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gpio: realtek-otto: fix GPIO line IRQ offset 

[ Upstream commit 585a07079909ba9061ddd88214c36653e1aef71a ]

The irqchip uses one domain for all GPIO lines, so the line offset
should be determined w.r.t. the first line of the first port, not the
first line of the triggered port.

Fixes: 0d82fb1127 ("gpio: Add Realtek Otto GPIO support")
Signed-off-by: Sander Vanheule <sander@svanheule.net>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Sander Vanheule 2021-10-28 10:52:43 +02:00 committed by Greg Kroah-Hartman
parent 01e189372d
commit db651ace49
1 changed files with 1 additions and 1 deletions
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2
drivers/gpio/gpio-realtek-otto.c
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@ -205,7 +205,7 @@ static void realtek_gpio_irq_handler(struct irq_desc *desc)
status = realtek_gpio_read_isr(ctrl, lines_done / 8);
port_pin_count = min(gc->ngpio - lines_done, 8U);
for_each_set_bit(offset, &status, port_pin_count)
generic_handle_domain_irq(gc->irq.domain, offset);
generic_handle_domain_irq(gc->irq.domain, offset + lines_done);
}
chained_irq_exit(irq_chip, desc);