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path: root/drivers/base/power/sysfs.c
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Diffstat (limited to 'drivers/base/power/sysfs.c')
-rw-r--r--drivers/base/power/sysfs.c182
1 files changed, 79 insertions, 103 deletions
diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c
index e153e28b1857..0f651efc58a1 100644
--- a/drivers/base/power/sysfs.c
+++ b/drivers/base/power/sysfs.c
@@ -108,16 +108,10 @@ static ssize_t control_show(struct device *dev, struct device_attribute *attr,
static ssize_t control_store(struct device * dev, struct device_attribute *attr,
const char * buf, size_t n)
{
- char *cp;
- int len = n;
-
- cp = memchr(buf, '\n', n);
- if (cp)
- len = cp - buf;
device_lock(dev);
- if (len == sizeof ctrl_auto - 1 && strncmp(buf, ctrl_auto, len) == 0)
+ if (sysfs_streq(buf, ctrl_auto))
pm_runtime_allow(dev);
- else if (len == sizeof ctrl_on - 1 && strncmp(buf, ctrl_on, len) == 0)
+ else if (sysfs_streq(buf, ctrl_on))
pm_runtime_forbid(dev);
else
n = -EINVAL;
@@ -125,9 +119,9 @@ static ssize_t control_store(struct device * dev, struct device_attribute *attr,
return n;
}
-static DEVICE_ATTR(control, 0644, control_show, control_store);
+static DEVICE_ATTR_RW(control);
-static ssize_t rtpm_active_time_show(struct device *dev,
+static ssize_t runtime_active_time_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int ret;
@@ -138,9 +132,9 @@ static ssize_t rtpm_active_time_show(struct device *dev,
return ret;
}
-static DEVICE_ATTR(runtime_active_time, 0444, rtpm_active_time_show, NULL);
+static DEVICE_ATTR_RO(runtime_active_time);
-static ssize_t rtpm_suspended_time_show(struct device *dev,
+static ssize_t runtime_suspended_time_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int ret;
@@ -152,9 +146,9 @@ static ssize_t rtpm_suspended_time_show(struct device *dev,
return ret;
}
-static DEVICE_ATTR(runtime_suspended_time, 0444, rtpm_suspended_time_show, NULL);
+static DEVICE_ATTR_RO(runtime_suspended_time);
-static ssize_t rtpm_status_show(struct device *dev,
+static ssize_t runtime_status_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
const char *p;
@@ -184,7 +178,7 @@ static ssize_t rtpm_status_show(struct device *dev,
return sprintf(buf, p);
}
-static DEVICE_ATTR(runtime_status, 0444, rtpm_status_show, NULL);
+static DEVICE_ATTR_RO(runtime_status);
static ssize_t autosuspend_delay_ms_show(struct device *dev,
struct device_attribute *attr, char *buf)
@@ -211,26 +205,25 @@ static ssize_t autosuspend_delay_ms_store(struct device *dev,
return n;
}
-static DEVICE_ATTR(autosuspend_delay_ms, 0644, autosuspend_delay_ms_show,
- autosuspend_delay_ms_store);
+static DEVICE_ATTR_RW(autosuspend_delay_ms);
-static ssize_t pm_qos_resume_latency_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+static ssize_t pm_qos_resume_latency_us_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
{
s32 value = dev_pm_qos_requested_resume_latency(dev);
if (value == 0)
return sprintf(buf, "n/a\n");
- else if (value == PM_QOS_RESUME_LATENCY_NO_CONSTRAINT)
+ if (value == PM_QOS_RESUME_LATENCY_NO_CONSTRAINT)
value = 0;
return sprintf(buf, "%d\n", value);
}
-static ssize_t pm_qos_resume_latency_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t n)
+static ssize_t pm_qos_resume_latency_us_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t n)
