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From: Eddie James <eajames@linux.vnet.ibm.com>
To: openbmc@lists.ozlabs.org
Cc: joel@jms.id.au, andrew@aj.id.au, "Edward A. James" <eajames@us.ibm.com>
Subject: [PATCH linux dev-4.10 1/2] hwmon: (pmbus): Export pmbus device
 debugfs directory entry
Date: Thu,  2 Nov 2017 15:59:40 -0500
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From: "Edward A. James" <eajames@us.ibm.com>

Pmbus client drivers, if they want to use debugfs, should use the same
root directory as the pmbus debugfs entries are using. Therefore, export
the device dentry for the pmbus client.

Signed-off-by: Edward A. James <eajames@us.ibm.com>
---
 drivers/hwmon/pmbus/pmbus.h      | 1 +
 drivers/hwmon/pmbus/pmbus_core.c | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/drivers/hwmon/pmbus/pmbus.h b/drivers/hwmon/pmbus/pmbus.h
index fd422cd..153d3f6 100644
--- a/drivers/hwmon/pmbus/pmbus.h
+++ b/drivers/hwmon/pmbus/pmbus.h
@@ -452,5 +452,6 @@ int pmbus_do_probe(struct i2c_client *client, const struct i2c_device_id *id,
 int pmbus_do_remove(struct i2c_client *client);
 const struct pmbus_driver_info *pmbus_get_driver_info(struct i2c_client
 						      *client);
+struct dentry *pmbus_get_debugfs_dir(struct i2c_client *client);
 
 #endif /* PMBUS_H */
diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
index c4b551b..b943f99 100644
--- a/drivers/hwmon/pmbus/pmbus_core.c
+++ b/drivers/hwmon/pmbus/pmbus_core.c
@@ -2371,6 +2371,13 @@ int pmbus_do_remove(struct i2c_client *client)
 }
 EXPORT_SYMBOL_GPL(pmbus_do_remove);
 
+struct dentry *pmbus_get_debugfs_dir(struct i2c_client *client)
+{
+	struct pmbus_data *data = i2c_get_clientdata(client);
+
+	return data->debugfs;
+}
+
 static int __init pmbus_core_init(void)
 {
 	pmbus_debugfs_dir = debugfs_create_dir("pmbus", NULL);
-- 
1.8.3.1