This patch reworks the cap value from several read and write operations to one single operation. Signed-off-by: Michael Grzeschik <m.grzeschik@xxxxxxxxxxxxxx> Reviewed-by: Felipe Balbi <balbi@xxxxxx> --- drivers/usb/chipidea/udc.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 19fc185..b2c227f 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -1018,6 +1018,7 @@ 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 val = 0; if (ep == NULL || desc == NULL) return -EINVAL; @@ -1039,19 +1040,17 @@ static int ep_enable(struct usb_ep *ep, trace_ci_ep_enable(mEp, 0); - mEp->qh.ptr->cap = 0; - if (mEp->type == USB_ENDPOINT_XFER_CONTROL) - mEp->qh.ptr->cap |= cpu_to_le32(QH_IOS); + val |= 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); + val &= ~QH_MULT; + if (mEp->num) - mEp->qh.ptr->cap |= cpu_to_le32(QH_ZLT); + val |= QH_ZLT; + + val |= (mEp->ep.maxpacket << __ffs(QH_MAX_PKT)) & QH_MAX_PKT; + mEp->qh.ptr->cap = cpu_to_le32(val); - 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? */ /* -- 1.8.2.rc2 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
