From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
Robert Moore <robert.moore@intel.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Zhang Rui <rui.zhang@intel.com>,
Linux PM list <linux-pm@vger.kernel.org>
Subject: [PATCH 4/5] ACPICA: Introduce acpi_enable_all_wakeup_gpes()
Date: Tue, 30 Sep 2014 02:25:42 +0200 [thread overview]
Message-ID: <4021848.ZWdxDcq97A@vostro.rjw.lan> (raw)
In-Reply-To: <1622293.rpSt5UtDk3@vostro.rjw.lan>
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add a routine for host OSes to enable all wakeup GPEs and disable
all of the non-wakeup ones at the same time.
It will be used for the handling of GPE wakeup from suspend-to-idle
in Linux.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
Bob, please let me know if I can fast-track this one.
---
drivers/acpi/acpica/evxfgpe.c | 32 ++++++++++++++++++++++++++++++++
include/acpi/acpixf.h | 1 +
2 files changed, 33 insertions(+)
Index: linux-pm/drivers/acpi/acpica/evxfgpe.c
===================================================================
--- linux-pm.orig/drivers/acpi/acpica/evxfgpe.c
+++ linux-pm/drivers/acpi/acpica/evxfgpe.c
@@ -596,6 +596,38 @@ acpi_status acpi_enable_all_runtime_gpes
ACPI_EXPORT_SYMBOL(acpi_enable_all_runtime_gpes)
+/******************************************************************************
+ *
+ * FUNCTION: acpi_enable_all_wakeup_gpes
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Enable all "wakeup" GPEs and disable all of the other GPEs, in
+ * all GPE blocks.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_enable_all_wakeup_gpes(void)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_enable_all_wakeup_gpes);
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ status = acpi_hw_enable_all_wakeup_gpes();
+ (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_enable_all_wakeup_gpes)
+
/*******************************************************************************
*
* FUNCTION: acpi_install_gpe_block
Index: linux-pm/include/acpi/acpixf.h
===================================================================
--- linux-pm.orig/include/acpi/acpixf.h
+++ linux-pm/include/acpi/acpixf.h
@@ -692,6 +692,7 @@ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_sta
*event_status))
ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_disable_all_gpes(void))
ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enable_all_runtime_gpes(void))
+ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enable_all_wakeup_gpes(void))
ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
acpi_get_gpe_device(u32 gpe_index,
next prev parent reply other threads:[~2014-09-30 0:09 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-30 0:20 [PATCH 0/5]: ACPI / PM: Rework wakeup GPE handling for suspend-to-idle Rafael J. Wysocki
2014-09-30 0:21 ` [PATCH 1/5] PM / sleep: Export dpm_suspend_late/noirq() and dpm_resume_early/noirq() Rafael J. Wysocki
2014-09-30 0:22 ` [PATCH 2/5] PM / sleep: Rename platform suspend/resume functions in suspend.c Rafael J. Wysocki
2014-09-30 0:24 ` [PATCH 3/5] ACPICA: Clear all non-wakeup GPEs in acpi_hw_enable_wakeup_gpe_block() Rafael J. Wysocki
2014-09-30 0:25 ` Rafael J. Wysocki [this message]
2014-09-30 15:52 ` [PATCH 4/5] ACPICA: Introduce acpi_enable_all_wakeup_gpes() Moore, Robert
2014-09-30 19:52 ` Rafael J. Wysocki
2014-09-30 0:29 ` [PATCH 5/5] ACPI / sleep: Rework the handling of ACPI GPE wakeup from suspend-to-idle Rafael J. Wysocki
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