moonjuice/kernel_arpi
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

opp: Expose of-node's name in debugfs

Browse Source 
[ Upstream commit 021dbecabc93b1610b5db989d52a94e0c6671136 ]

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: Leo Yan <leo.yan@linaro.org>
Tested-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Viresh Kumar
2022-02-10 14:37:53 +05:30
committed by Greg Kroah-Hartman
parent ea1f295841
commit 7295544bcf
2 changed files with 6 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/opp/debugfs.c
View File

@@ -10,6 +10,7 @@
#include <linux/debugfs.h> #include <linux/debugfs.h>
#include <linux/device.h> #include <linux/device.h>
#include <linux/err.h> #include <linux/err.h>
#include <linux/of.h>
#include <linux/init.h> #include <linux/init.h>
#include <linux/limits.h> #include <linux/limits.h>
#include <linux/slab.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_bool("suspend", S_IRUGO, d, &opp->suspend);
debugfs_create_u32("performance_state", S_IRUGO, d, &opp->pstate); debugfs_create_u32("performance_state", S_IRUGO, d, &opp->pstate);
debugfs_create_ulong("rate_hz", S_IRUGO, d, &opp->rate); 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, debugfs_create_ulong("clock_latency_ns", S_IRUGO, d,
&opp->clock_latency_ns); &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_supplies(opp, opp_table, d);
opp_debug_create_bw(opp, opp_table, d); opp_debug_create_bw(opp, opp_table, d);

1
drivers/opp/opp.h
View File

@@ -96,6 +96,7 @@ struct dev_pm_opp {
#ifdef CONFIG_DEBUG_FS #ifdef CONFIG_DEBUG_FS
struct dentry *dentry; struct dentry *dentry;
const char *of_name;
#endif #endif
}; };