Commit 5ce2e4ce authored by Felipe Balbi's avatar Felipe Balbi Committed by Greg Kroah-Hartman

usb: gadget: function: f_fs: pass companion descriptor along

commit 2bfa0719 upstream.

If we're dealing with SuperSpeed endpoints, we need
to make sure to pass along the companion descriptor
and initialize fields needed by the Gadget
API. Eventually, f_fs.c should be converted to use
config_ep_by_speed() like all other functions,
though.
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 40192c96
......@@ -1833,11 +1833,14 @@ static int ffs_func_eps_enable(struct ffs_function *func)
spin_lock_irqsave(&func->ffs->eps_lock, flags);
do {
struct usb_endpoint_descriptor *ds;
struct usb_ss_ep_comp_descriptor *comp_desc = NULL;
int needs_comp_desc = false;
int desc_idx;
if (ffs->gadget->speed == USB_SPEED_SUPER)
if (ffs->gadget->speed == USB_SPEED_SUPER) {
desc_idx = 2;
else if (ffs->gadget->speed == USB_SPEED_HIGH)
needs_comp_desc = true;
} else if (ffs->gadget->speed == USB_SPEED_HIGH)
desc_idx = 1;
else
desc_idx = 0;
......@@ -1854,6 +1857,14 @@ static int ffs_func_eps_enable(struct ffs_function *func)
ep->ep->driver_data = ep;
ep->ep->desc = ds;
comp_desc = (struct usb_ss_ep_comp_descriptor *)(ds +
USB_DT_ENDPOINT_SIZE);
ep->ep->maxburst = comp_desc->bMaxBurst + 1;
if (needs_comp_desc)
ep->ep->comp_desc = comp_desc;
ret = usb_ep_enable(ep->ep);
if (likely(!ret)) {
epfile->ep = ep;
......
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