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

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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>
This commit is contained in:
Mathias Nyman 2020-07-23 17:45:12 +03:00 committed by Greg Kroah-Hartman
parent 985247fe4c
commit 7cd6312e09
1 changed files with 5 additions and 4 deletions
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9
drivers/usb/host/xhci-dbgcap.c
View file

@ -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;