ACPI: EC: Use a threaded handler for dedicated IRQ

rafaeljw · rafaeljw · commit 655a6e7c0d83 · 2023-12-28T14:13:52.000+01:00
After commit 7a36b90 ("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>
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
@@ -1458,8 +1458,8 @@ static bool install_gpe_event_handler(struct acpi_ec *ec)
 
 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;
 }
 
 /**

Original file line number	Diff line number	Diff line change
`@@ -1458,8 +1458,8 @@ static bool install_gpe_event_handler(struct acpi_ec *ec)`
`1458`	`1458`
`1459`	`1459`	`static bool install_gpio_irq_event_handler(struct acpi_ec *ec)`
`1460`	`1460`	`{`
`1461`		`- return request_irq(ec->irq, acpi_ec_irq_handler, IRQF_SHARED,`
`1462`		`- "ACPI EC", ec) >= 0;`
	`1461`	`+ return request_threaded_irq(ec->irq, NULL, acpi_ec_irq_handler,`
	`1462`	`+ IRQF_SHARED \| IRQF_ONESHOT, "ACPI EC", ec) >= 0;`
`1463`	`1463`	`}`
`1464`	`1464`
`1465`	`1465`	`/**`