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/openbmc/linux/drivers/input/misc/ |
H A D | soc_button_array.c | 5c4fa2a6 Sat Jan 21 13:14:14 CST 2017 Hans de Goede <hdegoede@redhat.com> Input: soc_button_array - debounce the buttons
The soc_button_array driver was initializing (kzalloc) the debounce_interval value to 0, leading to no debouncing at all, while the buttons are simple mechanical switches.
This commit sets debounce_interval to 50ms to avoid spurious button press reports both on press and release of the button. Note 50ms may seem like a lot but soc_button_array is typically used with cheap tablets, with not so great buttons. I tried 10ms on my tablet and it is not enough, where as 50ms works well.
Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> 5c4fa2a6 Sat Jan 21 13:14:14 CST 2017 Hans de Goede <hdegoede@redhat.com> Input: soc_button_array - debounce the buttons The soc_button_array driver was initializing (kzalloc) the debounce_interval value to 0, leading to no debouncing at all, while the buttons are simple mechanical switches. This commit sets debounce_interval to 50ms to avoid spurious button press reports both on press and release of the button. Note 50ms may seem like a lot but soc_button_array is typically used with cheap tablets, with not so great buttons. I tried 10ms on my tablet and it is not enough, where as 50ms works well. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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