Use this function so that we can verify the OTG_ID
pin is high and device mode should be activated.
Signed-off-by: Troy Kisky <troy.ki...@boundarydevices.com>
---
v5: new patch
---
drivers/usb/gadget/mv_udc.c | 2 +-
drivers/usb/host/ehci-hcd.c | 13 +++++++++++++
include/usb.h | 1 +
3 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/mv_udc.c b/drivers/usb/gadget/mv_udc.c
index b87119c..ecd11d7 100644
--- a/drivers/usb/gadget/mv_udc.c
+++ b/drivers/usb/gadget/mv_udc.c
@@ -684,7 +684,7 @@ int usb_gadget_register_driver(struct usb_gadget_driver
*driver)
if (driver->speed != USB_SPEED_FULL && driver->speed != USB_SPEED_HIGH)
return -EINVAL;
- ret = usb_lowlevel_init(0, (void **)&controller.ctrl);
+ ret = usb_lowlevel_init_device(0, (void **)&controller.ctrl);
if (ret)
return ret;
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index fdad739..dbea756 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1004,6 +1004,19 @@ int usb_lowlevel_init(int index, void **controller)
return 0;
}
+int usb_lowlevel_init_device(int index, void **controller)
+{
+ int rc = ehci_hcd_init(index, &ehcic[index].hccr, &ehcic[index].hcor);
+
+ /* rc == 0 means host mode, failure for us */
+ if (!rc)
+ return -EINVAL;
+ if (rc != -ENODEV)
+ return rc;
+ *controller = &ehcic[index];
+ return 0;
+}
+
int
submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
int length)
diff --git a/include/usb.h b/include/usb.h
index 60db897..4bc50cc 100644
--- a/include/usb.h
+++ b/include/usb.h
@@ -141,6 +141,7 @@ struct usb_device {
defined(CONFIG_USB_MUSB_OMAP2PLUS)
int usb_lowlevel_init(int index, void **controller);
+int usb_lowlevel_init_device(int index, void **controller);
int usb_lowlevel_stop(int index);
int submit_bulk_msg(struct usb_device *dev, unsigned long pipe,
--
1.8.1.2
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