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authorHui Wang <hui.wang@canonical.com>2019-03-29 14:13:23 +0800
committerJiri Kosina <jkosina@suse.cz>2019-04-01 15:57:38 +0200
commit74e7c6c877f620d65a8269692d089bbd066f626c (patch)
tree577abd1f7f39311ca5e7b39001a696e737939bae /drivers/hid/i2c-hid
parent2bafa1e9625400bec4c840a168d70ba52607a58d (diff)
HID: i2c-hid: Disable runtime PM on Synaptics touchpad
We have a new Dell laptop which has the synaptics I2C touchpad (06cb:7e7e) on it. After booting up the Linux, the touchpad doesn't work, there is no interrupt when touching the touchpad, after disable the runtime PM, everything works well. I also tried the quirk of I2C_HID_QUIRK_DELAY_AFTER_SLEEP, it is better after applied this quirk, there are interrupts but data it reports is invalid. Signed-off-by: Hui Wang <hui.wang@canonical.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/i2c-hid')
-rw-r--r--drivers/hid/i2c-hid/i2c-hid-core.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/hid/i2c-hid/i2c-hid-core.c b/drivers/hid/i2c-hid/i2c-hid-core.c
index 90164fed08d3..4d1f24ee249c 100644
--- a/drivers/hid/i2c-hid/i2c-hid-core.c
+++ b/drivers/hid/i2c-hid/i2c-hid-core.c
@@ -184,6 +184,8 @@ static const struct i2c_hid_quirks {
I2C_HID_QUIRK_NO_RUNTIME_PM },
{ USB_VENDOR_ID_ELAN, HID_ANY_ID,
I2C_HID_QUIRK_BOGUS_IRQ },
+ { USB_VENDOR_ID_SYNAPTICS, I2C_DEVICE_ID_SYNAPTICS_7E7E,
+ I2C_HID_QUIRK_NO_RUNTIME_PM },
{ 0, 0 }
};