linux-kernel - [PATCH] HID: i2c-hid: Fix flooded incomplete report after S3 on Rayd touchscreen

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Date:   Tue, 21 Aug 2018 16:55:13 +0800
From:   AceLan Kao <acelan.kao@...onical.com>
To:     Jiri Kosina <jikos@...nel.org>,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Dmitry Torokhov <dtor@...omium.org>,
        Aaron Ma <aaron.ma@...onical.com>, linux-input@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] HID: i2c-hid: Fix flooded incomplete report after S3 on Rayd touchscreen

The incomplete report flooded after S3 and touchscreen becomes
malfunctioned.
[ 1367.646244] i2c_hid i2c-CUST0000:00: i2c_hid_get_input: incomplete report (58/18785)
[ 1367.649471] i2c_hid i2c-CUST0000:00: i2c_hid_get_input: incomplete report (58/28743)
[ 1367.651092] i2c_hid i2c-CUST0000:00: i2c_hid_get_input: incomplete report (58/26757)
[ 1367.652658] i2c_hid i2c-CUST0000:00: i2c_hid_get_input: incomplete report (58/52280)
[ 1367.654287] i2c_hid i2c-CUST0000:00: i2c_hid_get_input: incomplete report (58/56059)

Adding device ID, 04F3:30CC, to the quirk to re-send report description
after resume.

Cc: stable@...r.kernel.org
Signed-off-by: AceLan Kao <acelan.kao@...onical.com>
---
 drivers/hid/hid-ids.h         | 1 +
 drivers/hid/i2c-hid/i2c-hid.c | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index c7981ddd8776..e80bcd71fe1e 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -528,6 +528,7 @@
 
 #define I2C_VENDOR_ID_RAYD		0x2386
 #define I2C_PRODUCT_ID_RAYD_3118	0x3118
+#define I2C_PRODUCT_ID_RAYD_4B33	0x4B33
 
 #define USB_VENDOR_ID_HANWANG		0x0b57
 #define USB_DEVICE_ID_HANWANG_TABLET_FIRST	0x5000
diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
index eae0cb3ddec6..5fd1159fc095 100644
--- a/drivers/hid/i2c-hid/i2c-hid.c
+++ b/drivers/hid/i2c-hid/i2c-hid.c
@@ -174,6 +174,8 @@ static const struct i2c_hid_quirks {
 		I2C_HID_QUIRK_RESEND_REPORT_DESCR },
 	{ USB_VENDOR_ID_SIS_TOUCH, USB_DEVICE_ID_SIS10FB_TOUCH,
 		I2C_HID_QUIRK_RESEND_REPORT_DESCR },
+	{ I2C_VENDOR_ID_RAYD, I2C_PRODUCT_ID_RAYD_4B33,
+		I2C_HID_QUIRK_RESEND_REPORT_DESCR },
 	{ 0, 0 }
 };
 
-- 
2.17.1