usb: gadget: add max_speed to usb_composite_driver

This field is used by the Gadget drivers to specify
the maximum speed they support, meaning: the maximum
speed they can provide descriptors for.

The driver speed will be set in consideration of this
value.

[ balbi@ti.com : dropped the ifdeffery ]

Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

14 files changed, 16 insertions, 0 deletions

diff --git a/drivers/usb/gadget/audio.c b/drivers/usb/gadget/audio.c
index 93b999e49ef3..9d89ae4765a9 100644
--- a/drivers/usb/gadget/audio.c
+++ b/drivers/usb/gadget/audio.c
@@ -165,6 +165,7 @@ static struct usb_composite_driver audio_driver = {
         .name           = "g_audio",
         .dev            = &device_desc,
         .strings        = audio_strings,
+        .max_speed      = USB_SPEED_HIGH,
         .unbind         = __exit_p(audio_unbind),
 };
 
diff --git a/drivers/usb/gadget/cdc2.c b/drivers/usb/gadget/cdc2.c
index 2720ab07ef1a..b1c1afbb8750 100644
--- a/drivers/usb/gadget/cdc2.c
+++ b/drivers/usb/gadget/cdc2.c
@@ -244,6 +244,7 @@ static struct usb_composite_driver cdc_driver = {
         .name           = "g_cdc",
         .dev            = &device_desc,
         .strings        = dev_strings,
+        .max_speed      = USB_SPEED_HIGH,
         .unbind         = __exit_p(cdc_unbind),
 };
 
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index ed8a70f271f4..897e4f57422f 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -1386,6 +1386,8 @@ int usb_composite_probe(struct usb_composite_driver *driver,
                 driver->iProduct = driver->name;
         composite_driver.function =  (char *) driver->name;
         composite_driver.driver.name = driver->name;
+        composite_driver.speed = min((u8)composite_driver.speed,
+                                     (u8)driver->max_speed);
         composite = driver;
         composite_gadget_bind = bind;
 
diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c
index 1690c9d68256..ac41858800a5 100644
--- a/drivers/usb/gadget/ether.c
+++ b/drivers/usb/gadget/ether.c
@@ -401,6 +401,7 @@ static struct usb_composite_driver eth_driver = {
         .name           = "g_ether",
         .dev            = &device_desc,
         .strings        = dev_strings,
+        .max_speed      = USB_SPEED_HIGH,
         .unbind         = __exit_p(eth_unbind),
 };
 
diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c
index ebf6970a10bf..704c2800ac00 100644
--- a/drivers/usb/gadget/g_ffs.c
+++ b/drivers/usb/gadget/g_ffs.c
@@ -162,6 +162,7 @@ static struct usb_composite_driver gfs_driver = {
         .name           = DRIVER_NAME,
         .dev            = &gfs_dev_desc,
         .strings        = gfs_dev_strings,
+        .max_speed      = USB_SPEED_HIGH,
         .unbind         = gfs_unbind,
         .iProduct       = DRIVER_DESC,
 };
diff --git a/drivers/usb/gadget/hid.c b/drivers/usb/gadget/hid.c
index 2523e54097bd..9fb575034a0e 100644
--- a/drivers/usb/gadget/hid.c
+++ b/drivers/usb/gadget/hid.c
@@ -255,6 +255,7 @@ static struct usb_composite_driver hidg_driver = {
         .name           = "g_hid",
         .dev            = &device_desc,
         .strings        = dev_strings,
+        .max_speed      = USB_SPEED_HIGH,
         .unbind         = __exit_p(hid_unbind),
 };
 
diff --git a/drivers/usb/gadget/mass_storage.c b/drivers/usb/gadget/mass_storage.c
index 01822422c3e8..d3eb27427c58 100644
--- a/drivers/usb/gadget/mass_storage.c
+++ b/drivers/usb/gadget/mass_storage.c
@@ -169,6 +169,7 @@ static struct usb_composite_driver msg_driver = {
         .name           = "g_mass_storage",
         .dev            = &msg_device_desc,
         .iProduct       = DRIVER_DESC,
+        .max_speed      = USB_SPEED_HIGH,
         .needs_serial   = 1,
 };
 
diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c
index d9feced348e3..8c7b74717d85 100644
--- a/drivers/usb/gadget/multi.c
+++ b/drivers/usb/gadget/multi.c
@@ -351,6 +351,7 @@ static struct usb_composite_driver multi_driver = {
         .name           = "g_multi",
         .dev            = &device_desc,
         .strings        = dev_strings,
+        .max_speed      = USB_SPEED_HIGH,
         .unbind         = __exit_p(multi_unbind),
         .iProduct       = DRIVER_DESC,
         .needs_serial   = 1,
diff --git a/drivers/usb/gadget/ncm.c b/drivers/usb/gadget/ncm.c
index 99c179ad729d..62ee5087dcac 100644
--- a/drivers/usb/gadget/ncm.c
+++ b/drivers/usb/gadget/ncm.c
@@ -228,6 +228,7 @@ static struct usb_composite_driver ncm_driver = {
         .name           = "g_ncm",
         .dev            = &device_desc,
         .strings        = dev_strings,
+        .max_speed      = USB_SPEED_HIGH,
         .unbind         = __exit_p(gncm_unbind),
 };
 
diff --git a/drivers/usb/gadget/nokia.c b/drivers/usb/gadget/nokia.c
index 55ca63ad3506..c7fb7723c014 100644
--- a/drivers/usb/gadget/nokia.c
+++ b/drivers/usb/gadget/nokia.c
@@ -241,6 +241,7 @@ static struct usb_composite_driver nokia_driver = {
         .name           = "g_nokia",
         .dev            = &device_desc,
         .strings        = dev_strings,
+        .max_speed      = USB_SPEED_HIGH,
         .unbind         = __exit_p(nokia_unbind),
 };
 
diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c
index 1ac57a973aa9..ed1b816e58d8 100644
--- a/drivers/usb/gadget/serial.c
+++ b/drivers/usb/gadget/serial.c
@@ -242,6 +242,7 @@ static struct usb_composite_driver gserial_driver = {
         .name           = "g_serial",
         .dev            = &device_desc,
         .strings        = dev_strings,
+        .max_speed      = USB_SPEED_HIGH,
 };
 
 static int __init init(void)
diff --git a/drivers/usb/gadget/webcam.c b/drivers/usb/gadget/webcam.c
index a5a0fdb808c7..df6882de50bf 100644
--- a/drivers/usb/gadget/webcam.c
+++ b/drivers/usb/gadget/webcam.c
@@ -373,6 +373,7 @@ static struct usb_composite_driver webcam_driver = {
         .name           = "g_webcam",
         .dev            = &webcam_device_descriptor,
         .strings        = webcam_device_strings,
+        .max_speed      = USB_SPEED_HIGH,
         .unbind         = webcam_unbind,
 };
 
diff --git a/drivers/usb/gadget/zero.c b/drivers/usb/gadget/zero.c
index 6d16db9d9d2d..af7e7c3818d8 100644
--- a/drivers/usb/gadget/zero.c
+++ b/drivers/usb/gadget/zero.c
@@ -340,6 +340,7 @@ static struct usb_composite_driver zero_driver = {
         .name           = "zero",
         .dev            = &device_desc,
         .strings        = dev_strings,
+        .max_speed      = USB_SPEED_HIGH,
         .unbind         = zero_unbind,
         .suspend        = zero_suspend,
         .resume         = zero_resume,
diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h
index 99830d63d8f1..a3e72dfa6996 100644
--- a/include/linux/usb/composite.h
+++ b/include/linux/usb/composite.h
@@ -240,6 +240,7 @@ int usb_add_config(struct usb_composite_dev *,
  *      identifiers.
  * @strings: tables of strings, keyed by identifiers assigned during bind()