c735d2e218
Backport the patch queued upstream for 5.16. The patch differs slightly from the upstream patch due to an upstream change that added a convenience function. Signed-off-by: Sander Vanheule <sander@svanheule.net>
22 lines
877 B
Diff
22 lines
877 B
Diff
gpio: realtek-otto: fix GPIO line IRQ offset
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The irqchip uses one domain for all GPIO lines, so th line offset should be
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determined w.r.t. the first line of the first port, not the first line of the
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triggered port.
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Fixes: 0d82fb1127fb ("gpio: Add Realtek Otto GPIO support")
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Signed-off-by: Sander Vanheule <sander@svanheule.net>
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Link: https://lore.kernel.org/linux-gpio/20211028085243.34360-1-sander@svanheule.net/
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--- a/drivers/gpio/gpio-realtek-otto.c
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+++ b/drivers/gpio/gpio-realtek-otto.c
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@@ -206,7 +206,7 @@ static void realtek_gpio_irq_handler(str
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status = realtek_gpio_read_isr(ctrl, lines_done / 8);
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port_pin_count = min(gc->ngpio - lines_done, 8U);
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for_each_set_bit(offset, &status, port_pin_count) {
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- irq = irq_find_mapping(gc->irq.domain, offset);
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+ irq = irq_find_mapping(gc->irq.domain, offset + lines_done);
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generic_handle_irq(irq);
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}
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}
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