Commit 021dbeca authored by Viresh Kumar's avatar Viresh Kumar
Browse files

opp: Expose of-node's name in debugfs 



It is difficult to find which OPPs are active at the moment, specially
if there are multiple OPPs with same frequency available in the device
tree (controlled by supported hardware feature).

Expose name of the DT node to find out the exact OPP.

While at it, also expose level field.

Reported-by: default avatarLeo Yan <leo.yan@linaro.org>
Tested-by: default avatarLeo Yan <leo.yan@linaro.org>
Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
parent e783362e

drivers/opp/debugfs.c

+5 −0
Original line number Diff line number Diff line
@@ -10,6 +10,7 @@ 
#include <linux/debugfs.h>

#include <linux/device.h>

#include <linux/err.h>

#include <linux/of.h>

#include <linux/init.h>

#include <linux/limits.h>

#include <linux/slab.h>
@@ -131,9 +132,13 @@ void opp_debug_create_one(struct dev_pm_opp *opp, struct opp_table *opp_table) 
	debugfs_create_bool("suspend", S_IRUGO, d, &opp->suspend);

	debugfs_create_u32("performance_state", S_IRUGO, d, &opp->pstate);

	debugfs_create_ulong("rate_hz", S_IRUGO, d, &opp->rate);

	debugfs_create_u32("level", S_IRUGO, d, &opp->level);

	debugfs_create_ulong("clock_latency_ns", S_IRUGO, d,

			     &opp->clock_latency_ns);



	opp->of_name = of_node_full_name(opp->np);

	debugfs_create_str("of_name", S_IRUGO, d, (char **)&opp->of_name);



	opp_debug_create_supplies(opp, opp_table, d);

	opp_debug_create_bw(opp, opp_table, d);

drivers/opp/opp.h

+1 −0
Original line number Diff line number Diff line
@@ -96,6 +96,7 @@ struct dev_pm_opp { 


#ifdef CONFIG_DEBUG_FS

	struct dentry *dentry;

	const char *of_name;

#endif

};