     ` Joey Pabalinas
2018-08-09 23:39   ` [PATCH RESEND " Joey Pabalinas
2018-07-01  0:19 ` [PATCH 4/4] HID: multitouch: remove unneeded else conditional cases Joey Pabalinas
2018-07-03  8:17   ` Benjamin Tissoires
2018-08-10  0:03     ` Joey Pabalinas
2018-08-09 23:39   ` [PATCH RESEND " Joey Pabalinas
2018-08-09 23:39 ` [PATCH RESEND 0/4] reduce Surface Pro 3 multitouch jitter Joey Pabalinas

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