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authorSameer Nanda <snanda@chromium.org>2012-06-19 22:23:33 +0200
committerRafael J. Wysocki <rjw@sisk.pl>2012-07-01 13:31:22 +0200
commit4b7760ba0dd3319f66886ab2335a0fbecdbc808a (patch)
treef619ead7186c286a5f8c786091af8c46de0decf3 /drivers/base/power/main.c
parent443772d408a25af62498793f6f805ce3c559309a (diff)
PM / Sleep: add knob for printing device resume times
Added a new knob called /sys/power/pm_print_times. Setting it to 1 enables printing of time taken by devices to suspend and resume. Setting it to 0 disables this printing (unless overridden by initcall_debug kernel command line option). Signed-off-by: Sameer Nanda <snanda@chromium.org> Acked-by: Greg KH <gregkh@linuxfoundation.org> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'drivers/base/power/main.c')
-rw-r--r--drivers/base/power/main.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 9cb845e4933..6e4db96958d 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -166,7 +166,7 @@ static ktime_t initcall_debug_start(struct device *dev)
{
ktime_t calltime = ktime_set(0, 0);
- if (initcall_debug) {
+ if (pm_print_times) {
pr_info("calling %s+ @ %i, parent: %s\n",
dev_name(dev), task_pid_nr(current),
dev->parent ? dev_name(dev->parent) : "none");
@@ -181,7 +181,7 @@ static void initcall_debug_report(struct device *dev, ktime_t calltime,
{
ktime_t delta, rettime;
- if (initcall_debug) {
+ if (pm_print_times) {
rettime = ktime_get();
delta = ktime_sub(rettime, calltime);
pr_info("call %s+ returned %d after %Ld usecs\n", dev_name(dev),