From: Tao Ren <rentao.bupt@xxxxxxxxx>
This patch moves patch-usb1-dev-desc logic from get-descriptor handler
to "ast_vhub_fixup_usb1_dev_desc" function so the code is executed only
once (at vhub initial time).
Signed-off-by: Tao Ren <rentao.bupt@xxxxxxxxx>
---
Changes in v2:
- update per-vhub device descriptor instance instead of the global
default descriptor.
drivers/usb/gadget/udc/aspeed-vhub/hub.c | 19 ++++++++-----------
1 file changed, 8 insertions(+), 11 deletions(-)
diff --git a/drivers/usb/gadget/udc/aspeed-vhub/hub.c b/drivers/usb/gadget/udc/aspeed-vhub/hub.c
index 13fba91aad6a..6497185ec4e7 100644
--- a/drivers/usb/gadget/udc/aspeed-vhub/hub.c
+++ b/drivers/usb/gadget/udc/aspeed-vhub/hub.c
@@ -73,13 +73,6 @@ static const struct usb_device_descriptor ast_vhub_dev_desc = {
.bNumConfigurations = 1,
};
-/* Patches to the above when forcing USB1 mode */
-static void ast_vhub_patch_dev_desc_usb1(struct usb_device_descriptor *desc)
-{
- desc->bcdUSB = cpu_to_le16(0x0100);
- desc->bDeviceProtocol = 0;
-}
-
/*
* Configuration descriptor: same comments as above
* regarding handling USB1 mode.
@@ -303,10 +296,6 @@ static int ast_vhub_rep_desc(struct ast_vhub_ep *ep,
if (len > dsize)
len = dsize;
- /* Patch it if forcing USB1 */
- if (desc_type == USB_DT_DEVICE && ep->vhub->force_usb1)
- ast_vhub_patch_dev_desc_usb1(ep->buf);
-
/* Shoot it from the EP buffer */
return ast_vhub_reply(ep, NULL, len);
}
@@ -907,6 +896,12 @@ static void ast_vhub_of_parse_dev_desc(struct ast_vhub *vhub,
}
}
+static void ast_vhub_fixup_usb1_dev_desc(struct ast_vhub *vhub)
+{
+ vhub->vhub_dev_desc.bcdUSB = cpu_to_le16(0x0100);
+ vhub->vhub_dev_desc.bDeviceProtocol = 0;
+}
+
static struct usb_gadget_string_container*
ast_vhub_str_container_alloc(struct ast_vhub *vhub)
{
@@ -1021,6 +1016,8 @@ static int ast_vhub_init_desc(struct ast_vhub *vhub)
memcpy(&vhub->vhub_dev_desc, &ast_vhub_dev_desc,
sizeof(vhub->vhub_dev_desc));
ast_vhub_of_parse_dev_desc(vhub, vhub_np);
+ if (vhub->force_usb1)
+ ast_vhub_fixup_usb1_dev_desc(vhub);
/* Initialize vhub Configuration Descriptor. */
memcpy(&vhub->vhub_conf_desc, &ast_vhub_conf_desc,
--
2.17.1
