[PATCH v5 0/2] gpio: sch: Interrupt support

From: Andy Shevchenko
Date: Wed Mar 17 2021 - 11:55:59 EST

The series adds event support to the Intel GPIO SCH driver. The hardware
routes all events through GPE0 GPIO event.

I validated this on Intel Minnowboard (v1).

If somebody has different hardware with the same GPIO controller, I would
appreciate additional testing.

Changes in v5:
- added missed IRQ acknowledge callback (hence kernel Oops)
- rewrite patch 2 completely from SCI to GPE hook

Changes in v4 (https://lore.kernel.org/linux-gpio/20210316162613.87710-1-andriy.shevchenko@xxxxxxxxxxxxxxx/T/#u):
- turned to GPIO core infrastructure of IRQ chip instantiation (Linus)
- converted IRQ callbacks to use better APIs
- use handle_bad_irq() as default handler and now I know why, see
eb441337c714 ("gpio: pca953x: Set IRQ type when handle Intel Galileo Gen 2")
for the real example what happens if it's preset to something meaningful
- fixed remove stage (we have to remove SCI handler, which wasn't done in v3)

Changes in v3 (https://lore.kernel.org/linux-gpio/cover.1574277614.git.jan.kiszka@xxxxxxxxxxx/T/#u):
- split-up of the irq enabling patch as requested by Andy

Andy Shevchenko (1):
gpio: sch: Hook into ACPI GPE handler to catch GPIO edge events

Jan Kiszka (1):
gpio: sch: Add edge event support

drivers/gpio/gpio-sch.c | 196 ++++++++++++++++++++++++++++++++++++++--
1 file changed, 188 insertions(+), 8 deletions(-)