From mboxrd@z Thu Jan 1 00:00:00 1970 From: Zhang Rui Subject: [RFC PATCH 2/3] ACPI: enable ACPI SCI during suspend Date: Sun, 27 Jan 2013 23:20:59 +0800 Message-ID: <1359300060-2967-2-git-send-email-rui.zhang@intel.com> References: <1359300060-2967-1-git-send-email-rui.zhang@intel.com> Return-path: In-Reply-To: <1359300060-2967-1-git-send-email-rui.zhang@intel.com> Sender: linux-acpi-owner@vger.kernel.org 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 List-Id: linux-pm@vger.kernel.org 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 --- 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