diff options
| author | Michael Grzeschik <m.grzeschik@pengutronix.de> | 2013-03-30 11:54:05 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-30 16:20:48 +0100 |
| commit | 1cd12a9cf055e72b3094ef38ac4d9afff2e9520e (patch) | |
| tree | 46ac251c51aa1e0e2eb5e194abcfc6927c7dfe37 /drivers/usb/chipidea/udc.c | |
| parent | usb: chipidea: udc: only clear active and halted bits in qhead (diff) | |
| download | linux-1cd12a9cf055e72b3094ef38ac4d9afff2e9520e.tar.xz linux-1cd12a9cf055e72b3094ef38ac4d9afff2e9520e.zip | |
usb: chipidea: udc: rework ep_enable cap setting
This patch reworks the cap value from several read
and write operations to one single operation.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Reviewed-by: Felipe Balbi <balbi@ti.com>
[Alex: removed useless isoc-related bit of code]
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/chipidea/udc.c')
| -rw-r--r-- | drivers/usb/chipidea/udc.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 0e11172a4c84..3abd1ad5ced1 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -986,6 +986,7 @@ static int ep_enable(struct usb_ep *ep, struct ci13xxx_ep *mEp = container_of(ep, struct ci13xxx_ep, ep); int retval = 0; unsigned long flags; + u32 cap = 0; if (ep == NULL || desc == NULL) return -EINVAL; @@ -1005,17 +1006,12 @@ static int ep_enable(struct usb_ep *ep, mEp->ep.maxpacket = usb_endpoint_maxp(desc); - mEp->qh.ptr->cap = 0; - if (mEp->type == USB_ENDPOINT_XFER_CONTROL) - mEp->qh.ptr->cap |= cpu_to_le32(QH_IOS); - else if (mEp->type == USB_ENDPOINT_XFER_ISOC) - mEp->qh.ptr->cap &= cpu_to_le32(~QH_MULT); - else - mEp->qh.ptr->cap &= cpu_to_le32(~QH_ZLT); + cap |= QH_IOS; + cap |= (mEp->ep.maxpacket << __ffs(QH_MAX_PKT)) & QH_MAX_PKT; + + mEp->qh.ptr->cap = cpu_to_le32(cap); - mEp->qh.ptr->cap |= cpu_to_le32((mEp->ep.maxpacket << __ffs(QH_MAX_PKT)) - & QH_MAX_PKT); mEp->qh.ptr->td.next |= cpu_to_le32(TD_TERMINATE); /* needed? */ /* |