hid: cp2112: Fix IRQ shutdown stopping polling for all IRQs on chip

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Previously cp2112_gpio_irq_shutdown() always cancelled the
gpio_poll_worker, even if other IRQs were still active, and did not set
the gpio_poll flag to false. This resulted in any call to _shutdown()
resulting in interrupts no longer functioning on the chip until a
_remove() occurred (a.e. the cp2112 is unplugged or system rebooted).

Only cancel polling if all IRQs are disabled/masked, and correctly set
the gpio_poll flag, allowing polling to restart when an interrupt is
next enabled.

Signed-off-by: Danny Kaehn <danny.kaehn@plexus.com>
Fixes: 13de9cca51 ("HID: cp2112: add IRQ chip handling")
Link: https://lore.kernel.org/r/20231011182317.1053344-1-danny.kaehn@plexus.com
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>

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Danny Kaehn 2023-10-11 13:23:17 -05:00 • committed by Benjamin Tissoires

parent e3c2d2d144

commit dc3115e6c5

1 changed files with 5 additions and 1 deletions

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drivers/hid/hid-cp2112.c

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