This is a note to let you know that I've just added the patch titled
gpio: realtek-otto: fix GPIO line IRQ offset
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
gpio-realtek-otto-fix-gpio-line-irq-offset.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit cd3633e561111bf4d473703aaaf6e5ddcb8d60e1
Author: Sander Vanheule <sander@xxxxxxxxxxxxx>
Date: Thu Oct 28 10:52:43 2021 +0200
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: 0d82fb1127fb ("gpio: Add Realtek Otto GPIO support")
Signed-off-by: Sander Vanheule <sander@xxxxxxxxxxxxx>
Signed-off-by: Bartosz Golaszewski <brgl@xxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpio/gpio-realtek-otto.c b/drivers/gpio/gpio-realtek-otto.c
index eeeb39bc171dc..bd75401b549d1 100644
--- a/drivers/gpio/gpio-realtek-otto.c
+++ b/drivers/gpio/gpio-realtek-otto.c
@@ -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);
