[PATCH v1 2/3] ACPI: EC: Use a threaded handler for dedicated IRQ

Rafael J. Wysocki
2023-12-15T11:34:31Z

After commit 7a36b901a6eb ("ACPI: OSL: Use a threaded interrupt handler
for SCI") all of the EC code runs in thread context on all systems where
EC events are signaled through a GPE.

It may as well run in thread context on systems using a dedicated IRQ
for EC events signaling, so make it use a threaded handler for that IRQ.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
drivers/acpi/ec.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

Index: linux-pm/drivers/acpi/ec.c
===================================================================
--- linux-pm.orig/drivers/acpi/ec.c
+++ linux-pm/drivers/acpi/ec.c
@@ -1458,8 +1458,8 @@ static bool install_gpe_event_handler(st

static bool install_gpio_irq_event_handler(struct acpi_ec *ec)
{
- return request_irq(ec->irq, acpi_ec_irq_handler, IRQF_SHARED,
- "ACPI EC", ec) >= 0;
+ return request_threaded_irq(ec->irq, NULL, acpi_ec_irq_handler,
+ IRQF_SHARED | IRQF_ONESHOT, "ACPI EC", ec) >= 0;
}

/**