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-rw-r--r--drivers/acpi/ec.c39
-rw-r--r--drivers/acpi/internal.h4
-rw-r--r--drivers/acpi/numa.c2
-rw-r--r--drivers/acpi/sleep.c6
-rw-r--r--include/acpi/acpi_numa.h1
5 files changed, 48 insertions, 4 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index ddb01e9fa5b2..62068a5e814f 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -151,6 +151,10 @@ static bool ec_freeze_events __read_mostly = false;
module_param(ec_freeze_events, bool, 0644);
MODULE_PARM_DESC(ec_freeze_events, "Disabling event handling during suspend/resume");
+static bool ec_no_wakeup __read_mostly;
+module_param(ec_no_wakeup, bool, 0644);
+MODULE_PARM_DESC(ec_no_wakeup, "Do not wake up from suspend-to-idle");
+
struct acpi_ec_query_handler {
struct list_head node;
acpi_ec_query_func func;
@@ -535,6 +539,14 @@ static void acpi_ec_disable_event(struct acpi_ec *ec)
spin_unlock_irqrestore(&ec->lock, flags);
__acpi_ec_flush_event(ec);
}
+
+void acpi_ec_flush_work(void)
+{
+ if (first_ec)
+ __acpi_ec_flush_event(first_ec);
+
+ flush_scheduled_work();
+}
#endif /* CONFIG_PM_SLEEP */
static bool acpi_ec_guard_event(struct acpi_ec *ec)
@@ -1880,6 +1892,32 @@ static int acpi_ec_suspend(struct device *dev)
return 0;
}
+static int acpi_ec_suspend_noirq(struct device *dev)
+{
+ struct acpi_ec *ec = acpi_driver_data(to_acpi_device(dev));
+
+ /*
+ * The SCI handler doesn't run at this point, so the GPE can be
+ * masked at the low level without side effects.
+ */
+ if (ec_no_wakeup && test_bit(EC_FLAGS_STARTED, &ec->flags) &&
+ ec->reference_count >= 1)
+ acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_DISABLE);
+
+ return 0;
+}
+
+static int acpi_ec_resume_noirq(struct device *dev)
+{
+ struct acpi_ec *ec = acpi_driver_data(to_acpi_device(dev));
+
+ if (ec_no_wakeup && test_bit(EC_FLAGS_STARTED, &ec->flags) &&
+ ec->reference_count >= 1)
+ acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_ENABLE);
+
+ return 0;
+}
+
static int acpi_ec_resume(struct device *dev)
{
struct acpi_ec *ec =
@@ -1891,6 +1929,7 @@ static int acpi_ec_resume(struct device *dev)
#endif
static const struct dev_pm_ops acpi_ec_pm = {
+ SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(acpi_ec_suspend_noirq, acpi_ec_resume_noirq)
SET_SYSTEM_SLEEP_PM_OPS(acpi_ec_suspend, acpi_ec_resume)
};
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 9531d3276f65..58dd7ab3c653 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -193,6 +193,10 @@ int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
void *data);
void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit);
+#ifdef CONFIG_PM_SLEEP
+void acpi_ec_flush_work(void);
+#endif
+
/*--------------------------------------------------------------------------
Suspend/Resume
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index edb0c79f7c64..917f1cc0fda4 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -443,7 +443,7 @@ int __init acpi_numa_init(void)
* So go over all cpu entries in SRAT to get apicid to node mapping.
*/
- /* SRAT: Static Resource Affinity Table */
+ /* SRAT: System Resource Affinity Table */
if (!acpi_table_parse(ACPI_SIG_SRAT, acpi_parse_srat)) {
struct acpi_subtable_proc srat_proc[3];
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index be17664736b2..fa8243c5c062 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -777,11 +777,11 @@ static void acpi_freeze_sync(void)
/*
* Process all pending events in case there are any wakeup ones.
*
- * The EC driver uses the system workqueue, so that one needs to be
- * flushed too.
+ * The EC driver uses the system workqueue and an additional special
+ * one, so those need to be flushed too.
*/
+ acpi_ec_flush_work();
acpi_os_wait_events_complete();
- flush_scheduled_work();
s2idle_wakeup = false;
}
diff --git a/include/acpi/acpi_numa.h b/include/acpi/acpi_numa.h
index d4b72944ccda..1e3a74f94131 100644
--- a/include/acpi/acpi_numa.h
+++ b/include/acpi/acpi_numa.h
@@ -3,6 +3,7 @@
#ifdef CONFIG_ACPI_NUMA
#include <linux/kernel.h>
+#include <linux/numa.h>
/* Proximity bitmap length */
#if MAX_NUMNODES > 256