[PATCH 1/4] usb: otg: Add function to set dr_mode

[Sascha Hauer <s.hauer@pengutronix.de>]

So far we can only set the dr_mode on the command line. Add a function
for it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 drivers/usb/otg/otgdev.c | 20 ++++++++++++++++++++
 include/linux/usb/usb.h  |  1 +
 2 files changed, 21 insertions(+)

diff --git a/drivers/usb/otg/otgdev.c b/drivers/usb/otg/otgdev.c
index 5a86263430..50d8105be3 100644
--- a/drivers/usb/otg/otgdev.c
+++ b/drivers/usb/otg/otgdev.c
@@ -74,6 +74,26 @@ int otg_device_get_mode(struct device *dev)
 	return otg->cur_mode;
 }
 
+int otg_device_set_dr_mode(struct device *dev, enum usb_dr_mode mode)
+{
+	struct otg_mode *otg;
+	int ret;
+
+	if (dev->bus != &otg_bus_type)
+		return -ENODEV;
+
+	otg = dev->priv;
+
+	ret = otg->set_mode_callback(otg->ctx, mode);
+	if (ret)
+		return ret;
+
+	otg->cur_mode = mode;
+	otg->var_mode = mode;
+
+	return 0;
+}
+
 int usb_register_otg_device(struct device *parent,
 			    int (*set_mode)(void *ctx, enum usb_dr_mode mode), void *ctx)
 {
diff --git a/include/linux/usb/usb.h b/include/linux/usb/usb.h
index c25f3d73c3..6aa9e55cc9 100644
--- a/include/linux/usb/usb.h
+++ b/include/linux/usb/usb.h
@@ -477,6 +477,7 @@ int usb_register_otg_device(struct device *parent,
 			    int (*set_mode)(void *ctx, enum usb_dr_mode mode), void *ctx);
 
 int otg_device_get_mode(struct device *dev);
+int otg_device_set_dr_mode(struct device *dev, enum usb_dr_mode mode);
 
 extern struct bus_type otg_bus_type;
 

-- 
2.47.3