{
s32 value;
int ret;
@@ -245,7 +238,7 @@ static ssize_t pm_qos_resume_latency_store(struct device *dev,
if (value == 0)
value = PM_QOS_RESUME_LATENCY_NO_CONSTRAINT;
- } else if (!strcmp(buf, "n/a") || !strcmp(buf, "n/a\n")) {
+ } else if (sysfs_streq(buf, "n/a")) {
value = 0;
} else {
return -EINVAL;
@@ -256,26 +249,25 @@ static ssize_t pm_qos_resume_latency_store(struct device *dev,
return ret < 0 ? ret : n;
}
-static DEVICE_ATTR(pm_qos_resume_latency_us, 0644,
- pm_qos_resume_latency_show, pm_qos_resume_latency_store);
+static DEVICE_ATTR_RW(pm_qos_resume_latency_us);
-static ssize_t pm_qos_latency_tolerance_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+static ssize_t pm_qos_latency_tolerance_us_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
{
s32 value = dev_pm_qos_get_user_latency_tolerance(dev);
if (value < 0)
return sprintf(buf, "auto\n");
- else if (value == PM_QOS_LATENCY_ANY)
+ if (value == PM_QOS_LATENCY_ANY)
return sprintf(buf, "any\n");
return sprintf(buf, "%d\n", value);
}
-static ssize_t pm_qos_latency_tolerance_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t n)
+static ssize_t pm_qos_latency_tolerance_us_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t n)
{
s32 value;
int ret;
@@ -285,9 +277,9 @@ static ssize_t pm_qos_latency_tolerance_store(struct device *dev,
if (value < 0)
return -EINVAL;
} else {
- if (!strcmp(buf, "auto") || !strcmp(buf, "auto\n"))
+ if (sysfs_streq(buf, "auto"))
value = PM_QOS_LATENCY_TOLERANCE_NO_CONSTRAINT;
- else if (!strcmp(buf, "any") || !strcmp(buf, "any\n"))
+ else if (sysfs_streq(buf, "any"))
value = PM_QOS_LATENCY_ANY;
else
return -EINVAL;
@@ -296,8 +288,7 @@ static ssize_t pm_qos_latency_tolerance_store(struct device *dev,
return ret < 0 ? ret : n;
}
-static DEVICE_ATTR(pm_qos_latency_tolerance_us, 0644,
- pm_qos_latency_tolerance_show, pm_qos_latency_tolerance_store);
+static DEVICE_ATTR_RW(pm_qos_latency_tolerance_us);
static ssize_t pm_qos_no_power_off_show(struct device *dev,
struct device_attribute *attr,
@@ -323,49 +314,39 @@ static ssize_t pm_qos_no_power_off_store(struct device *dev,
return ret < 0 ? ret : n;
}
-static DEVICE_ATTR(pm_qos_no_power_off, 0644,
- pm_qos_no_power_off_show, pm_qos_no_power_off_store);
+static DEVICE_ATTR_RW(pm_qos_no_power_off);
#ifdef CONFIG_PM_SLEEP
static const char _enabled[] = "enabled";
static const char _disabled[] = "disabled";
-static ssize_t
-wake_show(struct device * dev, struct device_attribute *attr, char * buf)
+static ssize_t wakeup_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
return sprintf(buf, "%s\n", device_can_wakeup(dev)
? (device_may_wakeup(dev) ? _enabled : _disabled)
: "");
}
-static ssize_t
-wake_store(struct device * dev, struct device_attribute *attr,
- const char * buf, size_t n)
+static ssize_t wakeup_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t n)
{
- char *cp;
- int len = n;
-
if (!device_can_wakeup(dev))
return -EINVAL;
- cp = memchr(buf, '\n', n);
- if (cp)
- len = cp - buf;
- if (len == sizeof _enabled - 1
- && strncmp(buf, _enabled, sizeof _enabled - 1) == 0)
+ if (sysfs_streq(buf, _enabled))
device_set_wakeup_enable(dev, 1);
- else if (len == sizeof _disabled - 1
- && strncmp(buf, _disabled, sizeof _disabled - 1) == 0)
+ else if (sysfs_streq(buf, _disabled))
device_set_wakeup_enable(dev, 0);
else
return -EINVAL;
return n;
}
