| Message ID | 20190329061323.9597-1-hui.wang@canonical.com (mailing list archive) |
|---|---|
| State | Mainlined |
| Commit | 74e7c6c877f620d65a8269692d089bbd066f626c |
| Delegated to: | Jiri Kosina |
| Headers | show |
| Series | HID: i2c-hid: Disable runtime PM on Synaptics touchpad | expand |
On Fri, 29 Mar 2019, Hui Wang wrote: > 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. Applied, thanks.
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index b6d93f4ad037..adce58f24f76 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -1083,6 +1083,7 @@ #define USB_DEVICE_ID_SYNAPTICS_HD 0x0ac3 #define USB_DEVICE_ID_SYNAPTICS_QUAD_HD 0x1ac3 #define USB_DEVICE_ID_SYNAPTICS_TP_V103 0x5710 +#define I2C_DEVICE_ID_SYNAPTICS_7E7E 0x7e7e #define USB_VENDOR_ID_TEXAS_INSTRUMENTS 0x2047 #define USB_DEVICE_ID_TEXAS_INSTRUMENTS_LENOVO_YOGA 0x0855 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 } };
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> --- drivers/hid/hid-ids.h | 1 + drivers/hid/i2c-hid/i2c-hid-core.c | 2 ++ 2 files changed, 3 insertions(+)