xhci: dbc: Don't use xhci_write_64() as it takes xhci as a parameter

xhci_write_64() is essentially a wrapper for lo_hi_writeq(), but it
requires struct xhci_hcd * as a parameter.
Use lo_hi_writeq() directly instead

No functional changes
This change helps decoupling xhci and DbC

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-10-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/xhci-dbgcap.c b/drivers/usb/host/xhci-dbgcap.c
index 3375be7..3541fbb 100644 (file)
--- a/drivers/usb/host/xhci-dbgcap.c
+++ b/drivers/usb/host/xhci-dbgcap.c
@@ -101,7 +101,7 @@ static void xhci_dbc_init_contexts(struct xhci_hcd *xhci, u32 string_length)
        ep_ctx->deq             = cpu_to_le64(deq | dbc->ring_in->cycle_state);
 
        /* Set DbC context and info registers: */
-       xhci_write_64(xhci, dbc->ctx->dma, &dbc->regs->dccp);
+       lo_hi_writeq(dbc->ctx->dma, &dbc->regs->dccp);
 
        dev_info = cpu_to_le32((DBC_VENDOR_ID << 16) | DBC_PROTOCOL);
        writel(dev_info, &dbc->regs->devinfo1);
@@ -413,10 +413,11 @@ static int xhci_dbc_mem_init(struct xhci_hcd *xhci, gfp_t flags)
 
        /* Setup ERST register: */
        writel(dbc->erst.erst_size, &dbc->regs->ersts);
-       xhci_write_64(xhci, dbc->erst.erst_dma_addr, &dbc->regs->erstba);
+
+       lo_hi_writeq(dbc->erst.erst_dma_addr, &dbc->regs->erstba);
        deq = xhci_trb_virt_to_dma(dbc->ring_evt->deq_seg,
                                   dbc->ring_evt->dequeue);
-       xhci_write_64(xhci, deq, &dbc->regs->erdp);
+       lo_hi_writeq(deq, &dbc->regs->erdp);
 
        /* Setup strings and contexts: */
        string_length = xhci_dbc_populate_strings(dbc->string);
@@ -788,7 +789,7 @@ static enum evtreturn xhci_dbc_do_handle_events(struct xhci_dbc *dbc)
        if (update_erdp) {
                deq = xhci_trb_virt_to_dma(dbc->ring_evt->deq_seg,
                                           dbc->ring_evt->dequeue);
-               xhci_write_64(xhci, deq, &dbc->regs->erdp);
+               lo_hi_writeq(deq, &dbc->regs->erdp);
        }
 
        return EVT_DONE;