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path: root/drivers/base/power/main.c
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Diffstat (limited to 'drivers/base/power/main.c')
-rw-r--r--drivers/base/power/main.c20
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 9717d5f20139..3d874eca7104 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -23,7 +23,7 @@
23#include <linux/mutex.h> 23#include <linux/mutex.h>
24#include <linux/pm.h> 24#include <linux/pm.h>
25#include <linux/pm_runtime.h> 25#include <linux/pm_runtime.h>
26#include <linux/resume-trace.h> 26#include <linux/pm-trace.h>
27#include <linux/interrupt.h> 27#include <linux/interrupt.h>
28#include <linux/sched.h> 28#include <linux/sched.h>
29#include <linux/async.h> 29#include <linux/async.h>
@@ -1017,6 +1017,9 @@ static int __device_suspend_noirq(struct device *dev, pm_message_t state, bool a
1017 char *info = NULL; 1017 char *info = NULL;
1018 int error = 0; 1018 int error = 0;
1019 1019
1020 TRACE_DEVICE(dev);
1021 TRACE_SUSPEND(0);
1022
1020 if (async_error) 1023 if (async_error)
1021 goto Complete; 1024 goto Complete;
1022 1025
@@ -1057,6 +1060,7 @@ static int __device_suspend_noirq(struct device *dev, pm_message_t state, bool a
1057 1060
1058Complete: 1061Complete:
1059 complete_all(&dev->power.completion); 1062 complete_all(&dev->power.completion);
1063 TRACE_SUSPEND(error);
1060 return error; 1064 return error;
1061} 1065}
1062 1066
@@ -1078,7 +1082,7 @@ static int device_suspend_noirq(struct device *dev)
1078{ 1082{
1079 reinit_completion(&dev->power.completion); 1083 reinit_completion(&dev->power.completion);
1080 1084
1081 if (pm_async_enabled && dev->power.async_suspend) { 1085 if (is_async(dev)) {
1082 get_device(dev); 1086 get_device(dev);
1083 async_schedule(async_suspend_noirq, dev); 1087 async_schedule(async_suspend_noirq, dev);
1084 return 0; 1088 return 0;
@@ -1157,6 +1161,9 @@ static int __device_suspend_late(struct device *dev, pm_message_t state, bool as
1157 char *info = NULL; 1161 char *info = NULL;
1158 int error = 0; 1162 int error = 0;
1159 1163
1164 TRACE_DEVICE(dev);
1165 TRACE_SUSPEND(0);
1166
1160 __pm_runtime_disable(dev, false); 1167 __pm_runtime_disable(dev, false);
1161 1168
1162 if (async_error) 1169 if (async_error)
@@ -1198,6 +1205,7 @@ static int __device_suspend_late(struct device *dev, pm_message_t state, bool as
1198 async_error = error; 1205 async_error = error;
1199 1206
1200Complete: 1207Complete:
1208 TRACE_SUSPEND(error);
1201 complete_all(&dev->power.completion); 1209 complete_all(&dev->power.completion);
1202 return error; 1210 return error;
1203} 1211}
@@ -1219,7 +1227,7 @@ static int device_suspend_late(struct device *dev)
1219{ 1227{
1220 reinit_completion(&dev->power.completion); 1228 reinit_completion(&dev->power.completion);
1221 1229
1222 if (pm_async_enabled && dev->power.async_suspend) { 1230 if (is_async(dev)) {
1223 get_device(dev); 1231 get_device(dev);
1224 async_schedule(async_suspend_late, dev); 1232 async_schedule(async_suspend_late, dev);
1225 return 0; 1233 return 0;
@@ -1338,6 +1346,9 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async)
1338 int error = 0; 1346 int error = 0;
1339 DECLARE_DPM_WATCHDOG_ON_STACK(wd); 1347 DECLARE_DPM_WATCHDOG_ON_STACK(wd);
1340 1348
1349 TRACE_DEVICE(dev);
1350 TRACE_SUSPEND(0);
1351
1341 dpm_wait_for_children(dev, async); 1352 dpm_wait_for_children(dev, async);
1342 1353
1343 if (async_error) 1354 if (async_error)
@@ -1444,6 +1455,7 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async)
1444 if (error) 1455 if (error)
1445 async_error = error; 1456 async_error = error;
1446 1457
1458 TRACE_SUSPEND(error);
1447 return error; 1459 return error;
1448} 1460}
1449 1461
@@ -1465,7 +1477,7 @@ static int device_suspend(struct device *dev)
1465{ 1477{
1466 reinit_completion(&dev->power.completion); 1478 reinit_completion(&dev->power.completion);
1467 1479
1468 if (pm_async_enabled && dev->power.async_suspend) { 1480 if (is_async(dev)) {
1469 get_device(dev); 1481 get_device(dev);
1470 async_schedule(async_suspend, dev); 1482 async_schedule(async_suspend, dev);
1471 return 0; 1483 return 0;