-static DEVICE_ATTR(wakeup, 0644, wake_show, wake_store);
+static DEVICE_ATTR_RW(wakeup);
static ssize_t wakeup_count_show(struct device *dev,
- struct device_attribute *attr, char *buf)
+ struct device_attribute *attr, char *buf)
{
unsigned long count = 0;
bool enabled = false;
@@ -379,10 +360,11 @@ static ssize_t wakeup_count_show(struct device *dev,
return enabled ? sprintf(buf, "%lu\n", count) : sprintf(buf, "\n");
}
-static DEVICE_ATTR(wakeup_count, 0444, wakeup_count_show, NULL);
+static DEVICE_ATTR_RO(wakeup_count);
static ssize_t wakeup_active_count_show(struct device *dev,
- struct device_attribute *attr, char *buf)
+ struct device_attribute *attr,
+ char *buf)
{
unsigned long count = 0;
bool enabled = false;
@@ -396,11 +378,11 @@ static ssize_t wakeup_active_count_show(struct device *dev,
return enabled ? sprintf(buf, "%lu\n", count) : sprintf(buf, "\n");
}
-static DEVICE_ATTR(wakeup_active_count, 0444, wakeup_active_count_show, NULL);
+static DEVICE_ATTR_RO(wakeup_active_count);
static ssize_t wakeup_abort_count_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+ struct device_attribute *attr,
+ char *buf)
{
unsigned long count = 0;
bool enabled = false;
@@ -414,7 +396,7 @@ static ssize_t wakeup_abort_count_show(struct device *dev,
return enabled ? sprintf(buf, "%lu\n", count) : sprintf(buf, "\n");
}
-static DEVICE_ATTR(wakeup_abort_count, 0444, wakeup_abort_count_show, NULL);
+static DEVICE_ATTR_RO(wakeup_abort_count);
static ssize_t wakeup_expire_count_show(struct device *dev,
struct device_attribute *attr,
@@ -432,10 +414,10 @@ static ssize_t wakeup_expire_count_show(struct device *dev,
return enabled ? sprintf(buf, "%lu\n", count) : sprintf(buf, "\n");
}
-static DEVICE_ATTR(wakeup_expire_count, 0444, wakeup_expire_count_show, NULL);
+static DEVICE_ATTR_RO(wakeup_expire_count);
static ssize_t wakeup_active_show(struct device *dev,
- struct device_attribute *attr, char *buf)
+ struct device_attribute *attr, char *buf)
{
unsigned int active = 0;
bool enabled = false;
@@ -449,10 +431,11 @@ static ssize_t wakeup_active_show(struct device *dev,
return enabled ? sprintf(buf, "%u\n", active) : sprintf(buf, "\n");
}
-static DEVICE_ATTR(wakeup_active, 0444, wakeup_active_show, NULL);
+static DEVICE_ATTR_RO(wakeup_active);
-static ssize_t wakeup_total_time_show(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t wakeup_total_time_ms_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
{
s64 msec = 0;
bool enabled = false;
@@ -466,10 +449,10 @@ static ssize_t wakeup_total_time_show(struct device *dev,
return enabled ? sprintf(buf, "%lld\n", msec) : sprintf(buf, "\n");
}
-static DEVICE_ATTR(wakeup_total_time_ms, 0444, wakeup_total_time_show, NULL);
+static DEVICE_ATTR_RO(wakeup_total_time_ms);
-static ssize_t wakeup_max_time_show(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t wakeup_max_time_ms_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
s64 msec = 0;
bool enabled = false;
@@ -483,10 +466,11 @@ static ssize_t wakeup_max_time_show(struct device *dev,
return enabled ? sprintf(buf, "%lld\n", msec) : sprintf(buf, "\n");
}
-static DEVICE_ATTR(wakeup_max_time_ms, 0444, wakeup_max_time_show, NULL);
+static DEVICE_ATTR_RO(wakeup_max_time_ms);
-static ssize_t wakeup_last_time_show(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t wakeup_last_time_ms_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
