1 files changed, 18 insertions, 79 deletions

diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c
index fcc91a338875..e72c43615d77 100644
--- a/drivers/usb/chipidea/debug.c
+++ b/drivers/usb/chipidea/debug.c
@@ -18,7 +18,7 @@
 #include "bits.h"
 #include "otg.h"
 
-/**
+/*
  * ci_device_show: prints information about device capabilities and status
  */
 static int ci_device_show(struct seq_file *s, void *data)
@@ -47,7 +47,7 @@ static int ci_device_show(struct seq_file *s, void *data)
 }
 DEFINE_SHOW_ATTRIBUTE(ci_device);
 
-/**
+/*
  * ci_port_test_show: reads port test mode
  */
 static int ci_port_test_show(struct seq_file *s, void *data)
@@ -67,7 +67,7 @@ static int ci_port_test_show(struct seq_file *s, void *data)
 	return 0;
 }
 
-/**
+/*
  * ci_port_test_write: writes port test mode
  */
 static ssize_t ci_port_test_write(struct file *file, const char __user *ubuf,
@@ -115,7 +115,7 @@ static const struct file_operations ci_port_test_fops = {
 	.release	= single_release,
 };
 
-/**
+/*
  * ci_qheads_show: DMA contents of all queue heads
  */
 static int ci_qheads_show(struct seq_file *s, void *data)
@@ -147,7 +147,7 @@ static int ci_qheads_show(struct seq_file *s, void *data)
 }
 DEFINE_SHOW_ATTRIBUTE(ci_qheads);
 
-/**
+/*
  * ci_requests_show: DMA contents of all requests currently queued (all endpts)
  */
 static int ci_requests_show(struct seq_file *s, void *data)
@@ -247,60 +247,6 @@ static int ci_otg_show(struct seq_file *s, void *unused)
 }
 DEFINE_SHOW_ATTRIBUTE(ci_otg);
 
-static int ci_role_show(struct seq_file *s, void *data)
-{
-	struct ci_hdrc *ci = s->private;
-
-	if (ci->role != CI_ROLE_END)
-		seq_printf(s, "%s\n", ci_role(ci)->name);
-
-	return 0;
-}
-
-static ssize_t ci_role_write(struct file *file, const char __user *ubuf,
-			     size_t count, loff_t *ppos)
-{
-	struct seq_file *s = file->private_data;
-	struct ci_hdrc *ci = s->private;
-	enum ci_role role;
-	char buf[8];
-	int ret;
-
-	if (copy_from_user(buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
-		return -EFAULT;
-
-	for (role = CI_ROLE_HOST; role < CI_ROLE_END; role++)
-		if (ci->roles[role] &&
-		    !strncmp(buf, ci->roles[role]->name,
-			     strlen(ci->roles[role]->name)))
-			break;
-
-	if (role == CI_ROLE_END || role == ci->role)
-		return -EINVAL;
-
-	pm_runtime_get_sync(ci->dev);
-	disable_irq(ci->irq);
-	ci_role_stop(ci);
-	ret = ci_role_start(ci, role);
-	enable_irq(ci->irq);
-	pm_runtime_put_sync(ci->dev);
-
-	return ret ? ret : count;
-}
-
-static int ci_role_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, ci_role_show, inode->i_private);
-}
-
-static const struct file_operations ci_role_fops = {
-	.open		= ci_role_open,
-	.write		= ci_role_write,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
 static int ci_registers_show(struct seq_file *s, void *unused)
 {
 	struct ci_hdrc *ci = s->private;
@@ -342,26 +288,19 @@ DEFINE_SHOW_ATTRIBUTE(ci_registers);
  */
 void dbg_create_files(struct ci_hdrc *ci)
 {
-	ci->debugfs = debugfs_create_dir(dev_name(ci->dev), NULL);
-
-	debugfs_create_file("device", S_IRUGO, ci->debugfs, ci,
-			    &ci_device_fops);
-	debugfs_create_file("port_test", S_IRUGO | S_IWUSR, ci->debugfs, ci,
-			    &ci_port_test_fops);
-	debugfs_create_file("qheads", S_IRUGO, ci->debugfs, ci,
-			    &ci_qheads_fops);
-	debugfs_create_file("requests", S_IRUGO, ci->debugfs, ci,
-			    &ci_requests_fops);
-
-	if (ci_otg_is_fsm_mode(ci)) {
-		debugfs_create_file("otg", S_IRUGO, ci->debugfs, ci,
-				    &ci_otg_fops);
-	}
+	struct dentry *dir;
+
+	dir = debugfs_create_dir(dev_name(ci->dev), usb_debug_root);
+
+	debugfs_create_file("device", S_IRUGO, dir, ci, &ci_device_fops);
+	debugfs_create_file("port_test", S_IRUGO | S_IWUSR, dir, ci, &ci_port_test_fops);
+	debugfs_create_file("qheads", S_IRUGO, dir, ci, &ci_qheads_fops);
+	debugfs_create_file("requests", S_IRUGO, dir, ci, &ci_requests_fops);
+
+	if (ci_otg_is_fsm_mode(ci))
+		debugfs_create_file("otg", S_IRUGO, dir, ci, &ci_otg_fops);
 
-	debugfs_create_file("role", S_IRUGO | S_IWUSR, ci->debugfs, ci,
-			    &ci_role_fops);
-	debugfs_create_file("registers", S_IRUGO, ci->debugfs, ci,
-			    &ci_registers_fops);
+	debugfs_create_file("registers", S_IRUGO, dir, ci, &ci_registers_fops);
 }
 
 /**
@@ -370,5 +309,5 @@ void dbg_create_files(struct ci_hdrc *ci)
  */
 void dbg_remove_files(struct ci_hdrc *ci)
 {
-	debugfs_remove_recursive(ci->debugfs);
+	debugfs_lookup_and_remove(dev_name(ci->dev), usb_debug_root);
 }