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path: root/drivers/cpufreq/cpufreq.c
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Diffstat (limited to 'drivers/cpufreq/cpufreq.c')
-rw-r--r--drivers/cpufreq/cpufreq.c26
1 files changed, 15 insertions, 11 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index e93405f0eac4..c4acfc5273b3 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1557,21 +1557,25 @@ void cpufreq_suspend(void)
1557 if (!cpufreq_driver) 1557 if (!cpufreq_driver)
1558 return; 1558 return;
1559 1559
1560 if (!has_target()) 1560 if (!has_target() && !cpufreq_driver->suspend)
1561 goto suspend; 1561 goto suspend;
1562 1562
1563 pr_debug("%s: Suspending Governors\n", __func__); 1563 pr_debug("%s: Suspending Governors\n", __func__);
1564 1564
1565 for_each_active_policy(policy) { 1565 for_each_active_policy(policy) {
1566 down_write(&policy->rwsem); 1566 if (has_target()) {
1567 ret = cpufreq_governor(policy, CPUFREQ_GOV_STOP); 1567 down_write(&policy->rwsem);
1568 up_write(&policy->rwsem); 1568 ret = cpufreq_governor(policy, CPUFREQ_GOV_STOP);
1569 up_write(&policy->rwsem);
1569 1570
1570 if (ret) 1571 if (ret) {
1571 pr_err("%s: Failed to stop governor for policy: %p\n", 1572 pr_err("%s: Failed to stop governor for policy: %p\n",
1572 __func__, policy); 1573 __func__, policy);
1573 else if (cpufreq_driver->suspend 1574 continue;
1574 && cpufreq_driver->suspend(policy)) 1575 }
1576 }
1577
1578 if (cpufreq_driver->suspend && cpufreq_driver->suspend(policy))
1575 pr_err("%s: Failed to suspend driver: %p\n", __func__, 1579 pr_err("%s: Failed to suspend driver: %p\n", __func__,
1576 policy); 1580 policy);
1577 } 1581 }
@@ -1596,7 +1600,7 @@ void cpufreq_resume(void)
1596 1600
1597 cpufreq_suspended = false; 1601 cpufreq_suspended = false;
1598 1602
1599 if (!has_target()) 1603 if (!has_target() && !cpufreq_driver->resume)
1600 return; 1604 return;
1601 1605
1602 pr_debug("%s: Resuming Governors\n", __func__); 1606 pr_debug("%s: Resuming Governors\n", __func__);
@@ -1605,7 +1609,7 @@ void cpufreq_resume(void)
1605 if (cpufreq_driver->resume && cpufreq_driver->resume(policy)) { 1609 if (cpufreq_driver->resume && cpufreq_driver->resume(policy)) {
1606 pr_err("%s: Failed to resume driver: %p\n", __func__, 1610 pr_err("%s: Failed to resume driver: %p\n", __func__,
1607 policy); 1611 policy);
1608 } else { 1612 } else if (has_target()) {
1609 down_write(&policy->rwsem); 1613 down_write(&policy->rwsem);
1610 ret = cpufreq_start_governor(policy); 1614 ret = cpufreq_start_governor(policy);
1611 up_write(&policy->rwsem); 1615 up_write(&policy->rwsem);