[PATCH v2 01/11] usb: xhci: add a member hci_version in xhci_ctrl struct

[Chunfeng Yun]

Add a member to save xHCI version, it's used some times.

Signed-off-by: Chunfeng Yun <chunfeng....@mediatek.com>
---
v2: no changes
---
 drivers/usb/host/xhci-ring.c | 4 ++--
 drivers/usb/host/xhci.c      | 1 +
 include/usb/xhci.h           | 1 +
 3 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 092ed6e..79bfc34 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -682,7 +682,7 @@ int xhci_bulk_tx(struct usb_device *udev, unsigned long 
pipe,
                        field |= TRB_ISP;
 
                /* Set the TRB length, TD size, and interrupter fields. */
-               if (HC_VERSION(xhci_readl(&ctrl->hccr->cr_capbase)) < 0x100)
+               if (ctrl->hci_version < 0x100)
                        remainder = xhci_td_remainder(length - running_total);
                else
                        remainder = xhci_v1_0_td_remainder(running_total,
@@ -830,7 +830,7 @@ int xhci_ctrl_tx(struct usb_device *udev, unsigned long 
pipe,
                field |= 0x1;
 
        /* xHCI 1.0 6.4.1.2.1: Transfer Type field */
-       if (HC_VERSION(xhci_readl(&ctrl->hccr->cr_capbase)) >= 0x100) {
+       if (ctrl->hci_version >= 0x100) {
                if (length > 0) {
                        if (req->requesttype & USB_DIR_IN)
                                field |= (TRB_DATA_IN << TRB_TX_TYPE_SHIFT);
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 126dabc..4be1411 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -1283,6 +1283,7 @@ static int xhci_lowlevel_init(struct xhci_ctrl *ctrl)
 
        reg = HC_VERSION(xhci_readl(&hccr->cr_capbase));
        printf("USB XHCI %x.%02x\n", reg >> 8, reg & 0xff);
+       ctrl->hci_version = reg;
 
        return 0;
 }
diff --git a/include/usb/xhci.h b/include/usb/xhci.h
index 7d34103..a3e5914 100644
--- a/include/usb/xhci.h
+++ b/include/usb/xhci.h
@@ -1227,6 +1227,7 @@ struct xhci_ctrl {
        struct xhci_scratchpad *scratchpad;
        struct xhci_virt_device *devs[MAX_HC_SLOTS];
        int rootdev;
+       u16 hci_version;
 };
 
 unsigned long trb_addr(struct xhci_segment *seg, union xhci_trb *trb);
-- 
1.9.1