target/linux/realtek/patches-5.15/007-5.16-gpio-realtek-realtek-otto-fix-gpio-line-irq-offset.patch

   1 From: Sander Vanheule <sander@svanheule.net>
   2 Subject: gpio: realtek-otto: fix GPIO line IRQ offset
   3
   4 The irqchip uses one domain for all GPIO lines, so th line offset should be
   5 determined w.r.t. the first line of the first port, not the first line of the
   6 triggered port.
   7
   8 Fixes: 0d82fb1127fb ("gpio: Add Realtek Otto GPIO support")
   9 Signed-off-by: Sander Vanheule <sander@svanheule.net>
  10 Link: https://lore.kernel.org/linux-gpio/20211028085243.34360-1-sander@svanheule.net/
  11
  12 --- a/drivers/gpio/gpio-realtek-otto.c
  13 +++ b/drivers/gpio/gpio-realtek-otto.c
  14 @@ -206,7 +206,7 @@ static void realtek_gpio_irq_handler(str
  15                 status = realtek_gpio_read_isr(ctrl, lines_done / 8);
  16                 port_pin_count = min(gc->ngpio - lines_done, 8U);
  17                 for_each_set_bit(offset, &status, port_pin_count) {
  18 -                       irq = irq_find_mapping(gc->irq.domain, offset);
  19 +                       irq = irq_find_mapping(gc->irq.domain, offset + lines_done);
  20                         generic_handle_irq(irq);
  21                 }
  22         }