diff options
Diffstat (limited to 'drivers/hid/i2c-hid/i2c-hid-core.c')
| -rw-r--r-- | drivers/hid/i2c-hid/i2c-hid-core.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/hid/i2c-hid/i2c-hid-core.c b/drivers/hid/i2c-hid/i2c-hid-core.c index be5d342d5d13..43664a24176f 100644 --- a/drivers/hid/i2c-hid/i2c-hid-core.c +++ b/drivers/hid/i2c-hid/i2c-hid-core.c @@ -50,6 +50,7 @@ #define I2C_HID_QUIRK_BAD_INPUT_SIZE BIT(3) #define I2C_HID_QUIRK_NO_WAKEUP_AFTER_RESET BIT(4) #define I2C_HID_QUIRK_NO_SLEEP_ON_SUSPEND BIT(5) +#define I2C_HID_QUIRK_DELAY_WAKEUP_AFTER_RESUME BIT(6) /* Command opcodes */ #define I2C_HID_OPCODE_RESET 0x01 @@ -140,6 +141,8 @@ static const struct i2c_hid_quirks { { USB_VENDOR_ID_ELAN, HID_ANY_ID, I2C_HID_QUIRK_NO_WAKEUP_AFTER_RESET | I2C_HID_QUIRK_BOGUS_IRQ }, + { I2C_VENDOR_ID_GOODIX, I2C_DEVICE_ID_GOODIX_0D42, + I2C_HID_QUIRK_DELAY_WAKEUP_AFTER_RESUME }, { 0, 0 } }; @@ -981,6 +984,13 @@ static int i2c_hid_core_resume(struct i2c_hid *ihid) return -ENXIO; } + /* On Goodix 27c6:0d42 wait extra time before device wakeup. + * It's not clear why but if we send wakeup too early, the device will + * never trigger input interrupts. + */ + if (ihid->quirks & I2C_HID_QUIRK_DELAY_WAKEUP_AFTER_RESUME) + msleep(1500); + /* Instead of resetting device, simply powers the device on. This * solves "incomplete reports" on Raydium devices 2386:3118 and * 2386:4B33 and fixes various SIS touchscreens no longer sending |