author: Viresh Kumar <viresh.kumar@linaro.org> 2020-05-18 14:25:32 +0300
committer: Viresh Kumar <viresh.kumar@linaro.org> 2020-05-29 10:15:12 +0530
commit: 0430b1d5704b0f0f1d237236dde9c143f8669e49
parent: 8b17f17a097bdbc9546f5fdde3098b5f21cbfbff
Commit Summary:
Diffstat:
1 file changed, 35 insertions, 0 deletions
diff --git a/drivers/opp/debugfs.c b/drivers/opp/debugfs.c
index 609665e339b6..596c185b5dda 100644
--- a/drivers/opp/debugfs.c
+++ b/drivers/opp/debugfs.c
@@ -32,6 +32,47 @@ void opp_debug_remove_one(struct dev_pm_opp *opp)
debugfs_remove_recursive(opp->dentry);
}
+static ssize_t bw_name_read(struct file *fp, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct icc_path *path = fp->private_data;
+ char buf[64];
+ int i;
+
+ i = scnprintf(buf, sizeof(buf), "%.62s\n", icc_get_name(path));
+
+ return simple_read_from_buffer(userbuf, count, ppos, buf, i);
+}
+
+static const struct file_operations bw_name_fops = {
+ .open = simple_open,
+ .read = bw_name_read,
+ .llseek = default_llseek,
+};
+
+static void opp_debug_create_bw(struct dev_pm_opp *opp,
+ struct opp_table *opp_table,
+ struct dentry *pdentry)
+{
+ struct dentry *d;
+ char name[11];
+ int i;
+
+ for (i = 0; i < opp_table->path_count; i++) {
+ snprintf(name, sizeof(name), "icc-path-%.1d", i);
+
+ /* Create per-path directory */
+ d = debugfs_create_dir(name, pdentry);
+
+ debugfs_create_file("name", S_IRUGO, d, opp_table->paths[i],
+ &bw_name_fops);
+ debugfs_create_u32("peak_bw", S_IRUGO, d,
+ &opp->bandwidth[i].peak);
+ debugfs_create_u32("avg_bw", S_IRUGO, d,
+ &opp->bandwidth[i].avg);
+ }
+}
+
static void opp_debug_create_supplies(struct dev_pm_opp *opp,
struct opp_table *opp_table,
struct dentry *pdentry)
@@ -94,6 +135,7 @@ void opp_debug_create_one(struct dev_pm_opp *opp, struct opp_table *opp_table)
&opp->clock_latency_ns);
opp_debug_create_supplies(opp, opp_table, d);
+ opp_debug_create_bw(opp, opp_table, d);
opp->dentry = d;
}