usb, g_dnl: make bcdDevice value configurable

add the possibility to set the bcdDevice number board specific.
Therefore the weak function g_dnl_get_board_bcd_device_number()
is introduced. Used on the siemens boards.

Signed-off-by: Heiko Schocher <hs@denx.de>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>

diff --git a/drivers/usb/gadget/g_dnl.c b/drivers/usb/gadget/g_dnl.c
index 8dc3d9f8a8443ca14f5ca21eb249f45c6e20110e..dd95afe86a5d5d44bbc07c91c883d09b1efa6958 100644 (file)
--- a/drivers/usb/gadget/g_dnl.c
+++ b/drivers/usb/gadget/g_dnl.c
@@ -147,6 +147,23 @@ int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name)
        return 0;
 }
 
+__weak int g_dnl_get_board_bcd_device_number(int gcnum)
+{
+       return gcnum;
+}
+
+static int g_dnl_get_bcd_device_number(struct usb_composite_dev *cdev)
+{
+       struct usb_gadget *gadget = cdev->gadget;
+       int gcnum;
+
+       gcnum = usb_gadget_controller_number(gadget);
+       if (gcnum > 0)
+               gcnum += 0x200;
+
+       return g_dnl_get_board_bcd_device_number(gcnum);
+}
+
 static int g_dnl_bind(struct usb_composite_dev *cdev)
 {
        struct usb_gadget *gadget = cdev->gadget;
@@ -181,11 +198,9 @@ static int g_dnl_bind(struct usb_composite_dev *cdev)
        if (ret)
                goto error;
 
-       gcnum = usb_gadget_controller_number(gadget);
-
-       debug("gcnum: %d\n", gcnum);
+       gcnum = g_dnl_get_bcd_device_number(cdev);
        if (gcnum >= 0)
-               device_desc.bcdDevice = cpu_to_le16(0x0200 + gcnum);
+               device_desc.bcdDevice = cpu_to_le16(gcnum);
        else {
                debug("%s: controller '%s' not recognized\n",
                        shortname, gadget->name);