From: Zhang Rui <rui.zhang@intel.com>
To: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
linux-acpi@vger.kernel.org, intel-gfx@lists.freedesktop.org
Cc: rjw@sisk.pl, lenb@kernel.org, Zhang Rui <rui.zhang@intel.com>
Subject: [PATCH V2 2/3] ACPI: enable ACPI SCI during suspend
Date: Mon, 4 Feb 2013 15:10:10 +0800 [thread overview]
Message-ID: <1359961811-978-2-git-send-email-rui.zhang@intel.com> (raw)
In-Reply-To: <1359961811-978-1-git-send-email-rui.zhang@intel.com>
Enable ACPI SCI during suspend so that SCI can be used
as wake events for PM_SUSPEND_FREEZE.
For S3/S4 transition,
We disable all GPEs in suspend_ops->prepare_late() to
fix a problem that GPEs may trigger SCI before
arch_suspend_disable_irqs() is run.
So it is safe to leave the SCI enabled until
arch_suspend_irq_disable() is run.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
---
drivers/acpi/osl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 3ff2678..3adeb10 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -787,7 +787,7 @@ acpi_os_install_interrupt_handler(u32 gsi, acpi_osd_handler handler,
acpi_irq_handler = handler;
acpi_irq_context = context;
- if (request_irq(irq, acpi_irq, IRQF_SHARED, "acpi", acpi_irq)) {
+ if (request_irq(irq, acpi_irq, IRQF_SHARED | IRQF_NO_SUSPEND, "acpi", acpi_irq)) {
printk(KERN_ERR PREFIX "SCI (IRQ%d) allocation failed\n", irq);
acpi_irq_handler = NULL;
return AE_NOT_ACQUIRED;
--
1.7.9.5
next prev parent reply other threads:[~2013-02-04 7:10 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-04 7:10 [PATCH V2 1/3] PM: Introduce suspend state PM_SUSPEND_FREEZE Zhang Rui
2013-02-04 7:10 ` Zhang Rui [this message]
2013-02-04 7:10 ` [PATCH V2 3/3] i915: ignore lid open event when resuming Zhang Rui
2013-02-04 15:25 ` Daniel Vetter
2013-02-04 15:25 ` [Intel-gfx] " Daniel Vetter
2013-02-04 23:58 ` Zhang Rui
2013-02-05 7:41 ` Zhang Rui
2013-02-05 10:07 ` Daniel Vetter
2013-02-05 10:07 ` [Intel-gfx] " Daniel Vetter
2013-02-05 10:14 ` Rafael J. Wysocki
2013-02-05 12:35 ` Zhang Rui
2013-02-05 12:34 ` Zhang Rui
2013-02-06 1:11 ` [PATCH V2 1/3] PM: Introduce suspend state PM_SUSPEND_FREEZE Zhang Rui
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