openwrt/target/linux/realtek/patches-5.10/007-5.16-gpio-realtek-realtek-otto-fix-gpio-line-irq-offset.patch
Olliver Schinagl f1f97db627
realtek: Convert incorrect v5.10 patches
OpenWRT's developer guide prefers having actual patches so they an be
sent upstream more easily.

However, in this case, Adding proper fields also allows for `git am` to
properly function. Some of these patches are quite old, and lack much
traceable history.

This commit tries to rectify that, by digging in the history to find
where and how it was first added.

It is by no means perfect and also shows some patches that should have
been long gone.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
2022-10-01 02:47:57 +02:00

23 lines
931 B
Diff

From: Sander Vanheule <sander@svanheule.net>
Subject: gpio: realtek-otto: fix GPIO line IRQ offset
The irqchip uses one domain for all GPIO lines, so th 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@svanheule.net>
Link: https://lore.kernel.org/linux-gpio/20211028085243.34360-1-sander@svanheule.net/
--- a/drivers/gpio/gpio-realtek-otto.c
+++ b/drivers/gpio/gpio-realtek-otto.c
@@ -206,7 +206,7 @@ static void realtek_gpio_irq_handler(str
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) {
- irq = irq_find_mapping(gc->irq.domain, offset);
+ irq = irq_find_mapping(gc->irq.domain, offset + lines_done);
generic_handle_irq(irq);
}
}