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Subject[PATCH] HID: i2c-hid: Disable runtime PM on Goodix touchpad
Date
A Goodix touchpad doesn't work. Touching the touchpad can trigger IRQ
but there's no input event from HID subsystem.

Turns out it reports some invalid data:
[ 22.136630] i2c_hid i2c-DELL091F:00: input: 0b 00 01 00 00 00 00 00 00 00 00

After some trial and error, it's another device that doesn't work well
with ON/SLEEP commands. Disable runtime PM to fix the issue.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
---
drivers/hid/hid-ids.h | 3 +++
drivers/hid/i2c-hid/i2c-hid.c | 2 ++
2 files changed, 5 insertions(+)

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 3171db744c1c..6a8cb0679961 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -442,6 +442,9 @@
#define USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A 0x010a
#define USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100 0xe100

+#define I2C_VENDOR_ID_GOODIX 0x27c6
+#define I2C_DEVICE_ID_GOODIX_01F0 0x01f0
+
#define USB_VENDOR_ID_GOODTOUCH 0x1aad
#define USB_DEVICE_ID_GOODTOUCH_000f 0x000f

diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
index 103916c6026c..b235d2b38f39 100644
--- a/drivers/hid/i2c-hid/i2c-hid.c
+++ b/drivers/hid/i2c-hid/i2c-hid.c
@@ -178,6 +178,8 @@ static const struct i2c_hid_quirks {
I2C_HID_QUIRK_RESEND_REPORT_DESCR },
{ USB_VENDOR_ID_LG, I2C_DEVICE_ID_LG_8001,
I2C_HID_QUIRK_NO_RUNTIME_PM },
+ { I2C_VENDOR_ID_GOODIX, I2C_DEVICE_ID_GOODIX_01F0,
+ I2C_HID_QUIRK_NO_RUNTIME_PM },
{ 0, 0 }
};

--
2.17.1
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