usb: gadget: dwc2_udc_otg: Fix dwc2_gadget_start() and usb_gadget_register_driver()

Since commit 2633459f01e8 ("usb: gadget: add super speed support")
ums was no more functional on platform which use dwc2_udc_otg driver.

This was due to a too restrictive test which checked that the gadget
driver speed was either FS or HS.

So all gadget driver with max speed set to speed higher than
HS (SS in case of composite gadget driver in our case) are not
allowed, which is wrong.

Update the speed test in usb_gadget_register_driver() and in
dwc2_gadget_start() to allow all gadget driver speed equal or higher
than FS.

Tested on stm32mp157c-ev1 board.

Fixes: 8fae2d750482 ("usb: dwc2: convert driver to DM_USB_GADGET")
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>

diff --git a/drivers/usb/gadget/dwc2_udc_otg.c b/drivers/usb/gadget/dwc2_udc_otg.c
index ecac80fc116666c14c0af42b4d6f4669de0f3f4d..2f318144421cf2496f9b076408391f1b74ec8bfe 100644 (file)
--- a/drivers/usb/gadget/dwc2_udc_otg.c
+++ b/drivers/usb/gadget/dwc2_udc_otg.c
@@ -248,9 +248,7 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver)
 
        debug_cond(DEBUG_SETUP != 0, "%s: %s\n", __func__, "no name");
 
-       if (!driver
-           || (driver->speed != USB_SPEED_FULL
-               && driver->speed != USB_SPEED_HIGH)
+       if (!driver || driver->speed < USB_SPEED_FULL
            || !driver->bind || !driver->disconnect || !driver->setup)
                return -EINVAL;
        if (!dev)
@@ -320,9 +318,7 @@ static int dwc2_gadget_start(struct usb_gadget *g,
 
        debug_cond(DEBUG_SETUP != 0, "%s: %s\n", __func__, "no name");
 
-       if (!driver ||
-           (driver->speed != USB_SPEED_FULL &&
-            driver->speed != USB_SPEED_HIGH) ||
+       if (!driver || driver->speed < USB_SPEED_FULL ||
            !driver->bind || !driver->disconnect || !driver->setup)
                return -EINVAL;