HID: i2c-hid: add reset quirk for BLTP7853 touchpad

The BLTP7853 I2C HID touchpad may fail to probe after reboot or
reprobe because reset completion is not signalled to the host. The
driver then waits for the reset-complete interrupt until it times out
and the device probe fails:

  i2c_hid i2c-BLTP7853:00: failed to reset device.
  i2c_hid i2c-BLTP7853:00: can't add hid device: -61
  i2c_hid: probe of i2c-BLTP7853:00 failed with error -61

Add I2C_HID_QUIRK_NO_IRQ_AFTER_RESET for the device so i2c-hid does
not wait for a reset interrupt that may never arrive.

Signed-off-by: Xu Rao <raoxu@uniontech.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 8cfec7dced6645e2e7b94d5637cca03c3bee718c..4657d96fb0836f10cca60ca22767874516f41533 100644 (file)
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -277,6 +277,9 @@
 #define USB_VENDOR_ID_BIGBEN   0x146b
 #define USB_DEVICE_ID_BIGBEN_PS3OFMINIPAD      0x0902
 
+#define I2C_VENDOR_ID_BLTP             0x36b6
+#define I2C_PRODUCT_ID_BLTP7853                0xc001
+
 #define USB_VENDOR_ID_BTC              0x046e
 #define USB_DEVICE_ID_BTC_EMPREX_REMOTE        0x5578
 #define USB_DEVICE_ID_BTC_EMPREX_REMOTE_2      0x5577

diff --git a/drivers/hid/i2c-hid/i2c-hid-core.c b/drivers/hid/i2c-hid/i2c-hid-core.c
index e0a302544cef4b032ee8251257fc49ee5b5abf77..3adb16366e93941118bf83d0fed3a98b75ed2524 100644 (file)
--- a/drivers/hid/i2c-hid/i2c-hid-core.c
+++ b/drivers/hid/i2c-hid/i2c-hid-core.c
@@ -149,6 +149,8 @@ static const struct i2c_hid_quirks {
                 I2C_HID_QUIRK_BOGUS_IRQ },
        { I2C_VENDOR_ID_GOODIX, I2C_DEVICE_ID_GOODIX_0D42,
                 I2C_HID_QUIRK_DELAY_WAKEUP_AFTER_RESUME },
+       { I2C_VENDOR_ID_BLTP, I2C_PRODUCT_ID_BLTP7853,
+               I2C_HID_QUIRK_NO_IRQ_AFTER_RESET },
        { 0, 0 }
 };