[PATCHv2 3/6] HSI: method to unregister clients from an hsi port

[Sebastian Reichel <sre@xxxxxxxxxx>]

This exports a method to unregister all clients from
an hsi port.

Signed-off-by: Sebastian Reichel <sre@xxxxxxxxxx>
---
 drivers/hsi/hsi.c       | 10 ++++++++++
 include/linux/hsi/hsi.h |  1 +
 2 files changed, 11 insertions(+)

diff --git a/drivers/hsi/hsi.c b/drivers/hsi/hsi.c
index 6fde590..098cc3a 100644
--- a/drivers/hsi/hsi.c
+++ b/drivers/hsi/hsi.c
@@ -160,6 +160,16 @@ static void hsi_port_release(struct device *dev)
 }
 
 /**
+ * hsi_unregister_port - Unregister an HSI port
+ * @port: The HSI port to unregister
+ */
+void hsi_port_unregister_clients(struct hsi_port *port)
+{
+	device_for_each_child(&port->device, NULL, hsi_remove_client);
+}
+EXPORT_SYMBOL_GPL(hsi_port_unregister_clients);
+
+/**
  * hsi_unregister_controller - Unregister an HSI controller
  * @hsi: The HSI controller to register
  */
diff --git a/include/linux/hsi/hsi.h b/include/linux/hsi/hsi.h
index fb07339..89cc6f2 100644
--- a/include/linux/hsi/hsi.h
+++ b/include/linux/hsi/hsi.h
@@ -284,6 +284,7 @@ int hsi_register_controller(struct hsi_controller *hsi);
 void hsi_unregister_controller(struct hsi_controller *hsi);
 void hsi_add_clients_from_dt(struct hsi_port *port,
 						struct device_node *clients);
+void hsi_port_unregister_clients(struct hsi_port *port);
 
 static inline void hsi_controller_set_drvdata(struct hsi_controller *hsi,
 								void *data)
-- 
1.9.0

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