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PM / devfreq: Simplify the sysfs name of devfreq-event device
This patch just removes '.' character from the sysfs name of devfreq-event device as following. Usually, the subsystem uses the similiar naming style such as {framework name}{Number}. - old : /sys/class/devfreq-event/event.(X) - new : /sys/class/devfreq-event/event(X) And this patch initializes the value of 'event_no' with -1 in order to remove the unneeded operation (-1) when calling the atomic_inc_return(&event_no). Lastly, this patch adds the ABI document for devfreq-event class. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,25 @@ | ||
What: /sys/class/devfreq-event/event(x)/ | ||
Date: January 2017 | ||
Contact: Chanwoo Choi <cw00.choi@samsung.com> | ||
Description: | ||
Provide a place in sysfs for the devfreq-event objects. | ||
This allows accessing various devfreq-event specific variables. | ||
The name of devfreq-event object denoted as 'event(x)' which | ||
includes the unique number of 'x' for each devfreq-event object. | ||
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||
What: /sys/class/devfreq-event/event(x)/name | ||
Date: January 2017 | ||
Contact: Chanwoo Choi <cw00.choi@samsung.com> | ||
Description: | ||
The /sys/class/devfreq-event/event(x)/name attribute contains | ||
the name of the devfreq-event object. This attribute is | ||
read-only. | ||
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||
What: /sys/class/devfreq-event/event(x)/enable_count | ||
Date: January 2017 | ||
Contact: Chanwoo Choi <cw00.choi@samsung.com> | ||
Description: | ||
The /sys/class/devfreq-event/event(x)/enable_count attribute | ||
contains the reference count to enable the devfreq-event | ||
object. If the device is enabled, the value of attribute is | ||
greater than zero. |
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