usb: udc: Fix gadget driver's speed check in various UDC drivers

Several UDC drivers had a gadget driver's speed sanity check of the
form of:

	driver->speed != USB_SPEED_HIGH

or:

	driver->speed != USB_SPEED_HIGH && driver->speed != USB_SPEED_FULL

As more and more gadget drivers support USB SuperSpeed, driver->speed
may be set to USB_SPEED_SUPER and UDC driver should handle such gadget
correctly.  The above checks however fail to recognise USB_SPEED_SUPER
as a valid speed.

This commit changes the two checks to:

	driver->speed < USB_SPEED_HIGH

or:

	driver->speed < USB_SPEED_FULL

respectively.

Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Reported-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c
index 4730016..45f422a 100644 (file)
--- a/drivers/usb/gadget/amd5536udc.c
+++ b/drivers/usb/gadget/amd5536udc.c
@@ -1959,7 +1959,7 @@ static int amd5536_start(struct usb_gadget_driver *driver,
        u32 tmp;
 
        if (!driver || !bind || !driver->setup
-                       || driver->speed != USB_SPEED_HIGH)
+                       || driver->speed < USB_SPEED_HIGH)
                return -EINVAL;
        if (!dev)
                return -ENODEV;

diff --git a/drivers/usb/gadget/fsl_qe_udc.c b/drivers/usb/gadget/fsl_qe_udc.c
index 2a03e4d..e00cf92 100644 (file)
--- a/drivers/usb/gadget/fsl_qe_udc.c
+++ b/drivers/usb/gadget/fsl_qe_udc.c
@@ -2336,8 +2336,7 @@ static int fsl_qe_start(struct usb_gadget_driver *driver,
        if (!udc_controller)
                return -ENODEV;
 
-       if (!driver || (driver->speed != USB_SPEED_FULL
-                       && driver->speed != USB_SPEED_HIGH)
+       if (!driver || driver->speed < USB_SPEED_FULL
                        || !bind || !driver->disconnect || !driver->setup)
                return -EINVAL;
 

diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c
index b3b3d83..1482b12 100644 (file)
--- a/drivers/usb/gadget/fsl_udc_core.c
+++ b/drivers/usb/gadget/fsl_udc_core.c
@@ -1938,8 +1938,7 @@ static int fsl_start(struct usb_gadget_driver *driver,
        if (!udc_controller)
                return -ENODEV;
 
-       if (!driver || (driver->speed != USB_SPEED_FULL
-                               && driver->speed != USB_SPEED_HIGH)
+       if (!driver || driver->speed < USB_SPEED_FULL
                        || !bind || !driver->disconnect || !driver->setup)
                return -EINVAL;
 

diff --git a/drivers/usb/gadget/m66592-udc.c b/drivers/usb/gadget/m66592-udc.c
index 91d0af2..9aa1cbb 100644 (file)
--- a/drivers/usb/gadget/m66592-udc.c
+++ b/drivers/usb/gadget/m66592-udc.c
@@ -1472,7 +1472,7 @@ static int m66592_start(struct usb_gadget_driver *driver,
        int retval;
 
        if (!driver
-                       || driver->speed != USB_SPEED_HIGH
+                       || driver->speed < USB_SPEED_HIGH
                        || !bind
                        || !driver->setup)
                return -EINVAL;

diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c
index 7f1bc9a..da2b9d0 100644 (file)
--- a/drivers/usb/gadget/net2280.c
+++ b/drivers/usb/gadget/net2280.c
@@ -1881,7 +1881,7 @@ static int net2280_start(struct usb_gadget *_gadget,
         * (dev->usb->xcvrdiag & FORCE_FULL_SPEED_MODE)
         * "must not be used in normal operation"
         */
-       if (!driver || driver->speed != USB_SPEED_HIGH
+       if (!driver || driver->speed < USB_SPEED_HIGH
                        || !driver->setup)
                return -EINVAL;
 

diff --git a/drivers/usb/gadget/r8a66597-udc.c b/drivers/usb/gadget/r8a66597-udc.c
index 24f84b2..fc719a3 100644 (file)
--- a/drivers/usb/gadget/r8a66597-udc.c
+++ b/drivers/usb/gadget/r8a66597-udc.c
@@ -1746,7 +1746,7 @@ static int r8a66597_start(struct usb_gadget *gadget,
        struct r8a66597 *r8a66597 = gadget_to_r8a66597(gadget);
 
        if (!driver
-                       || driver->speed != USB_SPEED_HIGH
+                       || driver->speed < USB_SPEED_HIGH
                        || !driver->setup)
                return -EINVAL;
        if (!r8a66597)

diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index a552453..b314482 100644 (file)
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -2586,10 +2586,8 @@ static int s3c_hsotg_start(struct usb_gadget_driver *driver,
                return -EINVAL;
        }
 
-       if (driver->speed != USB_SPEED_HIGH &&
-           driver->speed != USB_SPEED_FULL) {
+       if (driver->speed < USB_SPEED_FULL)
                dev_err(hsotg->dev, "%s: bad speed\n", __func__);
-       }
 
        if (!bind || !driver->setup) {
                dev_err(hsotg->dev, "%s: missing entry points\n", __func__);

diff --git a/drivers/usb/gadget/s3c-hsudc.c b/drivers/usb/gadget/s3c-hsudc.c
index 8d54f89..20a553b 100644 (file)
--- a/drivers/usb/gadget/s3c-hsudc.c
+++ b/drivers/usb/gadget/s3c-hsudc.c
@@ -1142,8 +1142,7 @@ static int s3c_hsudc_start(struct usb_gadget_driver *driver,
        int ret;
 
        if (!driver
-               || (driver->speed != USB_SPEED_FULL &&
-                       driver->speed != USB_SPEED_HIGH)
+               || driver->speed < USB_SPEED_FULL
                || !bind
                || !driver->unbind || !driver->disconnect || !driver->setup)
                return -EINVAL;

diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index d51043a..922148f 100644 (file)
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -1903,7 +1903,7 @@ static int musb_gadget_start(struct usb_gadget *g,
        unsigned long           flags;
        int                     retval = -EINVAL;
 
-       if (driver->speed != USB_SPEED_HIGH)
+       if (driver->speed < USB_SPEED_HIGH)
                goto err0;
 
        pm_runtime_get_sync(musb->controller);