From: José Expósito jose.exposito89@gmail.com
stable inclusion from stable-v5.10.110 commit b75198eddab164931f5540fc60cee9694e615b17 bugzilla: https://gitee.com/openeuler/kernel/issues/I574AL
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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commit 8b188fba75195745026e11d408e4a7e94e01d701 upstream.
This reverts commit 37ef4c19b4c659926ce65a7ac709ceaefb211c40.
The touchpad present in the Dell Precision 7550 and 7750 laptops reports a HID_DG_BUTTONTYPE of type MT_BUTTONTYPE_CLICKPAD. However, the device is not a clickpad, it is a touchpad with physical buttons.
In order to fix this issue, a quirk for the device was introduced in libinput [1] [2] to disable the INPUT_PROP_BUTTONPAD property:
[Precision 7x50 Touchpad] MatchBus=i2c MatchUdevType=touchpad MatchDMIModalias=dmi:*svnDellInc.:pnPrecision7?50* AttrInputPropDisable=INPUT_PROP_BUTTONPAD
However, because of the change introduced in 37ef4c19b4 ("Input: clear BTN_RIGHT/MIDDLE on buttonpads") the BTN_RIGHT key bit is not mapped anymore breaking the device right click button and making impossible to workaround it in user space.
In order to avoid breakage on other present or future devices, revert the patch causing the issue.
Signed-off-by: José Expósito jose.exposito89@gmail.com Reviewed-by: Hans de Goede hdegoede@redhat.com Acked-by: Peter Hutterer peter.hutterer@who-t.net Acked-by: Benjamin Tissoires benjamin.tissoires@redhat.com Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20220321184404.20025-1-jose.exposito89@gmail.com Signed-off-by: Dmitry Torokhov dmitry.torokhov@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yu Liao liaoyu15@huawei.com Reviewed-by: Wei Li liwei391@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- drivers/input/input.c | 6 ------ 1 file changed, 6 deletions(-)
diff --git a/drivers/input/input.c b/drivers/input/input.c index 5f6404d9e24f..cf6f557428c0 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -2182,12 +2182,6 @@ int input_register_device(struct input_dev *dev) /* KEY_RESERVED is not supposed to be transmitted to userspace. */ __clear_bit(KEY_RESERVED, dev->keybit);
- /* Buttonpads should not map BTN_RIGHT and/or BTN_MIDDLE. */ - if (test_bit(INPUT_PROP_BUTTONPAD, dev->propbit)) { - __clear_bit(BTN_RIGHT, dev->keybit); - __clear_bit(BTN_MIDDLE, dev->keybit); - } - /* Make sure that bitmasks not mentioned in dev->evbit are clean. */ input_cleanse_bitmasks(dev);