diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/power/main.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/kernel/power/main.c b/kernel/power/main.c index 4d403323a7b..873228c71da 100644 --- a/kernel/power/main.c +++ b/kernel/power/main.c @@ -17,6 +17,7 @@ #include <linux/pm.h> #include <linux/console.h> #include <linux/cpu.h> +#include <linux/resume-trace.h> #include "power.h" @@ -281,10 +282,39 @@ static ssize_t state_store(struct subsystem * subsys, const char * buf, size_t n power_attr(state); +#ifdef CONFIG_PM_TRACE +int pm_trace_enabled; + +static ssize_t pm_trace_show(struct subsystem * subsys, char * buf) +{ + return sprintf(buf, "%d\n", pm_trace_enabled); +} + +static ssize_t +pm_trace_store(struct subsystem * subsys, const char * buf, size_t n) +{ + int val; + + if (sscanf(buf, "%d", &val) == 1) { + pm_trace_enabled = !!val; + return n; + } + return -EINVAL; +} + +power_attr(pm_trace); + +static struct attribute * g[] = { + &state_attr.attr, + &pm_trace_attr.attr, + NULL, +}; +#else static struct attribute * g[] = { &state_attr.attr, NULL, }; +#endif /* CONFIG_PM_TRACE */ static struct attribute_group attr_group = { .attrs = g, |