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usb: chipidea: don't redefine __ffs()

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chipidea's ffs_nr() is pretty much what __ffs() does.

Use that one instead.

Signed-off-by: Felipe Balbi <balbi@ti.com>
[rebased on top of debug infrastructure rework]
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Felipe Balbi
2013-03-30 12:53:55 +02:00
committed by Greg Kroah-Hartman
parent ba8618e067
commit 727b4ddb48
3 changed files with 11 additions and 24 deletions
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12
drivers/usb/chipidea/udc.c
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@@ -140,7 +140,7 @@ static int hw_ep_enable(struct ci13xxx *ci, int num, int dir, int type)
if (dir) {
mask = ENDPTCTRL_TXT; /* type */
data = type << ffs_nr(mask);
data = type << __ffs(mask);
mask |= ENDPTCTRL_TXS; /* unstall */
mask |= ENDPTCTRL_TXR; /* reset data toggle */
@@ -149,7 +149,7 @@ static int hw_ep_enable(struct ci13xxx *ci, int num, int dir, int type)
data |= ENDPTCTRL_TXE;
} else {
mask = ENDPTCTRL_RXT; /* type */
data = type << ffs_nr(mask);
data = type << __ffs(mask);
mask |= ENDPTCTRL_RXS; /* unstall */
mask |= ENDPTCTRL_RXR; /* reset data toggle */
@@ -331,7 +331,7 @@ static int hw_test_and_set_setup_guard(struct ci13xxx *ci)
static void hw_usb_set_address(struct ci13xxx *ci, u8 value)
{
hw_write(ci, OP_DEVICEADDR, DEVICEADDR_USBADR,
value << ffs_nr(DEVICEADDR_USBADR));
value << __ffs(DEVICEADDR_USBADR));
}
/**
@@ -418,7 +418,7 @@ static int _hardware_enqueue(struct ci13xxx_ep *mEp, struct ci13xxx_req *mReq)
* TODO - handle requests which spawns into several TDs
*/
memset(mReq->ptr, 0, sizeof(*mReq->ptr));
mReq->ptr->token = length << ffs_nr(TD_TOTAL_BYTES);
mReq->ptr->token = length << __ffs(TD_TOTAL_BYTES);
mReq->ptr->token &= TD_TOTAL_BYTES;
mReq->ptr->token |= TD_STATUS_ACTIVE;
if (mReq->zptr) {
@@ -504,7 +504,7 @@ static int _hardware_dequeue(struct ci13xxx_ep *mEp, struct ci13xxx_req *mReq)
mReq->req.status = -1;
mReq->req.actual = mReq->ptr->token & TD_TOTAL_BYTES;
mReq->req.actual >>= ffs_nr(TD_TOTAL_BYTES);
mReq->req.actual >>= __ffs(TD_TOTAL_BYTES);
mReq->req.actual = mReq->req.length - mReq->req.actual;
mReq->req.actual = mReq->req.status ? 0 : mReq->req.actual;
@@ -1011,7 +1011,7 @@ static int ep_enable(struct usb_ep *ep,
mEp->qh.ptr->cap &= ~QH_ZLT;
mEp->qh.ptr->cap |=
(mEp->ep.maxpacket << ffs_nr(QH_MAX_PKT)) & QH_MAX_PKT;
(mEp->ep.maxpacket << __ffs(QH_MAX_PKT)) & QH_MAX_PKT;
mEp->qh.ptr->td.next |= TD_TERMINATE; /* needed? */
/*