{
s64 msec = 0;
bool enabled = false;
@@ -500,12 +484,12 @@ static ssize_t wakeup_last_time_show(struct device *dev,
return enabled ? sprintf(buf, "%lld\n", msec) : sprintf(buf, "\n");
}
-static DEVICE_ATTR(wakeup_last_time_ms, 0444, wakeup_last_time_show, NULL);
+static DEVICE_ATTR_RO(wakeup_last_time_ms);
#ifdef CONFIG_PM_AUTOSLEEP
-static ssize_t wakeup_prevent_sleep_time_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+static ssize_t wakeup_prevent_sleep_time_ms_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
{
s64 msec = 0;
bool enabled = false;
@@ -519,40 +503,39 @@ static ssize_t wakeup_prevent_sleep_time_show(struct device *dev,
return enabled ? sprintf(buf, "%lld\n", msec) : sprintf(buf, "\n");
}
-static DEVICE_ATTR(wakeup_prevent_sleep_time_ms, 0444,
- wakeup_prevent_sleep_time_show, NULL);
+static DEVICE_ATTR_RO(wakeup_prevent_sleep_time_ms);
#endif /* CONFIG_PM_AUTOSLEEP */
#endif /* CONFIG_PM_SLEEP */
#ifdef CONFIG_PM_ADVANCED_DEBUG
-static ssize_t rtpm_usagecount_show(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t runtime_usage_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
return sprintf(buf, "%d\n", atomic_read(&dev->power.usage_count));
}
+static DEVICE_ATTR_RO(runtime_usage);
-static ssize_t rtpm_children_show(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t runtime_active_kids_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
{
return sprintf(buf, "%d\n", dev->power.ignore_children ?
0 : atomic_read(&dev->power.child_count));
}
+static DEVICE_ATTR_RO(runtime_active_kids);
-static ssize_t rtpm_enabled_show(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t runtime_enabled_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- if ((dev->power.disable_depth) && (dev->power.runtime_auto == false))
+ if (dev->power.disable_depth && (dev->power.runtime_auto == false))
return sprintf(buf, "disabled & forbidden\n");
- else if (dev->power.disable_depth)
+ if (dev->power.disable_depth)
return sprintf(buf, "disabled\n");
- else if (dev->power.runtime_auto == false)
+ if (dev->power.runtime_auto == false)
return sprintf(buf, "forbidden\n");
return sprintf(buf, "enabled\n");
}
-
-static DEVICE_ATTR(runtime_usage, 0444, rtpm_usagecount_show, NULL);
-static DEVICE_ATTR(runtime_active_kids, 0444, rtpm_children_show, NULL);
-static DEVICE_ATTR(runtime_enabled, 0444, rtpm_enabled_show, NULL);
+static DEVICE_ATTR_RO(runtime_enabled);
#ifdef CONFIG_PM_SLEEP
static ssize_t async_show(struct device *dev, struct device_attribute *attr,
@@ -566,23 +549,16 @@ static ssize_t async_show(struct device *dev, struct device_attribute *attr,
static ssize_t async_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t n)
{
- char *cp;
- int len = n;
-
- cp = memchr(buf, '\n', n);
- if (cp)
- len = cp - buf;
- if (len == sizeof _enabled - 1 && strncmp(buf, _enabled, len) == 0)
+ if (sysfs_streq(buf, _enabled))
device_enable_async_suspend(dev);
- else if (len == sizeof _disabled - 1 &&
- strncmp(buf, _disabled, len) == 0)
+ else if (sysfs_streq(buf, _disabled))
device_disable_async_suspend(dev);
else
return -EINVAL;
return n;
}
-static DEVICE_ATTR(async, 0644, async_show, async_store);
+static DEVICE_ATTR_RW(async);
#endif /* CONFIG_PM_SLEEP */
#endif /* CONFIG_PM_ADVANCED_DEBUG */
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-17 07:46:25 +0300